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, 2017
Jul. 31, 2016
Jul. 31, 2015
Schedule of restricted stock awards [Abstract]      
Outstanding at beginning of year (in Shares) 8,501 21,501 42,502
Outstanding at beginning of year $ 4.13 $ 8.84 $ 5.74
Awarded $ 6.95   $ 4.75
Awarded (in Shares) 4,250   4,250
Vested (in Shares) (5,140) (11,500) (19,418)
Vested $ (4.10) $ (2.83) $ (2.83)
Forfeited (in Shares) (175) (1,500) (5,833)
Forfeited $ (2.14) $ (2.86) $ (3.22)
Outstanding (non-vested) at end of year (in Shares) 7,436 8,501 21,501
Outstanding (non-vested) at end of year $ 4.45 $ 4.13 $ 8.84
Weighted average market value of awards granted during year $ 6.95   $ 4.75