CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)
Net revenue	$ 53,554,000	$ 49,136,000
Cost of sales	36,207,000	34,943,000
Gross profit	17,347,000	14,193,000
Selling, general and administrative expenses	19,856,000	19,367,000
Impairment of assets held for sale	88,000
Impairment of goodwill		1,612,000
Operating loss	(2,597,000)	(6,786,000)
Other income	4,957,000	106,000
Loss on sale of fixed assets	(27,000)	(35,000)
Interest expense	(45,000)	(140,000)
Income (loss) before income taxes	2,288,000	(6,855,000)
Income tax benefit	2,000	1,901,000
Net income (loss)	$ 2,290,000	$ (4,954,000)
Basic earnings (loss) per share	$ 0.72	$ (1.57)
Diluted earnings (loss) per share	$ 0.72	$ (1.57)
Weighted average common shares outstanding:
Basic	3,178,000	3,149,000
Diluted	3,192,000	3,149,000
Net income (loss)	$ 2,290,000	$ (4,954,000)
Other comprehensive (loss) income - foreign currency translation adjustment	(36,000)	43,000
Total comprehensive income (loss)	$ 2,254,000	$ (4,911,000)