Loss Per Share (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Number of shares used in computation of basic and diluted earnings per share:
Net loss	$ (888)	$ (2,269)	$ (1,226)	$ (2,140)
Less: Accretion of discount on preferred stock	(18)	(17)	(35)	(33)
Dividends on preferred stock	(95)	(95)	(190)	(190)
Net Loss available to common shareholders	$ (1,001)	$ (2,381)	$ (1,451)	$ (2,363)