Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
Beginning balance, value at Mar. 31, 2015	$ 400,000	$ 121,866,061	$ (99,937,075)	$ 22,328,986
Beginning balance, shares at Mar. 31, 2015	39,999,984
Class of Stock [Line Items]
Issuance of common stock under employee stock purchase plan, value	$ 629	38,748		39,377
Issuance of common stock under employee stock purchase plan, shares	62,932
Issuance of common stock under registered direct offering, value	$ 80,000	5,698,463		5,778,463
Issuance of common stock under registered direct offering, shares	8,000,000
Issuance of common stock under stock bonus plan, value	$ 3,771	11,805		15,576
Issuance of common stock under stock bonus plan, shares	377,047
Common stock used for tax withholdings, value	$ (1,097)	(91,494)		(92,591)
Common stock used for tax withholdings, shares	(109,677)
Compensation expense from employee and director stock option and common stock grants		580,278		580,278
Net loss			(6,938,351)	(6,938,351)
Ending balance, value at Mar. 31, 2016	$ 483,303	128,103,861	(106,875,426)	$ 21,711,738
Ending balance, shares at Mar. 31, 2016	48,330,286			48,330,286
Class of Stock [Line Items]
Issuance of common stock under employee stock purchase plan, value	$ 603	30,744		$ 31,347
Issuance of common stock under employee stock purchase plan, shares	60,325
Issuance of common stock under stock bonus plan, value	$ 1,462	(1,462)
Issuance of common stock under stock bonus plan, shares	146,155
Common stock used for tax withholdings, value	$ (175)	(10,503)		(10,678)
Common stock used for tax withholdings, shares	(17,453)
Compensation expense from employee and director stock option and common stock grants		287,293		287,293
Net loss			(13,017,508)	(13,017,508)
Ending balance, value at Dec. 31, 2016	$ 485,193	$ 128,409,933	$ (119,892,934)	$ 9,002,192
Ending balance, shares at Dec. 31, 2016	48,519,313			48,519,313