Condensed Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net sales	$ 12,304,000	$ 11,442,000
Cost of goods sold, excluding depreciation and amortization	7,500,000	6,987,000
Gross profit	4,804,000	4,455,000
Operating expenses:
Selling, general and administrative	3,675,000	3,881,000
Depreciation and amortization	127,000	146,000
Total operating expenses	3,802,000	4,027,000
Income from operations	1,002,000	428,000
Other income:
Equity in income of unconsolidated affiliate	277,000	139,000
Gain on marketable securities	170,000	32,000
Interest income, net	12,000	1,000
Total other income	459,000	172,000
Income before provision for income taxes	1,461,000	600,000
Provision for income taxes	243,000	92,000
Net income	$ 1,218,000	$ 508,000
Basic earnings per common share (in dollars per share)	$ 0.09	$ 0.04
Diluted earnings per common share (in dollars per share)	$ 0.09	$ 0.04
Basic weighted average common shares outstanding (in shares)	13,391,992	14,217,919
Diluted weighted average common shares outstanding (in shares)	13,469,497	14,383,005