Debt - EBITDA Covenant Thresholds (Details) - Credit Agreement	9 Months Ended
	Oct. 31, 2017 USD ($)
July 31, 2017
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	$ (1,250,000)
October 31, 2017
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	(1,000,000)
January 31, 2018
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	(700,000)
April 30, 2018
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	(35,869)
July 31, 2018
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	414,953
October 31, 2018
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	1,080,126
January 31, 2019
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	1,634,130
April 30, 2019
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	1,842,610
July 31, 2019
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	2,657,362
October 31, 2019 and each fiscal quarter thereafter
Debt Instrument [Line Items]
Debt covenant, minimum EBITDA	$ 3,613,810