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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2021
Accounting Policies [Abstract]  
Disaggregation of Revenue
The following table shows the Company's revenue disaggregated by product or service type for the three and nine months ended September 30, 2021 and 2020:
Three months ended September 30,Nine months ended September 30,
2021202020212020
(in thousands)(in thousands)
Compressors - sales$— $— $1,891 $2,211 
Flares - sales74 67 149 308 
Other (parts/rebuilds) - sales1,398 469 3,716 1,475 
Service and maintenance578 368 1,486 974 
Total revenue from contracts with customers2,050 904 7,242 4,968 
Add: ASC 842 rental revenue16,195 14,861 47,149 46,092 
Total revenue$18,245 $15,765 $54,391 $51,060 
Schedule of Contract with Customer, Asset and Liability
As of September 30, 2021 and December 31, 2020, we had the following receivables and deferred income from contracts with customers:
September 30, 2021December 31, 2020
(in thousands)
Accounts Receivable
Accounts receivable - contracts with customers$3,359 $3,243 
Accounts receivable - ASC 8429,385 9,802 
Total Accounts Receivable$12,744 $13,045 
Less: Allowance for doubtful accounts(1,150)(1,161)
Total Accounts Receivable, net$11,594 $11,884 
Deferred income$693 $1,103