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Debt - Narrative (Details)
1 Months Ended
Feb. 07, 2021
USD ($)
Nov. 20, 2019
USD ($)
truck
Dec. 31, 2019
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]          
Indebtedness outstanding     $ 36,530,000 $ 35,269,000  
Credit given for rental payments previously made   $ 400,000      
Number of trucks refinanced | truck   4      
First Lien Term Loan          
Debt Instrument [Line Items]          
Indebtedness outstanding     18,008,000 $ 17,185,000  
Interest rate       8.77%  
Second Lien Term Loan          
Debt Instrument [Line Items]          
Indebtedness outstanding     9,013,000 $ 9,013,000  
Interest rate       11.00%  
Bridge Term Loan          
Debt Instrument [Line Items]          
Indebtedness outstanding     725,000 $ 634,000 $ 32,500,000
Interest rate       5.27%  
Equipment Term Loan          
Debt Instrument [Line Items]          
Indebtedness outstanding     0 $ 219,000  
Debt instrument, face amount   $ 200,000      
Interest rate       6.50%  
Finance leases          
Debt Instrument [Line Items]          
Indebtedness outstanding     8,784,000 $ 8,218,000  
Finance leases | Appalachian Water Services          
Debt Instrument [Line Items]          
Indebtedness outstanding       $ 8,200,000  
Vehicle Term Loan          
Debt Instrument [Line Items]          
Debt instrument, periodic payment     $ 6,842    
Interest rate     6.50%    
Scenario, Forecast | First Lien Term Loan          
Debt Instrument [Line Items]          
Repayments of debt $ 15,000,000