Stocholders' Equity - Common Stock (Details) (USD $)	0 Months Ended		4 Months Ended	12 Months Ended			0 Months Ended		12 Months Ended		0 Months Ended
	Apr. 30, 2013	Aug. 19, 2009 director	Dec. 31, 2009 tranche	Dec. 31, 2013	Dec. 31, 2012	Mar. 28, 2011	Aug. 19, 2009 Minimum [Member]	May 20, 2011 May 20, 2011 [Member]	Dec. 31, 2012 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	11,178,000	0
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%
Common stock issued from exercise of rights offering, shares	6,032,153
Proceeds from issuance of stock, rights issue, gross	11,400,000
Proceeds from Issuance of Stock, Rights Issue, Net	$ 11,200,000