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, 2019
Jul. 31, 2018
Jul. 31, 2017
Schedule of restricted stock awards [Abstract]      
Outstanding at beginning of year (in Shares) 2,613 7,436 8,501
Outstanding at beginning of year $ 1.74 $ 4.45 $ 4.13
Awarded     $ 6.95
Awarded (in Shares)     4,250
Vested (in Shares) (986) (2,874) (5,140)
Vested $ (6.71) $ (5.20) $ (4.10)
Forfeited (in Shares)   (1,949) (175)
Forfeited   $ (5.18) $ (2.14)
Outstanding (non-vested) at end of year (in Shares) 1,627 2,613 7,436
Outstanding (non-vested) at end of year $ 5.14 $ 1.74 $ 4.45
Weighted average market value of awards granted during year     $ 6.95