Income Taxes - Schedule of Deferred Tax Assets and Tax Carryforwards (Details) - USD ($)	Jan. 31, 2018	Jan. 31, 2017
Deferred tax assets:
Allowance for doubtful accounts	$ 91,360	$ 72,886
Deferred revenue	154,574	282,112
Accruals	71,286	120,165
Net operating loss carryforwards	10,617,120	15,141,861
Stock compensation expense	235,920	501,120
Property and equipment	108,537	132,934
AMT credit	0	102,144
R&D credit	1,144,058	1,050,100
Other	116,603	106,833
Total deferred tax assets	12,539,458	17,510,155
Valuation allowance	(11,812,860)	(16,318,124)
Net deferred tax assets	726,598	1,192,031
Deferred tax liabilities:
Definite-lived intangible assets	(726,598)	(1,192,031)
Total deferred tax liabilities	(726,598)	(1,192,031)
Net deferred tax liabilities	$ 0	$ 0