Consolidated Statements of Income - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Net sales	$ 46,624,000	$ 44,025,000
Cost of goods sold, excluding depreciation and amortization	28,913,000	26,573,000
Gross profit	17,711,000	17,452,000
Operating expenses:
Selling, general and administrative	13,312,000	13,955,000
Depreciation and amortization	525,000	571,000
Total operating expenses	13,837,000	14,526,000
Income from operations	3,874,000	2,926,000
Other income (expense):
Equity in income of unconsolidated affiliate	587,000	355,000
Gain on sale of property		385,000
Losses from marketable securities	(50,000)
Interest income, net	3,000	4,000
Total other income, net	540,000	744,000
Income before provision for income taxes	4,414,000	3,670,000
Provision for income taxes	789,000	1,037,000
Net income	$ 3,625,000	$ 2,633,000
Basic earnings per common share (in dollars per share)	$ 0.26	$ 0.18
Diluted earnings per common share (in dollars per share)	$ 0.26	$ 0.18
Basic weighted average common shares outstanding (in shares)	13,909,688	14,825,600
Diluted weighted average common shares outstanding (in shares)	13,962,819	14,993,009