Quarterly report pursuant to Section 13 or 15(d)

Debt - Additional Information (Details)

v3.19.3
Debt - Additional Information (Details)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 01, 2019
Jan. 12, 2018
USD ($)
shares
Jul. 14, 2017
shares
Jul. 31, 2021
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
$ / shares
shares
Aug. 31, 2019
Jul. 20, 2016
USD ($)
Sep. 30, 2019
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
$ / shares
shares
Apr. 12, 2019
USD ($)
Dec. 31, 2018
USD ($)
Nov. 30, 2018
USD ($)
Aug. 13, 2018
Mar. 21, 2018
USD ($)
Dec. 31, 2017
USD ($)
Debt Instrument [Line Items]                                      
Stock Repurchased During Period, Shares | shares     120,000                                
Debt Instrument, Maturity Date, Description                     Loans under the Credit Agreement bore interest, at the Borrower's option, at either Adjusted LIBOR ("Eurodollar") or a Base Rate, in each case, plus an applicable margin. With respect to the Bridge Term Loan, from January 12, 2018 to, but excluding, July 12, 2018 (the six-month anniversary of the loan), the applicable margin with respect to any Base Rate loans was 4.00% per annum and with respect to any Eurodollar loan was 5.00% per annum. From July 12, 2018 to, but excluding, the 12-month anniversary thereof, the applicable margin with respect to any Base Rate loan was 4.50% per annum and with respect to any Eurodollar loan was 5.50% per annum. From the 12-month anniversary of January 12, 2018 and all times thereafter, the applicable margin with respect to any Base Rate loan was 5.00% per annum and with respect to a Eurodollar loan was 6.00% per annum                
Debt Instrument, Repurchased Face Amount   $ 10,000,000                                  
Dividends Payable   900,000                                  
Long-term Debt           $ 46,416,000     $ 46,416,000   $ 46,416,000   $ 46,416,000   $ 27,216,000        
Minimum Fixed Charge Ratio Minimum Requirement                   1.15   1.15              
Debt Instrument, Payment Terms                     Mandatory prepayments were required upon the occurrence of certain events, including, among other things and subject to certain exceptions, equity issuances, changes of control of the Company, certain debt issuances, assets sales and excess cash flow. The Company could voluntarily prepay the loans at any time subject to the limitations set forth in the Credit Agreement                
Debt Instrument, Covenant Description                     (x) the Company shall be required to pay the post-closing fee pursuant to the terms of the Origination Agent Fee Letter (as defined in the 2019 Refinancing Agreement) and (y) the applicable margin shall be increased by 1.00 % per annum for the period from January 1, 2020 until the date at which the material weakness is no longer disclosed or required to be disclosed in the Company's SEC filings or audited financial statements of the Company or related auditor's reports.                
Minimum Fixed Charge Coverage Ratio For First Quarter                                 1.15    
Minimum Fixed Charge Coverage Ratio Thereafter                                 1.25    
Gain (Loss) on Extinguishment of Debt                 $ 0 $ 0 $ (513,000) $ 0              
Amortization of Debt Issuance Costs                     $ 901,000 $ 229,000              
Percentage of number of shares                     2.00%                
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares           $ 11.50     $ 11.50   $ 11.50   $ 11.50            
Debt issuance costs           $ 3,285,000     $ 3,285,000   $ 3,285,000   $ 3,285,000   461,000        
2019 Refinancing Agreement                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Face Amount                           $ 40,000,000          
