INCOME AND OTHER TAXES (Details 1) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
INCOME AND OTHER TAXES
Tax benefit at federal statutory rate	$ (93,000)	$ 13,000
State income tax effect	(67,000)	2,000
Foreign income tax effect	136,000	127,000
Non-deductible items	4,000	0
Non-taxable item - gain on CARES Act loan	0	93,000
Percentage depletion	0	20,000
Adj for prior year tax estimate to actual-domestic	69,000	44,000
Adj for prior year tax estimate to actual-foreign	(32,000)	1,431,000
Impact on change in state tax rate	7,000	0
Impact on change in foreign exchange rate	(83,000)	35,000
Change in valuation allowance - Domestic	(358,000)	(212,000)
Change in valuation allowance - Foreign	385,000	(1,043,000)
Total	$ 16,000	$ 0