Income Taxes - Components of Income Tax Expense (Details) - USD ($)	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Current tax (expense) benefit:
Federal	$ 0	$ 131,816
State	(17,578)	34,611
Total current tax expense	(17,578)	166,427
Deferred tax benefit:
Federal	8,838	663,681
State	737	56,901
Total deferred tax benefit (expense)	9,575	720,582
Income tax (expense) benefit	$ (8,003)	$ 887,009