Short-term Debt, Refinanced, Description                     On April 12, 2019 (the "Refinancing Closing Date"), LFS entered into a financing agreement (the "2019 Refinancing Agreement") with the lenders thereto and Cortland Capital Market Services LLC, as collateral agent and administrative agent and CB Agent Services LLC, as origination agent ("CB"). The 2019 Refinancing Agreement consists of (i) a $40.0 million term loan (the "2019 Refinancing Term Loan") and (ii) a new $25.0 million multi-draw delayed draw term loan (the "2019 Delayed Draw Term Loan" and, collectively with the 2019 Refinancing Term Loan, the                
Debt Instrument, Basis Spread on Variable Rate                     3.00%                
Amortization of Debt Issuance Costs                 $ 200,000   $ 400,000                
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares           $ 7.63     $ 7.63   $ 7.63   $ 7.63            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares           263,314     263,314   263,314   263,314            
Debt issuance costs           $ 2,500,000     $ 2,500,000   $ 2,500,000   $ 2,500,000            
Interest Expense                 100,000   200,000                
Debt Discount           1,300,000     1,300,000   1,300,000   1,300,000            
Other Expenses For Change In Fair Values Of CB Warrants Liability                 500,000                    
Other Expenses For Change In Fair Values Of Embedded Derivative Liability                 400,000                    
Amount drawn           $ 0     $ 0   $ 0   $ 0            
Effective interest rate           10.18%     10.18%   10.18%   10.18%            
Applicable interest to the lenders term                     19 months                
Premium on prepayments term                     18 months                
2019 Refinancing Agreement | 2019 Refinancing Amendment Number One and Waiver                                      
Debt Instrument [Line Items]                                      
Leverage Ratio 4.25%                                    
2019 Refinancing Agreement | Other long-term liabilities [Member]                                      
Debt Instrument [Line Items]                                      
Embedded derivative liability           $ 400,000     $ 400,000   $ 400,000   $ 400,000            
Fair values of the CB Warrants liability           900,000     900,000   900,000   900,000            
2019 Refinancing Agreement | Accrued expenses and other current liabilities [Member]                                      
Debt Instrument [Line Items]                                      
Current portion of the embedded derivative liability           200,000     200,000   200,000   200,000            
2019 Refinancing Agreement | Long-term Debt [Member]                                      
Debt Instrument [Line Items]                                      
Long-term portion of embedded derivative liability           200,000     200,000   $ 200,000   200,000            
2019 ABL Credit Agreement                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Covenant Description                     (1) a minimum EBITDA of $6.5 million for the fourth quarter of 2018, (2) a fixed charge coverage ratio not less than 1.10 for each fiscal quarter ending on or after March 31, 2019 (which was decreased from 1.15 for the fiscal quarters ending on June 30, 2018 through December 31, 2018) and (3) unfinanced capital expenditures not to exceed $1.0 million for each fiscal quarter ending March 31, 2019, June 30, 2019, and September 30, 2019; no unfinanced capital expenditures for the fiscal quarter ending December 31, 2019 and total unfinanced capital expenditures not to exceed $3.0 million for the fiscal year ended December 31, 2019; and no unfinanced capital expenditures                
Debt Instrument, Basis Spread on Variable Rate                     3.00%                
Amortization of Debt Issuance Costs                 100,000                    
Leverage Ratio 4.25%                                    
Debt Instrument, Interest Rate Terms                     The interest rate on borrowings under the 2019 ABL Credit Agreement is, at the Borrowers' option, either LIBOR (with a 2.0% floor) plus an applicable margin ranging from 3.00% to 3.50% or a base rate (with a 3.0% minimum) plus an applicable margin ranging from 2.00% to 2.50%.                
