Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 119,065	$ 102,026
Cost of goods sold	87,604	72,006
Depreciation expense	2,751	3,087
Total cost of goods sold	90,355	75,093
Gross profit	28,710	26,933
Selling expenses	11,097	10,197
General and administrative	11,611	11,661
Amortization expense	122	152
Total operating expenses	22,830	22,010
Income from operations	5,880	4,923
Other income (expense):
Interest expense	(116)	(118)
Realized gain on investments, net	2	4
Loss on sale of property and equipment	(88)	(28)
Other (expense) income	(62)	47
Total other income (expense)	(264)	(95)
Income before provision for income taxes	5,616	4,828
Provision for income taxes	2,305	1,596
Net income	$ 3,311	$ 3,232
Basic earnings per common share	$ 0.21	$ 0.21
Diluted earnings per common share	$ 0.21	$ 0.21
Weighted average number of shares outstanding - Basic	15,537	15,597
Weighted average number of shares outstanding - Diluted	15,773	15,766