Capital Stock (Tables)

12 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of Black Scholes option pricing model

Assumption:	Pre-reset			Post-reset
Market price per share	$	1.17		$	1.17
Exercise price per share	$	1.82		$	0.001
Risk-free interest rate		2.09	%		2.09	%
Remaining contractual term in years		4.73			4.73
Volatility		97.8	%		97.8	%
Dividend rate		0.0	%		0.0	%
Number of warrant shares		503,641			503,641
Fair value per share	$	0.77		$	1.17

Schedule of outstanding warrants to purchase shares

Exercise Price		Expiration		Warrants Outstanding at		Warrants Exercisable at
per Share		Date		March 31, 2019		March 31, 2019
$	1.50		11/30/2021 to 12/13/2022		14,335,200		13,857,200
$	1.59		2/28/2022		292,000		—
$	1.69		2/28/2022		12,000		—
$	1.70		10/5/2022		182,434		182,434
$	1.75		2/28/2022		23,800		—
$	1.80		10/10/2022		115,385		115,385
$	1.82		3/7/2023		1,388,931		1,388,931
$	2.00		4/30/2021		523,573		523,573
$	2.20		10/19/2022		106,383		106,383
$	2.24		10/16/2022		16,737		16,737
$	3.51		12/31/2021		50,000		50,000
$	4.50		9/26/2019		25,000		25,000
$	5.30		5/16/2021		2,705,883		2,705,883
$	6.00		9/26/2019 to 11/30/2019		97,750		97,750
$	7.00		1/11/2020 to 3/3/2023		1,262,878		1,262,878
$	8.00		3/25/2021		185,000		185,000
$	10.00		1/11/2020		20,000		20,000
$	20.00		9/15/2019		110,448		110,448
					21,453,402		20,647,602

Schedule of reserved shares of common stock for future issuance

Upon exchange of all shares of Series A Preferred currently issued and outstanding (1)	750,000
Upon exchange of all shares of Series B Preferred currently issued and outstanding (2)	5,096,738
Upon exchange of all shares of Series C Preferred currently issued and outstanding (3)	2,318,012
Pursuant to warrants to purchase common stock:
Subject to outstanding warrants	21,453,402
Pursuant to stock incentive plan:
Subject to outstanding options under the Amended and Restated 2016 Stock Incentive  Plan	6,626,088
Available for future grants under the Amended and Restated 2016 Stock Incentive Plan	2,607,162
	9,233,250
Total	38,851,402
(1) Assumes exchange under the terms of the October 11, 2012 Note Exchange and Purchase Agreement
(2) Assumes exchange under the terms of the Certificate of Designation of the Relative Rights and Preferences of the Series B 10% Convertible Preferred Stock, effective May 5, 2015; includes 3,936,498 shares of common stock issuable in payment of dividends on Series B Preferred upon conversion
(3) Assumes exchange under the terms of the Certificate of Designation of the Relative Rights and Preferences of the Series C Convertible Preferred Stock, effective January 25, 2016