Condensed Consolidated Statements of Operations and Comprehensive Income/(Loss) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Net sales	$ 8,097	$ 8,600	$ 15,788	$ 16,139
Cost of sales	5,570	6,205	10,984	11,635
Gross profit	2,527	2,395	4,804	4,504
Operating expenses:
Selling, general and administrative	2,128	2,253	4,478	4,615
Engineering and product development	324	316	619	655
Total operating expenses	2,452	2,569	5,097	5,270
Income/(Loss) from operations	75	(174)	(293)	(766)
Other income (expense):
Interest income	23	11	44	23
Interest expense	(136)	(92)	(254)	(183)
Other, net	4	483	107	405
Gain on extinguishment of debt		275		275
Total other income/(expense), net	(109)	677	(103)	520
Income/(Loss) before income taxes	(34)	503	(396)	(246)
Income tax expense	66	125	232	238
Income/(Loss) from continuing operations	(100)	378	(628)	(484)
Discontinued operations:
Loss on sale of discontinued operations				(9)
Net Income/(loss)	(100)	378	(628)	(493)
Weighted average shares outstanding
Basic	10,698	10,683	10,698	10,683
Diluted	10,698	10,683	10,698	10,683
Income/(loss) per share
Continuing operations	$ (0.01)	$ 0.04	$ (0.06)	$ (0.05)
Net income/(loss)	$ (0.01)	$ 0.04	$ (0.06)	$ (0.05)
Diluted
Continuing operations	$ (0.01)	$ 0.04	$ (0.06)	$ (0.05)
Net Income/(loss)	$ (0.01)	$ 0.04	$ (0.06)	$ (0.05)
Statement of Comprehensive Income/(Loss)
Net Income/(loss)	(100)	378	(628)	(493)
Foreign currency translation adjustment	(13)	(327)	(702)	145
Comprehensive Income/(loss)	$ (113)	$ 51	$ (1,330)	$ (348)