Summary of Significant Accounting Policies (Details) (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
Basic
Net loss	$ (684)	$ (1,917)	$ (1,423)	$ (3,631)
Less: Preferred dividends and accretion of discount on preferred stock	(111)	(106)	(221)	(210)
Less: Net loss allocated to unvested share-based payment awards	3	13	6	25
Net loss allocated to common stockholders	(792)	(2,010)	(1,638)	(3,816)
Weighted average common shares outstanding including unvested share-based payment awards	825,491	825,366	825,469	825,363
Less: Unvested share-based payment awards	(2,700)	(5,100)	(3,000)	(5,402)
Average shares	822,791	820,266	822,469	819,961
Basic loss per common share	$ (0.96)	$ (2.45)	$ (1.99)	$ (4.65)
Diluted
Net loss allocated to common stockholders	$ (792)	$ (2,010)	$ (1,638)	$ (3,816)
Weighted average common shares outstanding for basic loss per common share	825,491	825,366	825,469	825,363
Add: Dilutive effects of assumed exercises of stock options
Add: Dilutive effects of assumed exercises of stock warrant
Average shares and dilutive potential common shares	822,791	820,266	822,469	819,961
Diluted loss per common share	$ (0.96)	$ (2.45)	$ (1.99)	$ (4.65)