SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Interest paid	$ 451,000	$ 593,000
Income taxes (received) paid	350,000	230,000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in equity	26,000	25,000	$ 25,000
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in equity	2,000	1,000
Common Stock \| Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued	2,000	1,000
Additional Paid-in Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in equity	$ 24,000	$ 24,000

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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