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Share-Based Compensation (Details 3) (Imaging Taiwan [Member], USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Imaging Taiwan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Shares, Balance 355,747 1,877,079 1,939,490
Number of Shares, Granted     567,689
Number of Shares, Vested (181,448) (699,967) (601,129)
Number of Shares, Forfeited (143,160) (821,365) (28,971)
Number of Shares, Balance 31,139 355,747 1,877,079
Weighted Average Grant Date Fair Value, Balance $ 0.72 $ 0.72 $ 0.72
Weighted Average Grant Date Fair Value, Granted     $ 0.72
Weighted Average Grant Date Fair Value, Vested $ 0.72 $ 0.72 $ 0.72
Weighted Average Grant Date Fair Value, Forfeited $ 0.72 $ 0.72 $ 0.72
Weighted Average Grant Date Fair Value, Balance $ 0.72 $ 0.72 $ 0.72