Condensed Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net sales	$ 12,027,000	$ 12,104,000	$ 35,745,000	$ 35,655,000
Cost of goods sold, excluding depreciation and amortization	7,807,000	7,519,000	22,616,000	21,896,000
Gross profit	4,220,000	4,585,000	13,129,000	13,759,000
Operating expenses:
Selling, general and administrative	3,172,000	2,676,000	10,108,000	10,024,000
Depreciation and amortization	142,000	140,000	410,000	430,000
Total operating expenses	3,314,000	2,816,000	10,518,000	10,454,000
Income from operations	906,000	1,769,000	2,611,000	3,305,000
Other income:
Equity in income of unconsolidated affiliate	10,000	103,000	371,000	393,000
Gain (loss) on marketable securities	(387,000)	25,000	223,000	(40,000)
Interest income, net	18,000	1,000	52,000	2,000
Total other income (loss)	(359,000)	129,000	646,000	355,000
Income before provision for income taxes	547,000	1,898,000	3,257,000	3,660,000
Provision for income taxes	110,000	359,000	592,000	653,000
Net income	$ 437,000	$ 1,539,000	$ 2,665,000	$ 3,007,000
Basic earnings per common share (in dollars per share)	$ 0.03	$ 0.11	$ 0.20	$ 0.21
Diluted earnings per common share (in dollars per share)	$ 0.03	$ 0.11	$ 0.20	$ 0.21
Basic weighted average common shares outstanding (in shares)	13,056,173	13,795,007	13,209,598	14,031,518
Diluted weighted average common shares outstanding (in shares)	13,075,692	13,853,619	13,238,026	14,076,033