CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balances at Dec. 31, 2009	$ 19	$ 35,697	$ (33,122)	$ 2,594
Balances (in shares) at Dec. 31, 2009	19,406
Fair value of common stock warrants issued for services rendered	0	74	0	0
Stock-based compensation expense	0	940	0	940
Proceeds from issuance of common stock, net of issuance costs of $29 and option liability of $1,544	4	2,423	0	2,427
Proceeds from issuance of common stock, net of issuance costs of $29 and option liability of $1,544 (in shares)	3,861
Issuance of common stock upon exercise of stock options	0	0	0	0
Issuance of common stock upon exercise of stock options (in shares)	181
Repurchase of common stock	(3)	(2,194)	0	(2,197)
Repurchase of common stock (in shares)	(2,969)
Net income (loss)	0	0	279	279
Balances at Dec. 31, 2010	20	36,940	(32,843)	4,117
Balances (in shares) at Dec. 31, 2010	20,479
Fair value of common stock warrants issued for services rendered	0	80	0	80
Stock-based compensation expense	0	1,270	0	1,270
Issuance of common stock upon exercise of stock options	1	0	0	1
Issuance of common stock upon exercise of stock options (in shares)	99
Net income (loss)	0	0	(356)	(356)
Balances at Dec. 31, 2011	$ 21	$ 38,290	$ (33,199)	$ 5,112
Balances (in shares) at Dec. 31, 2011	20,578