Shareholders' Equity - Calculation of earning per share (Details 1) (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
Equity [Abstract]
Income from continuing operations	$ 358	$ 306	$ 1,039	$ 1,346
Loss from discontinued operations		(450)		(1,121)
Net income (loss)	$ 358	$ (144)	$ 1,039	$ 225
Weighted average common shares outstanding (basic) (in shares)	2,305	2,146	2,259	2,125
Incremental shares from assumed conversions of stock options		6	1	19
Weighted average common shares outstanding (diluted) (in shares)	2,305	2,152	2,260	2,144
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