Credit Facility	12 Months Ended
Credit Facility	Dec. 31, 2020
Debt Disclosure [Abstract]
Credit Facility	Credit Facility We had a senior secured revolving credit agreement with JP Morgan Chase Bank, N.A (the "Amended Credit Agreement") that matured on March 31, 2021. Please see Note 18 - Subsequent Events for further discussion of the maturity event. The Amended Credit Agreement had an aggregate commitment of $30 million, subject to collateral availability. We also had a right to request from the Lender, on an uncommitted basis, an increase of up to $20 million on the aggregate commitment (which could have potentially increased the commitment amount to $50 million). Borrowing Base. At any time before the maturity of the Amended Credit Agreement, we could draw, repay and re-borrow amounts available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equaled the sum of (a) 80% of our eligible accounts receivable plus (b) 50% of the book value of our eligible general inventory (not to exceed 50% of the commitment amount at the time) plus (c) 75% of the book value of our eligible equipment inventory. JPMorgan Chase Bank (the “Lender”) could adjust the borrowing base components if material deviations in the collateral were discovered in audits of the collateral. We had $29.5 million borrowing base availability at December 31, 2020 under the terms of our Amended Credit Agreement. Interest and Fees. Under the terms of the Amended Credit Agreement, we had the option of selecting the applicable variable rate for each revolving loan, or portion thereof, of either (a) LIBOR multiplied by the Statutory Reserve Rate (as defined in the Amended Credit Agreement), with respect to this rate, for Eurocurrency funding, plus the Applicable Margin (“LIBOR-based”), or (b) CB Floating Rate, which is the Lender's Prime Rate less the Applicable Margin; provided, however, that no more than three LIBOR-based borrowings under the agreement could be outstanding at any one time. For purposes of the LIBOR-based interest rate, the Applicable Margin is 1.50%. For purposes of the CB Floating Rate, the Applicable Margin is 1.25%. Accrued interest was payable monthly on outstanding principal amounts, provided that accrued interest on LIBOR-based loans was payable at the end of each interest period, but in no event less frequently than quarterly. In addition, fees and expenses were payable in connection with our requests for letters of credit (generally equal to the Applicable Margin for LIBOR-related borrowings multiplied by the face amount of the requested letter of credit) and administrative and legal costs. Maturity. The maturity date of the Amended Credit Agreement, originally scheduled for December 31, 2020, was extended to March 31, 2021 on December 29, 2020, at which time all amounts borrowed under the agreement will be due and outstanding letters of credit must be cash collateralized. The agreement could be terminated early upon our request or the occurrence of an event of default. Security. The obligations under the Amended Credit Agreement were secured by a first priority lien on all of our inventory and accounts and lease receivables, along with a first priority lien on a variable number of our leased compressor equipment the book value of must be maintained at a minimum of 2.00 to 1.00 commitment coverage ratio (such ratio being equal to (i) the amount of the borrowing base as of such date to (ii) the amount of the commitment as of such date.) Covenants. The Amended Credit Agreement contained customary representations and warranties, as well as covenants which, among other things, limited our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge or effect asset sales; or change the nature of our business. In addition, we also had certain financial covenants that required us to maintain a leverage ratio less than or equal to 2.50 to 1.00 as of the last day of each fiscal quarter. Events of Default and Acceleration. The Amended Credit Agreement contained customary events of default for credit facilities of this size and type, and included, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the loan documents; inaccuracies in representations and warranties; certain defaults, termination events or similar events; certain defaults with respect to any other Company indebtedness in excess of $50,000; certain bankruptcy or insolvency events; the rendering of certain judgments in excess of $150,000; certain ERISA events; certain change in control events and the defectiveness of any liens under the secured revolving credit facility. Obligations under the Amended Credit Agreement could be accelerated upon the occurrence of an event of default. As of December 31, 2020, we were in compliance with all covenants in our Amended Credit Agreement. A default under our Credit Agreement would trigger the acceleration of our bank debt so that it is immediately due and payable. Such default would likely limit our ability to access other credit. At December 31, 2020 our balance on the line of credit was $417,000. Our weighted average interest rate for the year ended December 31, 2020 was 2.75%. CARES Act Loan On April 10, 2020, the Company entered into a promissory note (the "Loan") for an unsecured loan in the amount of $4.6 million through the Paycheck Protection Program ("PPP") established by the CARES Act and administered by the U.S. Small Business Administration ("SBA"). The Loan was made for the purpose of securing funding for salaries and wages of employees that may have otherwise been displaced by the outbreak of COVID-19 and the resulting detrimental impact on the Company's business. JPMorgan Chase Bank, N.A. (the "Lender") processed and funded the Loan. On April 23, 2020, the SBA advised that companies that applied for and received PPP loans that had other sufficient sources of liquidity that would not be "significantly detrimental" to their businesses may be subject to increased scrutiny and potential liability unless these companies repaid their loans in full by May 7, 2020. While the Company believes it was justified in seeking the Loan and the funds received were earmarked for the purposes set forth in the original PPP regulations, the Company voluntarily repaid the Loan, with accrued interest, to the Lender on May 4, 2020.