Stock Option Plans and 401(k) Plan (Details 3)	12 Months Ended
Mar. 31, 2019 $ / shares shares
Number Outstanding \| shares	6,626,088
Weighted Average Remaining Years until Expiration	8 years 4 months 6 days
Weighted Average Exercise Price \| $ / shares	$ 1.48
Number Exercisable \| shares	4,303,972
Exercisable Weighted Average Exercise Price \| $ / shares	$ 1.53
1.16 [Member]
Number Outstanding \| shares	2,000,000
Weighted Average Remaining Years until Expiration	8 years 10 months 2 days
Weighted Average Exercise Price \| $ / shares	$ 1.16
Number Exercisable \| shares	1,312,493
Exercisable Weighted Average Exercise Price \| $ / shares	$ 1.16
1.21 to 1.27 [Member]
Number Outstanding \| shares	885,000
Weighted Average Remaining Years until Expiration	9 years 4 months 2 days
Weighted Average Exercise Price \| $ / shares	$ 1.27
Number Exercisable \| shares	419,529
Exercisable Weighted Average Exercise Price \| $ / shares	$ 1.27
1.50 [Member]
Number Outstanding \| shares	2,390,253
Weighted Average Remaining Years until Expiration	7 years 4 months 2 days
Weighted Average Exercise Price \| $ / shares	$ 1.5
Number Exercisable \| shares	1,699,753
Exercisable Weighted Average Exercise Price \| $ / shares	$ 1.5
1.52 to 1.99 [Member]
Number Outstanding \| shares	1,215,000
Weighted Average Remaining Years until Expiration	8 years 10 months 28 days
Weighted Average Exercise Price \| $ / shares	$ 1.62
Number Exercisable \| shares	777,058
Exercisable Weighted Average Exercise Price \| $ / shares	$ 1.59
2.20 to 3.80 [Member]
Number Outstanding \| shares	55,000
Weighted Average Remaining Years until Expiration	9 years 4 months 17 days
Weighted Average Exercise Price \| $ / shares	$ 2.35
Number Exercisable \| shares	14,304
Exercisable Weighted Average Exercise Price \| $ / shares	$ 3.67
8.00 to 15.00 [Member]
Number Outstanding \| shares	80,835
Weighted Average Remaining Years until Expiration	5 years 10 months 10 days
Weighted Average Exercise Price \| $ / shares	$ 8.54
Number Exercisable \| shares	80,835
Exercisable Weighted Average Exercise Price \| $ / shares	$ 8.54

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(iii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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