Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2016
Accounting Policies [Abstract]
Net earnings (loss)	$ 3,489	$ (1,930,472)	$ (3,137,084)	$ (4,142,381)
Less: deemed dividends on Series A Preferred Stock	0	(72,710)	0	(875,935)
Net earnings (loss) attributable to common stockholders	$ 3,489	$ (2,003,182)	$ (3,137,084)	$ (5,018,316)
Weighted average shares outstanding used in basic per common share computations (in shares)	19,985,822	19,645,521	19,838,691	19,477,538
Restricted stock and Series A Convertible Preferred Stock (in shares)	3,082,601	0	0	0
Number of shares used in diluted per common share computation (in shares)	23,068,423	19,645,521	19,838,691	19,477,538
Basic net earnings (loss) per common stock (in dollars per share)	$ 0.00	$ (0.10)	$ (0.16)	$ (0.26)
Diluted net earnings (loss) per common stock (in dollars per share)	$ 0.00	$ (0.10)	$ (0.16)	$ (0.26)