Consolidated Statement of Shareholders' Equity (USD $) In Thousands, except Share data	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit
Balance at Dec. 31, 2011	$ 192,765	$ 0	$ 11	$ 225,169	$ (32,415)
Shares, Outstanding Period Start at Dec. 31, 2011		0	10,714,286
Stock-based compensation expense, shares			53,572
Stock-based compensation expense	17			17
Net loss	(9,775)				(9,775)
Balance at Mar. 31, 2012	$ 183,007	$ 0	$ 11	$ 225,186	$ (42,190)
Shares, Outstanding Period End at Mar. 31, 2012		0	10,767,858