Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies (Details Textual)

v3.19.1
Significant Accounting Policies (Details Textual) - USD ($)
$ in Millions
12 Months Ended
Jan. 08, 2018
Dec. 31, 2018
Dec. 31, 2016
Contract with Customer Regarding Accounts Receivable Description   typically 10%, to be withheld by the customer until after the Company has completed work on the project  
Omni bus Incentive Plan [Member]      
Common Stock, Capital Shares Reserved for Future Issuance     800,000
Maximum [Member]      
Finite-Lived Intangible Asset, Useful Life 15 years    
Maximum [Member] | Machinery and Equipment [Member]      
Property, Plant and Equipment, Useful Life   10 years  
Maximum [Member] | Building And Leasehold Improvements [Member]      
Property, Plant and Equipment, Useful Life   40 years  
Minimum [Member]      
Finite-Lived Intangible Asset, Useful Life 1 year    
Minimum [Member] | Machinery and Equipment [Member]      
Property, Plant and Equipment, Useful Life   3 years  
Minimum [Member] | Building And Leasehold Improvements [Member]      
Property, Plant and Equipment, Useful Life   5 years  
Revolving Credit Facility [Member]      
Line of Credit Facility, Fair Value of Amount Outstanding   $ 7.7  
Senior Credit Facility [Member]      
Line of Credit Facility, Fair Value of Amount Outstanding   $ 14.3