Stock Option and bonus plans (Details 2)	12 Months Ended
Mar. 31, 2016 $ / shares
Expected dividend yield	0.00%
Volatility	73.63%
Minimum [Member]
Risk-free interest rate	1.63%
Expected life (years)	4 years 8 months 19 days
Fair value of options at grant date per share	$ 0.81
Maximum [Member]
Risk-free interest rate	2.36%
Expected life (years)	9 years 8 months 19 days
Fair value of options at grant date per share	$ 1.08

Agreed upon price for the exchange of the underlying asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

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