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Significant Accounting Policies - Additional Information (Details)
9 Months Ended 12 Months Ended
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
segment
$ / shares
shares
Dec. 31, 2018
USD ($)
$ / shares
Number of operating segments | segment   2  
Impairment of goodwill   $ 4,359,000 $ 0
Impairment of intangible assets   0  
Long-term debt   $ 47,585,000  
Class of warrant or right, exercise price of warrants or rights (usd per share) | $ / shares     $ 11.50
Minimum      
Term of contract   6 months  
Finite-lived intangible asset, useful life   1 year  
Minimum | Building And Leasehold Improvements      
Property, plant and equipment, useful life   5 years  
Minimum | Machinery and equipment      
Property, plant and equipment, useful life   3 years  
Maximum      
Term of contract   2 years  
Finite-lived intangible asset, useful life   15 years  
Maximum | Building And Leasehold Improvements      
Property, plant and equipment, useful life   40 years  
Maximum | Machinery and equipment      
Property, plant and equipment, useful life   10 years  
Construction      
Impairment of goodwill   $ 4,359,000  
Service      
Impairment of goodwill $ 0 $ 0  
2019 Refinancing Agreement      
Class of warrant or right, number of securities called by each warrant or right (in shares) | shares   263,314  
Class of warrant or right, exercise price of warrants or rights (usd per share) | $ / shares   $ 7.63  
Revolving Credit Facility | 2019 ABL Credit Agreement      
Line of credit facility, fair value of amount outstanding   $ 0