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Financing Instruments - Chairman of the Board Commitment (Details) - USD ($)
3 Months Ended
Apr. 30, 2016
Mar. 14, 2016
Nov. 12, 2015
Dec. 31, 2015
Dec. 10, 2013
Board of Directors Chairman [Member]          
Debt Instrument [Line Items]          
Granted in period (in shares)     500,000    
Share price (in USD per share)   $ 0.40 $ 0.294    
Term of stock option acquisition rights (years)   3 years 8 years    
Grant date fair value of options awards     $ 47,000    
Repayments of related party debt       $ 500,000  
Repurchase of principal       $ 150,000  
Scenario, Forecast [Member]          
Debt Instrument [Line Items]          
Repayments of debt $ 2,000,000        
Secured Debt [Member] | Note Purchase Agreement [Member]          
Debt Instrument [Line Items]          
Maximum borrowing capacity         $ 7,200,000.0