Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details) - Schedule of restricted stock awards

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Stockholders' Equity (Details) - Schedule of restricted stock awards (USD $)
12 Months Ended
Jul. 31, 2014
Jul. 31, 2013
Jul. 31, 2012
Schedule of restricted stock awards [Abstract]      
Outstanding at beginning of year (in Shares) 125,133 257,583 311,952
Outstanding at beginning of year $ 3.45 $ 3.58 $ 4.84
Awarded $ 4.77 $ 1.77 $ 2.51
Awarded (in Shares) 11,500 39,000 144,143
Vested (in Shares) (82,971) (157,783) (174,638)
Vested $ (2.70) $ (3.23) $ (4.85)
Forfeited (in Shares) (11,160) (13,667) (23,874)
Forfeited $ (1.70) $ (3.59) $ (4.30)
Outstanding (non-vested) at end of year (in Shares) 42,502 125,133 257,583
Outstanding (non-vested) at end of year $ 5.74 $ 3.45 $ 3.58
Weighted average market value of awards granted during year $ 4.77 $ 1.77 $ 2.51