Condensed Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net sales	$ 17,806,000	$ 25,500,000	$ 40,967,000	$ 43,654,000
Cost of goods sold, excluding depreciation and amortization	11,574,000	12,887,000	25,556,000	22,487,000
Gross profit	6,232,000	12,613,000	15,411,000	21,167,000
Operating expenses:
Selling, general and administrative	4,199,000	4,553,000	8,777,000	8,656,000
Depreciation and amortization	203,000	178,000	401,000	360,000
Total operating expenses	4,402,000	4,731,000	9,178,000	9,016,000
Income from operations	1,830,000	7,882,000	6,233,000	12,151,000
Other income:
Equity in income of unconsolidated affiliate	188,000	119,000	510,000	206,000
Gain /(Loss) on marketable securities	0	41,000	0	(18,000)
Interest income, net	0	0	1,000	16,000
Total other income	188,000	160,000	511,000	204,000
Income before provision for income taxes	2,018,000	8,042,000	6,744,000	12,355,000
Provision for income taxes	347,000	1,822,000	1,354,000	794,000
Net income	$ 1,671,000	$ 6,220,000	$ 5,390,000	$ 11,561,000
Basic (in dollars per share)	$ 0.13	$ 0.47	$ 0.41	$ 0.87
Diluted (in dollars per share)	$ 0.12	$ 0.46	$ 0.40	$ 0.84
Basic weighted average common shares outstanding (in shares)	13,246,676	13,351,675	13,294,571	13,351,674
Diluted weighted average common shares outstanding (in shares)	13,511,497	13,651,995	13,621,101	13,813,094