Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Balance at Dec. 31, 2010	$ 20,786	$ 56	$ 21,715	$ (985)
Balance, shares at Dec. 31, 2010		5,641,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(7,237)	0	0	(7,237)
Stock-based compensation expense	738	0	738	0
Issuance of common stock upon conversion of restricted stock units, net of tax withholdings	(38)	1	(39)	0
Issuance of common stock upon conversion of restricted stock units, net of tax withholdings, shares		51,000
Balance at Dec. 31, 2011	14,249	57	22,414	(8,222)
Balance, shares at Dec. 31, 2011	5,692,000	5,692,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,091)	0	0	(3,091)
Stock-based compensation expense	408	0	408	0
Issuance of common stock as equity incentive awards, net of tax withholdings	23	0	23	0
Issuance of common stock as equity incentive awards, net of tax withholdings, shares		13,000
Issuance of common stock upon conversion of restricted stock units, net of tax withholdings	0	0	0	0
Issuance of common stock upon conversion of restricted stock units, net of tax withholdings, shares		1,000
Balance at Dec. 31, 2012	$ 11,589
Balance, shares at Dec. 31, 2012	5,706,439