Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Mar. 31, 2016
Assets and liabilities measured at fair value on a recurring basis and their related valuation inputs
Contingent consideration payable	$ 0	$ 311
Recurring [Member] \| Cash and cash equivalents [Member]
Assets and liabilities measured at fair value on a recurring basis and their related valuation inputs
Money market funds	17,129	10,043
Recurring [Member] \| Accrued Liabilities [Member]
Assets and liabilities measured at fair value on a recurring basis and their related valuation inputs
Contingent consideration payable		311
Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Cash and cash equivalents [Member]
Assets and liabilities measured at fair value on a recurring basis and their related valuation inputs
Money market funds	$ 17,129	10,043
Recurring [Member] \| Unobservable Inputs (Level 3) [Member] \| Accrued Liabilities [Member]
Assets and liabilities measured at fair value on a recurring basis and their related valuation inputs
Contingent consideration payable		$ 311