Quarterly report pursuant to Section 13 or 15(d)

Description of Business and Significant Accounting Policies - Summary of option activity (Details)

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Description of Business and Significant Accounting Policies - Summary of option activity (Details) (USD $)
 3 Months Ended 12 Months Ended
Jul. 31, 2013
Apr. 30, 2013
Summary of option activity, Shares    
Balance April 30, 2013 311,575  
Granted 0  
Exercised 0  
Expired 0  
Balance July 31, 2013 311,575 311,575
Exercisable July 31, 2013 275,658  
Expected to vest July 31, 2013 296,000  
Summary of option activity, Weighted average exercise price    
Balance April 30, 2013 $ 12.40  
Granted     
Exercised     
Expired     
Balance July 31, 2013 $ 12.40 $ 12.40
Exercisable July 31, 2013 $ 13.53  
Expected to vest July 31, 2013 $ 12.40  
Summary of option activity, Additional disclosures    
Balance, Weighted average remaining contractual life 4 years 9 months 7 days 4 years 9 months 7 days
Exercisable July 31, 2013, Weighted average remaining contractual life 4 years 4 months 20 days [1]  
Expected to vest July 31, 2013, Weighted average remaining contractual life 4 years 9 months 7 days [1]  
Balance April 30, 2013, Aggregate intrinsic value $ 15,750 [2]  
Granted, Aggregate intrinsic value    [2]  
Exercised, Aggregate intrinsic value    [2]  
Expired, Aggregate intrinsic value    [2]  
Balance July 31, 2013, Aggregate intrinsic value $ 15,750 [2] $ 15,750 [2]
Closing price of common stock on NASDAQ Stock Market $ 3.07  
[1] This amount represents the weighted average remaining contractual life of stock options in years.
[2] This amount represents the difference between the exercise price and $3.07, the closing price of Dataram common stock on July 31, 2013 as reported on the NASDAQ Stock Market, for all in-the-money options outstanding and all the in-the-money shares exercisable. There were no in-the-money options at January 31, 2013.