CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net revenue	$ 14,499,000	$ 14,559,000
Cost of sales	9,283,000	9,060,000
Gross profit	5,216,000	5,499,000
Selling, general and administrative expenses	5,056,000	4,932,000
Operating income	160,000	567,000
Other income	(51,000)	(50,000)
Interest expense	102,000	29,000
Income from continuing operations before income taxes	109,000	588,000
Income tax expense	43,000	215,000
Income from continuing operations	66,000	373,000
Discontinued operations (Note 2)
Net income from discontinued operations, net of tax of $38,000 and $235,000 for the three-month periods ended March 31, 2016 and 2015, respectively	72,000	408,000
Gain on sale of discontinued operations, net of tax benefit of $141,000	12,185,000	0
Discontinued operations, net of tax	12,257,000	408,000
Net income	$ 12,323,000	$ 781,000
Basic earnings per share
Continuing operations (in dollars per share)	$ 0.02	$ 0.11
Discontinued operations (in dollars per share)	3.40	0.11
Net income (in dollars per share)	3.42	0.22
Diluted earnings per share
Continuing operations (in dollars per share)	0.02	0.10
Discontinued operations (in dollars per share)	3.24	0.11
Net income (in dollars per share)	$ 3.26	$ 0.21
Weighted average common shares outstanding
Basic (in shares)	3,601,000	3,589,000
Diluted (in shares)	3,778,000	3,746,000
Net income	$ 12,323,000	$ 781,000
Other comprehensive loss - foreign currency translation adjustment	(70,000)	(108,000)
Total comprehensive income	$ 12,253,000	$ 673,000