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Debt - Narrative (Details)
1 Months Ended
Jul. 13, 2020
USD ($)
Dec. 31, 2019
USD ($)
Sep. 30, 2020
USD ($)
May 08, 2020
USD ($)
Nov. 20, 2019
USD ($)
Aug. 07, 2017
USD ($)
Debt Instrument [Line Items]            
Total debt outstanding   $ 36,530,000 $ 34,035,000      
First Lien Term Loan            
Debt Instrument [Line Items]            
Indebtedness outstanding   18,008,000 $ 13,038,000      
Interest rate     8.25%      
Maximum amount from credit agreement           $ 45,000,000.0
Repayments of long-term debt $ 2,500,000          
FCCR requirement, next twelve months 0.70          
FCCR requirement, after year one 1.00          
Fixed charge coverage ratio 1.00          
Debt instrument, amendment fee $ 375,000          
First Lien Term Loan | Through July 31, 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, required minimum liquidity 8,000,000.0          
First Lien Term Loan | Through August 31, 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, required minimum liquidity 5,500,000          
First Lien Term Loan | Through November 30, 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, required minimum liquidity 5,000,000.0          
First Lien Term Loan | On And After December 1, 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, required minimum liquidity 4,000,000.0          
First Lien Term Loan | Year 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, maximum capital expenditures 6,000,000.0          
First Lien Term Loan | Year 2021            
Debt Instrument [Line Items]            
Debt instrument, covenant, maximum capital expenditures 7,500,000          
First Lien Term Loan | Per Quarter For The Next Five Quarters            
Debt Instrument [Line Items]            
Debt instrument, amendment fee 50,000          
First Lien Term Loan | Maturity Date Of The First Lien Credit Agreement            
Debt Instrument [Line Items]            
Debt instrument, amendment fee $ 125,000          
Second Lien Term Loan            
Debt Instrument [Line Items]            
Indebtedness outstanding   9,013,000 $ 8,487,000      
Interest rate     11.00%      
FCCR requirement, next twelve months 0.60          
FCCR requirement, after year one 0.85          
Second Lien Term Loan | Through July 31, 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, required minimum liquidity $ 6,800,000          
Second Lien Term Loan | Through August 31, 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, required minimum liquidity 4,700,000          
Second Lien Term Loan | Through November 30, 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, required minimum liquidity 4,250,000          
Second Lien Term Loan | On And After December 1, 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, required minimum liquidity 3,400,000          
Second Lien Term Loan | Year 2020            
Debt Instrument [Line Items]            
Debt instrument, covenant, maximum capital expenditures 7,100,000          
Second Lien Term Loan | Year 2021            
Debt Instrument [Line Items]            
Debt instrument, covenant, maximum capital expenditures $ 8,800,000          
PPP Loan            
Debt Instrument [Line Items]            
Indebtedness outstanding   0 $ 4,000,000.0      
Interest rate     1.00% 1.00%    
Maximum amount from credit agreement       $ 4,000,000.0    
Vehicle Term Loan            
Debt Instrument [Line Items]            
Indebtedness outstanding   725,000 $ 453,000      
Debt instrument, periodic payment   $ 7,000        
Interest rate   6.50% 5.27%      
Equipment Term Loan            
Debt Instrument [Line Items]            
Indebtedness outstanding   $ 0 $ 178,000      
Debt instrument, face amount         $ 200,000  
Interest rate     6.50%      
Finance leases | Appalachian Water Services            
Debt Instrument [Line Items]            
Indebtedness outstanding     $ 7,900,000