Debt issuance costs           $ 900,000     $ 900,000   $ 900,000   $ 900,000            
Minimum                                      
Debt Instrument [Line Items]                                      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage                     0.25%                
Minimum | 2019 ABL Credit Amendment Number One and Waiver                                      
Debt Instrument [Line Items]                                      
Leverage Ratio 1.00%         1.00% 1.00%                        
Minimum | 2019 Refinancing Agreement                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Interest Rate, Stated Percentage           7.00%     7.00%   7.00%   7.00%            
Leverage Ratio       1.00%   1.00% 4.61%   1.00%       1.00%            
Minimum | 2019 Refinancing Agreement | 2019 Refinancing Amendment Number One and Waiver                                      
Debt Instrument [Line Items]                                      
Leverage Ratio 1.00%         1.00% 1.00%                        
Minimum | 2019 ABL Credit Agreement                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Basis Spread on Variable Rate                     2.00%                
Debt Instrument, Interest Rate, Stated Percentage           3.00%     3.00%   3.00%   3.00%            
Leverage Ratio           1.00% 1.00%                        
Maximum                                      
Debt Instrument [Line Items]                                      
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage                     0.375%                
Maximum | 2019 ABL Credit Amendment Number One and Waiver                                      
Debt Instrument [Line Items]                                      
Leverage Ratio 2.00%         3.30% 4.00%                        
Maximum | 2019 Refinancing Agreement                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Interest Rate, Stated Percentage           8.00%     8.00%   8.00%   8.00%            
Leverage Ratio       2.00%   4.25% 1.00%   4.00%       2.85%            
Maximum | 2019 Refinancing Agreement | 2019 Refinancing Amendment Number One and Waiver                                      
Debt Instrument [Line Items]                                      
Leverage Ratio 2.00%         3.30% 4.00%                        
Maximum | 2019 ABL Credit Agreement                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Basis Spread on Variable Rate                     2.50%                
Debt Instrument, Interest Rate, Stated Percentage           3.50%     3.50%   3.50%   3.50%            
Leverage Ratio           4.00% 4.61%                        
Bridge Loan                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Face Amount   9,100,000                                  
Debt Instrument, Periodic Payment   250,000                                  
Long-term Debt                             7,736,000        
Capital Lease Obligations                                      
Debt Instrument [Line Items]                                      
Long-term Debt           $ 6,028,000     $ 6,028,000   $ 6,028,000   $ 6,028,000   5,145,000        
Capital Lease Obligations | Minimum                                      
Debt Instrument [Line Items]                                      
Interest rate (as a percent)                     4.95%                
Capital Lease Obligations | Maximum                                      
Debt Instrument [Line Items]                                      
Interest rate (as a percent)                     6.10%                
London Interbank Offered Rate (LIBOR) | 2019 Refinancing Agreement                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Basis Spread on Variable Rate                     2.00%                
London Interbank Offered Rate (LIBOR) | 2019 ABL Credit Agreement                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Basis Spread on Variable Rate                     2.00%                
Scenario, Forecast | 2019 Refinancing Agreement                                      
Debt Instrument [Line Items]                                      
Amortization of Debt Issuance Costs         $ 1,000,000                            
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage         2.00%                            
Scenario, Forecast | Minimum | 2019 ABL Credit Agreement                                      
Debt Instrument [Line Items]                                      
Leverage Ratio       1.00%                              
Scenario, Forecast | Maximum | 2019 ABL Credit Agreement                                      
Debt Instrument [Line Items]                                      
Leverage Ratio       1.75%                              
Credit Agreement revolver                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Face Amount               $ 24,000,000                      
Line of Credit Facility, Maximum Borrowing Capacity           20,000,000     20,000,000   $ 20,000,000   20,000,000   22,500,000 $ 25,000,000      
Credit Agreement revolver | 2019 Refinancing Agreement                                      
Debt Instrument [Line Items]                                      
Amount outstanding           0     0   0   0            
Credit Agreement revolver | 2019 ABL Credit Agreement                                      
Debt Instrument [Line Items]                                      
Line of Credit Facility, Maximum Borrowing Capacity           15,000,000     15,000,000   15,000,000   15,000,000            
Line of Credit Facility, Current Borrowing Capacity           14,000,000     14,000,000   14,000,000   14,000,000            
Line Of Credit Facility Reserved Borrowing Capacity           1,000,000     1,000,000   1,000,000   1,000,000            
Letter of Credit                                      
Debt Instrument [Line Items]                                      
Long-term Debt           $ 3,400,000     $ 3,400,000   $ 3,400,000   $ 3,400,000   3,400,000     $ 8,000,000 $ 5,000,000
Credit Agreement                                      
Debt Instrument [Line Items]                                      
Long-term Debt                             $ 0        
Credit Agreement | Bridge Loan                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Repurchased Face Amount   10,000,000                                  
Dividends Payable   $ 900,000                                  
Loans Payable                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Face Amount               25,000,000                      
Debt Instrument, Periodic Payment, Principal               900,000                      
Loans Payable | Senior Credit Facility                                      
Debt Instrument [Line Items]                                      
Debt Instrument, Periodic Payment, Principal               $ 750,000                      
Preferred Class A                                      
Debt Instrument [Line Items]                                      
Stock Repurchased During Period, Shares | shares   280,000