Consolidated Statement of Stockholders' Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]
Balance at Dec. 31, 2009	$ 19,290	$ 156	$ 20,605	$ (1,471)
Balance, shares at Dec. 31, 2009		15,642
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	486			486
Stock-based compensation expense	871		871
Issuance of common stock upon exercise of restricted stock units, net of tax withholdings, shares		23
Issuance of common stock upon conversion of restricted stock units, net of tax withholdings	(18)	1	(19)
Issuance of common stock upon exercise of stock warrants, shares		1,257
Issuance of common stock upon exercise of stock warrants	157	12	145	0
Balance at Dec. 31, 2010	20,786	169	21,602	(985)
Balance, shares at Dec. 31, 2010	16,922	16,922
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(7,237)			(7,237)
Stock-based compensation expense	738		738
Issuance of common stock upon exercise of restricted stock units, net of tax withholdings, shares		154
Issuance of common stock upon conversion of restricted stock units, net of tax withholdings	(38)	2	(40)	0
Balance at Dec. 31, 2011	$ 14,249	$ 171	$ 22,300	$ (8,222)
Balance, shares at Dec. 31, 2011	17,076	17,076