Private Placement Investment - Series A Convertible Preferred Stock Narrative (Details) (USD $)	12 Months Ended			0 Months Ended
	Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013	Aug. 16, 2012	Jan. 31, 2012	Nov. 02, 2012
Class of Stock [Line Items]
Period over which share price is evaluated	10 days
Accretion of Preferred Stock discount	$ (47,552)	$ (4,327)	$ (111,583)
Loss upon conversion	0	0	5,970,002
Annual volatility	58.24%
Risk-free rate	1.07%
Redemption price per share (USD per share)		$ 3.00
Shares converted	1,050,000
Amount converted	0	(3,150,000)	0
Common stock
Class of Stock [Line Items]
Market Price, date of agreement				3.82
Series A Preferred Stock
Class of Stock [Line Items]
Accretion of Preferred Stock discount	1,038,310		176,048
Convertible redeemable preferred stock, shares outstanding	2,949,995	2,949,995	3,999,995		0
Shares converted		1,050,000
Amount converted		(3,150,000)
Convertible Notes to Preferred Stock | Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (USD per share)						$ 5.80
Loss upon conversion	5,913,000
Issuance of shares at redemption value for conversion of notes payable						9,183,000
Carrying value and unamortized deferred financing costs						3,270,000
Difference between fair value and redemption value recorded as additional paid in capital						4,433,000
Annual volatility	75.00%
Risk-free rate	0.80%
Dividend yield	0.00%
Conversion basis	1
Private Placement
Class of Stock [Line Items]
Common shares issued for convertible note and accrued interest (in shares)	1,583,210			1,583,210
Private Placement | Series A Preferred Stock
Class of Stock [Line Items]
New issuance of series A convertible preferred stock				2,416,785
Preferred stock, par value (USD per share)				3.00
Share price (USD per share)		$ 8.00		3.00
Period over which trade volume is evaluated	60 days
Average daily trading volume for period (in shares)	100,000
Stock price at time of conversion (USD per share)	$ 3.00
Preferred stock, discount on shares		4,410,000		1,020,000
Beneficial conversion feature			2,686,000
Accretion of Preferred Stock discount	1,038,000	1,180,904	176,000
Annual volatility				75.00%
Risk-free rate				0.90%
Dividend yield				0.00%
Conversion basis				1
Private Placement | Convertible Subordinated Notes Payable
Class of Stock [Line Items]
Convertible notes payable				5,699,577		5,699,577
Private Placement | Convertible Notes to Preferred Stock | Series A Preferred Stock
Class of Stock [Line Items]
Aggregate redemption value						$ 4,750,000
Minimum | Convertible Notes to Preferred Stock | Series A Preferred Stock
Class of Stock [Line Items]
Stock price at time of conversion (USD per share)	$ 3.00
Minimum | Private Placement | Series A Preferred Stock
Class of Stock [Line Items]
Stock price at time of conversion (USD per share)				3.00
Maximum | Convertible Notes to Preferred Stock | Series A Preferred Stock
Class of Stock [Line Items]
Stock price at time of conversion (USD per share)	$ 8.00
Maximum | Private Placement | Series A Preferred Stock
Class of Stock [Line Items]
Stock price at time of conversion (USD per share)				8.00