CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Revenue	$ 30,510	$ 32,899
Costs, expenses and other income:
Cost of goods sold, exclusive of depreciation and amortization	22,416	22,874
Selling, general and administrative	5,047	4,739
Interest expense	52	56
Depreciation and amortization	614	592
Other income, net	(14)	(160)
Total expenses	28,115	28,101
Income from continuing operations before income tax provision	2,395	4,798
Income tax provision	748	1,139
Income from continuing operations	1,647	3,659
Discontinued Operations:
Loss from operations of a discontinued component, net of income tax benefit	(647)	(1,033)
Loss on disposal of QCC and AMP, net of income tax benefit	(680)
Loss from discontinued operations	(1,327)	(1,033)
Net income	$ 320	$ 2,626
Basic
Income per share from continuing operations (in dollars per share)	$ 0.77	$ 1.83
Loss per share from discontinued operations (in dollars per share)	$ (0.62)	$ (0.52)
Total net income per share (in dollars per share)	$ 0.15	$ 1.31
Diluted
Income per share from continuing operations (in dollars per share)	$ 0.77	$ 1.73
Loss per share from discontinued operations (in dollars per share)	$ (0.62)	$ (0.49)
Total net income per share (in dollars per share)	$ 0.15	$ 1.24