Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Total	Common stock	Additional paid in capital	Accumulated deficit
Stockholders' equity, beginning balance (in shares) at Jan. 31, 2016		18,783,540
Stockholders' equity, beginning balance at Jan. 31, 2016	$ 16,024,128	$ 187,836	$ 79,700,577	$ (63,864,285)
Statement of Changes in stockholders' equity
Stock issued pursuant to Employee Stock Purchase Plan (in shares)		67,667.00
Stock issued pursuant to Employee Stock Purchase Plan	76,582	$ 676	75,906
Restricted stock issued (in shares)		858,225
Restricted stock issued	0	$ 8,582	(8,582)
Surrender of stock upon vesting of restricted stock to satisfy tax withholding obligations (in shares)		(8,241.00)
Surrender of stock upon vesting of restricted stock to satisfy tax withholding obligations	(11,702)	$ (82)	(11,620)
Restricted stock forfeited (in shares)		(5,800.00)
Restricted stock forfeited	0	$ (58)	58
Share-based compensation expense	1,787,367		1,787,367
Deemed dividends on Series A Preferred Stock	(875,935)		(875,935)
Net loss	(5,161,566)			(5,161,566)
Stockholders' equity, ending balance (in shares) at Jan. 31, 2017		19,695,391
Stockholders' equity, ending balance at Jan. 31, 2017	11,838,874	$ 196,954	80,667,771	(69,025,851)
Statement of Changes in stockholders' equity
Stock issued pursuant to Employee Stock Purchase Plan (in shares)		47,282.00
Stock issued pursuant to Employee Stock Purchase Plan	44,513	$ 473	44,040
Restricted stock issued (in shares)		295,337.00
Restricted stock issued		$ 2,953	(2,953)
Surrender of stock upon vesting of restricted stock to satisfy tax withholding obligations (in shares)		(32,033.00)
Surrender of stock upon vesting of restricted stock to satisfy tax withholding obligations	(41,813)	$ (320)	(41,493)
Share-based compensation expense	1,109,241		1,109,241
Net loss	(3,099,214)			(3,099,214)
Stockholders' equity, ending balance (in shares) at Jan. 31, 2018		20,005,977
Stockholders' equity, ending balance at Jan. 31, 2018	$ 9,851,601	$ 200,060	$ 81,776,606	$ (72,125,065)