CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]
Revenue	$ 7,727	$ 7,516	$ 23,136	$ 23,302
Costs, expenses and other income:
Cost of goods sold, exclusive of depreciation and amortization	5,594	5,536	17,164	17,081
Selling, general and administrative	1,506	1,275	4,140	3,753
Interest expense	10	11	31	34
Depreciation and amortization	152	141	460	437
Other income, net	(44)	(2)	(45)	(12)
Total expenses	7,218	6,961	21,750	21,293
Income from continuing operations before income tax provision	509	555	1,386	2,009
Income tax provision	151	249	347	663
Income from continuing operations	358	306	1,039	1,346
Discontinued Operations:
Loss from operations of a discontinued component, net of income tax benefit		(188)		(591)
Loss on disposal of QCC and AMP, net of income tax benefit		(262)		(530)
Loss from discontinued operations		(450)		(1,121)
Net income (loss)	$ 358	$ (144)	$ 1,039	$ 225
Basic
Income per share from continuing operations (in dollars per share)	$ 0.16	$ 0.14	$ 0.46	$ 0.63
Loss per share from discontinued operations (in dollars per share)		$ (0.21)		$ (0.53)
Total net income (loss) per share (in dollars per share)	$ 0.16	$ (0.07)	$ 0.46	$ 0.10
Diluted
Income per share from continuing operations (in dollars per share)	$ 0.16	$ 0.14	$ 0.46	$ 0.63
Loss per share from discontinued operations (in dollars per share)		$ (0.21)		$ (0.52)
Total net income (loss) per share (in dollars per share)	$ 0.16	$ (0.07)	$ 0.46	$ 0.11