Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

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Stockholders' Equity (Details) - USD ($)
3 Months Ended 9 Months Ended
Oct. 31, 2016
Oct. 31, 2015
Apr. 30, 2016
Jul. 31, 2016
Dec. 31, 2014
Stockholders' Equity Note [Abstract]          
Common Stock, Par or Stated Value Per Share (in Dollars per share) $ 0.01   $ 0.01 $ 0.01  
Maximum Offering Price Under Sales Agreement     $ 20,000,000   $ 20,000,000
Percentage of Commission Payable on Equity Offering 3.00%        
Excess Tax Benefit from Share-based Compensation, Financing Activities $ 0 $ 0      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options $ 600,000        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 13 months        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 100,000        
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Outstanding Weighted Average Remaining Contractual Terms     13 months    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value $ 8,000 $ 21,000      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares) 823,000