Annual report pursuant to Section 13 and 15(d)

Business Combination (Details Textual)

v3.8.0.1
Business Combination (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 5 Months Ended 7 Months Ended 12 Months Ended
Jul. 14, 2017
Aug. 30, 2017
Jul. 20, 2016
Jul. 19, 2016
Dec. 31, 2016
Jul. 19, 2016
Dec. 31, 2017
Jul. 31, 2014
Business Acquisition [Line Items]                
Business Acquisition, Goodwill, Expected Tax Deductible Amount       $ 10,500   $ 10,500    
Share-based Compensation   $ 1,700     $ 0   $ 1,656  
Common Stock, Shares, Outstanding         7,454,491   7,504,133  
Common Stock, Par or Stated Value Per Share         $ 0.0001   $ 0.0001  
Class of Warrant or Right, Outstanding         4,665,676   4,659,472 4,798,000
Stock Issued During Period, Shares, New Issues     2,200,005          
Stock Repurchased During Period, Shares 120,000           2,800,000  
Stock Redeemed or Called During Period, Value         $ 39,960   $ 28,000  
Stock Redeemed or Called During Period, Shares             3,995,919  
Merger Warrants [Member]                
Business Acquisition [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights         $ 12.50   $ 12.50  
Business Acquisition, Number Of Warrants Issued     666,670          
Class of Warrant or Right, Outstanding         666,670   664,188  
Additional Merger Warrants [Member]                
Business Acquisition [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights         $ 11.50   $ 11.50  
Business Acquisition, Number Of Warrants Issued     1,000,006          
Class of Warrant or Right, Outstanding         1,000,006   996,284  
Affiliates [Member]                
Business Acquisition [Line Items]                
Common Stock, Shares, Outstanding     1,743,000          
Common Stock, Par or Stated Value Per Share     $ 7.66          
Affiliates [Member] | Merger Warrants [Member]                
Business Acquisition [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 12.50          
Warrant Expiration Term     7 years          
Business Acquisition, Number Of Warrants Issued     529,101          
Class Of Warrant Or Right, Warrants Par Value     $ 0.63          
Affiliates [Member] | Additional Merger Warrants [Member]                
Business Acquisition [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 11.50          
Warrant Expiration Term     5 years          
Class Of Warrant Or Right, Warrants Par Value     $ 0.50          
Class of Warrant or Right, Outstanding     793,651          
Non Affiliates [Member]                
Business Acquisition [Line Items]                
Common Stock, Shares, Outstanding     457,005          
Common Stock, Par or Stated Value Per Share     $ 9.01          
Non Affiliates [Member] | Merger Warrants [Member]                
Business Acquisition [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 12.50          
Warrant Expiration Term     7 years          
Business Acquisition, Number Of Warrants Issued     137,569          
Class Of Warrant Or Right, Warrants Par Value     $ 1.13          
Non Affiliates [Member] | Additional Merger Warrants [Member]                
Business Acquisition [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 11.50          
Warrant Expiration Term     5 years          
Class Of Warrant Or Right, Warrants Par Value     $ 0.98          
Class of Warrant or Right, Outstanding     206,355          
Selling, General and Administrative Expenses [Member]                
Business Acquisition [Line Items]                
Business Acquisition, Transaction Costs         $ 100      
1347 Capital Corp [Member]                
Business Acquisition [Line Items]                
Business Acquisition, Transaction Costs       5,900   5,900    
Predecessor [Member]                
Business Acquisition [Line Items]                
Share-based Compensation       $ 1,500   $ 1,349    
Limbach [Member]                
Business Acquisition [Line Items]                
Payments to Acquire Businesses, Gross     $ 32,396          
Business Acquisition, Number Of Warrants Issued     666,670          
Limbach [Member] | Merger Warrants [Member]                
Business Acquisition [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 12.50          
Limbach [Member] | Additional Merger Warrants [Member]                
Business Acquisition [Line Items]                
Class of Warrant or Right, Exercise Price of Warrants or Rights     $ 11.50          
Limbach [Member] | Predecessor [Member]                
Business Acquisition [Line Items]                
Additional Cash Paid For Consideration     $ 600          
Additional Share Based Compensation     600          
Payments to Acquire Businesses, Gross     $ 33,000