Acquisitions - Narrative (Details) - USD ($)			12 Months Ended
	Feb. 03, 2014	Oct. 25, 2013	Jan. 31, 2016	Jan. 31, 2015
Business Acquisition [Line Items]
Cash paid			$ 0	$ 6,058,225
Royalty liability			$ 2,291,888	$ 2,385,826
Montefiore Medical Center
Business Acquisition [Line Items]
Proprietary lease term		15 years
Cash paid		$ 3,000,000
Periodic royalty payment term		6 years 6 months
Ongoing royalty payments		$ 3,000,000
Unibased
Business Acquisition [Line Items]
Cash paid	$ 6,118,000
Total purchase price	6,500,000
Proceeds received from escrow	$ 750,000