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Stock Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
MSU [Member]
Dec. 31, 2015
Minimum [Member]
Dec. 31, 2015
Maximum [Member]
Loan Agreement [Line Items]          
Share-based Compensation $ 1,705 $ (740)      
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted 148,301   64,199    
Share Based Compensation Non Option Equity Instruments Granted Weighted Average Exercise Price $ 12.20        
Equity Share Payout Range       0 94,074