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Stock-Based Compensation (Tables)
 12 Months Ended
Jul. 31, 2019
Share-based Payment Arrangement [Abstract]  
Schedule of risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant
Year ended July 31  2017 
ASSUMPTIONS     
Average risk-free interest rate   1.82%
Expected dividend yield   5.09%
Expected volatility   40.0%
Expected term   4.0 years 
Weighted-average grant date fair value  $3.26 
Schedule of stock option activity
   Number of
Options
(in thousands)		   Weighted-
Average
Exercise
Price		   Weighted-
Average
Remaining
Contractual
Term (in years)		   Aggregate
Intrinsic Value
(in thousands)		 
Outstanding at July 31, 2018   1,243   $14.23                               
Granted   —    —           
Exercised   —    —           
Cancelled / Forfeited   (20)   13.72           
OUTSTANDING AT JULY 31, 2019   1,223   $14.23    3.0   $— 
EXERCISABLE AT JULY 31, 2019   861   $14.15    3.0   $— 
Schedule of grants of restricted shares of class B common stock
(in thousands)  Number of
Non-vested
Shares		   Weighted-
Average
Grant-
Date Fair
Value		 
Non-vested shares at July 31, 2018   49   $16.28 
Granted   208    4.41 
Vested   (51)   14.37 
Forfeited   —    — 
NON-VESTED SHARES AT JULY 31, 2019   206   $4.84