Cash and Cash Equivalents and Investments in Marketable Securities - Additional Information (Details)	12 Months Ended
Mar. 31, 2019 USD ($)
Marketable Securities [Abstract]
Private placement share redemption percentage	1.00%
Private placement share redemption amount	$ 250,000
Share redemption period	90 days

Available for sale maximum securities share redemption time period; day limit on repurchases after redemption.

No definition available.

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