Shareholders' Equity - Calculation of earning per share (Details 1) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Equity [Abstract]
Net income from continuing operations	$ 622	$ 729	$ 777	$ 1,211
Net income from discontinued operations	(342)	(13)	(428)	(77)
Net income	$ 280	$ 716	$ 349	$ 1,134
Weighted average common shares outstanding (basic) (in shares)	2,151	1,982	2,114	1,982
Incremental shares from assumed conversions of stock options	7	131	25	131
Weighted average common shares outstanding (diluted) (in shares)	2,158	2,113	2,139	2,113
Basic
Income per share from continuing operations (in dollars per share)	$ 0.29	$ 0.37	$ 0.37	$ 0.61
Loss per share from discontinued operations (in dollars per share)	$ (0.16)	$ (0.01)	$ (0.20)	$ (0.04)
Total net income per share (in dollars per share)	$ 0.13	$ 0.36	$ 0.17	$ 0.57
Diluted
Income per share from continuing operations (in dollars per share)	$ 0.29	$ 0.35	$ 0.36	$ 0.57
Loss per share from discontinued operations (in dollars per share)	$ (0.16)	$ (0.01)	$ (0.20)	$ (0.04)
Total net income per share (in dollars per share)	$ 0.13	$ 0.34	$ 0.16	$ 0.53