Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' DEFICIT (Details)

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STOCKHOLDERS' DEFICIT (Details) - GPB Debt Holdings II, LLC [Member] - Liability Instrument - Warrants [Member] - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period $ 83 $ 38
Change in fair value included in the statement of comprehensive (income) loss 54 45
Balance, end of period $ 137 $ 83