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 - $ / shares
12 Months Ended
Jul. 31, 2016
Jul. 31, 2015
Jul. 31, 2014
Schedule of restricted stock awards [Abstract]      
Outstanding at beginning of year (in Shares) 21,501 42,502 125,133
Outstanding at beginning of year $ 8.84 $ 5.74 $ 3.45
Awarded   $ 4.75 $ 4.77
Awarded (in Shares)   4,250 11,500
Vested (in Shares) (11,500) (19,418) (82,971)
Vested $ (2.83) $ (2.83) $ (2.70)
Forfeited (in Shares) (1,500) (5,833) (11,160)
Forfeited $ (2.86) $ (3.22) $ (1.70)
Outstanding (non-vested) at end of year (in Shares) 8,501 21,501 42,502
Outstanding (non-vested) at end of year $ 4.13 $ 8.84 $ 5.74
Weighted average market value of awards granted during year   $ 4.75 $ 4.77