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Stock-based Compensation Stock Purchase Right Activity (Details) - 3 months ended Jun. 30, 2015 - $ / shares
Total
Stock-based Compensation Stock Purchase Right Activity Details  
Balance at beginning of year 223,835
Granted 0
Vested (28,760)
Forfeited (1,875)
Balance at end of year 193,200
Weighted-average grant date fair market value, beginning balance $ 5.92
Weighted-average grant date fair market value of restricted stock rights granted 0
Weighted-average grant date fair market value, released during period 4.42
Weighted-average grant date fair market value, forfeited during period 11.26
Weighted-average grant date fair market value, ending balance $ 6.09
Weighted-average remaining contractual term, in years, ending balance 1 year 113 days