CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Revenue	$ 7,342	$ 8,067
Costs, expenses and other income:
Cost of goods sold, exclusive of depreciation and amortization	5,697	6,259
Selling, general and administrative	1,299	1,258
Interest expense	10	11
Depreciation and amortization	153	147
Other income, net	(1)	(8)
Total expenses	7,158	7,667
Income from continuing operations before income tax provision	184	400
Income tax provision	7	125
Income from continuing operations	177	275
Discontinued Operations:
Loss from operations of a discontinued component, net of income tax benefit		(212)
Net income	$ 177	$ 63
Basic
Income per share from continuing operations (in dollars per share)	$ 0.08	$ 0.13
Loss per share from discontinued operations (in dollars per share)		$ (0.10)
Total net income per share	$ 0.08	$ 0.03
Diluted
Income per share from continuing operations (in dollars per share)	$ 0.08	$ 0.13
Loss per share from discontinued operations (in dollars per share)		$ (0.10)
Total net income per share	$ 0.08	$ 0.03