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Derivative Liability (Tables)
 12 Months Ended
Mar. 31, 2017
Derivative Instruments And Hedging Activities Disclosure [Abstract]  
Assumptions Used to Value Derivative Liabilities Upon Issuance of Warrants at End of Each Reporting Period

The derivative liabilities were valued upon issuance of the warrants and at the end of each reporting period using a Monte Carlo valuation model with the following assumptions:

 

 

 

March 31,

2016

 

Closing price per share of common stock

 

$

2.17

 

Exercise price per share

 

$

1.00

 

Expected volatility

 

 

73.35

%

Risk-free interest rate

 

 

0.59

%

Dividend yield

 

 

—

 

Remaining expected term of underlying securities (years)

 

 

0.96