Note 2 - Discontinued Operations - Summarized Discontinued Operatings Financial Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net Income (Loss) prior to non-controlling interest	$ 0	$ (473,000)
CTI Europe [Member]
Net Sales		897,000
Cost of Sales		1,135,000
Gross Loss		(238,000)
SG&A		328,000
Operating Loss		(566,000)
Other Expense		(118,000)
Total pretax loss from discontinued operations		(684,000)
Gain from classification to held for sale		251,000
Net Income (Loss) prior to non-controlling interest		(433,000)
Non-controlling Interest share of profit/loss		40,000
Net Income (Loss)		(473,000)
Depreciation	$ 0	$ 13,000