Quarterly report pursuant to Section 13 or 15(d)

DEBT - Schedule of Debt (Details)

v3.21.2
DEBT - Schedule of Debt (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Long-term debt $ 0 $ 3,627,000
Less: Current portion of debt   (2,174,000)
Long-term portion of debt   1,453,000
Notes Payable, Other | PPP loan    
Debt Instrument [Line Items]    
Long-term debt   2,906,000
Unsecured Debt | Insurance financing    
Debt Instrument [Line Items]    
Long-term debt   $ 721,000