Quarterly report pursuant to Section 13 or 15(d)

Debt (Details Textual)

v3.10.0.1
Debt (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jan. 12, 2018
Jul. 14, 2017
Mar. 31, 2018
Jun. 30, 2018
Mar. 21, 2018
Dec. 31, 2017
Amount Requied To Remit Due to Excess Cash Flow       $ 1,200,000    
Debt Instrument, Periodic Payment     $ 250,000      
Stock Repurchased During Period, Shares   120,000        
Debt Instrument, Maturity Date, Description       Loans under the Credit Agreement bear 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 will be 4.50% per annum and with respect to any Eurodollar loan will be 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 will be 5.00% per annum and with respect to a Eurodollar loan will be 6.00% per annum.    
Debt Instrument, Repurchased Face Amount $ 10,000,000          
Dividends Payable 900,000          
Maximum senior leverage ratio       2.75    
Minimum Fixed charge coverage ratio       1.25    
Increase in net worth, Percentage       25.00%    
Minimum Net Worth Required for Compliance       $ 8,000,000    
Minimum Fixed Charge Ratio Actual Ratio       0.97    
Minimum Fixed Charge Ratio Minimum Requirement       1.15    
Long-term Debt, Excluding Current Maturities       $ 21,063,000   $ 20,556,000
Bridge Loan [Member]            
Debt Instrument, Face Amount $ 10,000,000          
Debt Instrument, Interest Rate, Stated Percentage       7.10%    
Long-term Debt, Excluding Current Maturities       $ 8,236,000   0
Revolving Credit Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity       $ 14,500,000    
Senior Credit Facility [Member]            
Debt Instrument, Maturity Date       Jul. 20, 2021    
Letter of Credit [Member]            
Long-term Debt         $ 8,000,000 $ 5,000,000
Loans Payable [Member] | Senior Credit Facility [Member]            
Debt Instrument, Periodic Payment, Principal       $ 750,000    
Senior Credit Facility Agreement [Member]            
Debt Instrument, Interest Rate, Stated Percentage       8.00%    
Senior Credit Facility Agreement [Member] | Revolving Credit Facility [Member]            
Debt Instrument, Face Amount       $ 24,000,000    
Debt Instrument, Interest Rate, Stated Percentage       6.10%    
Senior Credit Facility Agreement [Member] | Loans Payable [Member]            
Debt Instrument, Face Amount       $ 25,000,000    
Debt Instrument, Periodic Payment, Principal       $ 900,000    
Preferred Class A [Member]            
Stock Repurchased During Period, Shares 280,000