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Income Taxes - Unrecognized Tax Benefit Activity (Details) - USD ($)
$ in Thousands
9 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits [Roll Forward]    
Unrecognized tax benefits as of beginning of period $ 212 $ 210
Additions based on tax positions related to the current period positions 16 2
Unrecognized tax benefits as of end of period $ 228 $ 212