Annual report pursuant to Section 13 and 15(d)

Summary of Selected Quarterly Financial Data (unaudited) (Details) - Schedule of Unaudited quarterly financial data

v2.4.0.8
Summary of Selected Quarterly Financial Data (unaudited) (Details) - Schedule of Unaudited quarterly financial data (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Jul. 31, 2013
Apr. 30, 2013
Jan. 31, 2013
Oct. 31, 2012
Jul. 31, 2012
Apr. 30, 2012
Jan. 31, 2012
Oct. 31, 2011
Jul. 31, 2013
Jul. 31, 2012
Jul. 31, 2011
Schedule of Unaudited quarterly financial data [Abstract]                      
Total revenues $ 23,269 $ 22,598 $ 22,210 $ 25,630 $ 26,408 $ 25,949 $ 24,973 $ 25,753      
Gross profit 9,446 9,048 8,642 11,736 11,673 12,056 11,579 11,802      
Loss before income taxes (3,532) (5,808) (5,854) (3,755) (29,074) (3,445) (4,076) (4,326) (18,949) (40,921) (12,823)
Net loss $ (3,102) $ (5,770) $ (5,674) $ (3,691) $ (27,143) $ (3,411) $ (4,221) $ (4,494) $ (18,237) $ (39,269) $ (12,960)
Basic and diluted loss per common share (in Dollars per share) $ (0.08) $ (0.15) $ (0.14) $ (0.09) $ (0.69) $ (0.09) $ (0.11) $ (0.12) $ (0.46) $ (1.01) $ (0.34)