Stocholders' Equity - Common Stock (Details) (USD $)	0 Months Ended	4 Months Ended		0 Months Ended		12 Months Ended		0 Months Ended
	Aug. 19, 2009 director	Dec. 31, 2009 tranche	Mar. 28, 2011	Aug. 19, 2009 Minimum [Member]	May 20, 2011 May 20, 2011 [Member]	Dec. 31, 2011 Options Matching Right [Member]	Nov. 12, 2009 Options Matching Right [Member]	May 20, 2011 Common Stock [Member]	May 20, 2011 Common Stock [Member] Kien Huat Realty Limited [Member]	Mar. 28, 2011 Common Stock [Member] Kien Huat Realty Limited [Member]
Class of Warrant or Right [Line Items]
Stock called by each right (shares)			0.18917
Exercise price of right (usd per right)			2.65				3.42
Conversion of common stock (shares)								6,628,925
Stock issued during the period					$ 17,600,000
Proceeds from issuance of common stock		55,000,000
Additional shares puchased by shareholder (shares)									6,608,794
Shares owned by shareholder (shares)										18,254,246
Percentage of shares owned by shareholder										60.00%
Number of trenches proceeds were received in		2
Rights granted (shares)						27,000
Rights granted, weighted average exercise price (usd per right)						5.20
Aggregate fair value of rights						$ 46,000	$ 673,000
Rights outstanding (shares)						1,300,000
Rights outstanding, weighted average share price (usd per right)						8.93
Number of director shareholder may recommend	3
Minimum ownerhip requirement for recommendation of directors				24.00%
Number of directors shareholder may nominate as chairman of board	1
Minimum ownership requirement for nomination of Chairman of Board (director)				30.00%