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Stock-Based Compensation (Details) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
Nov. 30, 2020
Nov. 30, 2019
Apr. 30, 2021
Jul. 31, 2021
Jul. 31, 2020
Stock-Based Compensation (Details) [Line Items]          
Income tax benefit (in Dollars)       $ (202,000) $ 15,000
Stock option grant date     10 years    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value (in Dollars per share)     $ 4    
Compensation expense (in Dollars)       652,000 492,000
Stock option proceeds (in Dollars)       $ 3,978,000 $ 109,000
Stock option grants forfeited       13,000 126,000
Unrecognized compensation expense (in Dollars)       $ 774,000  
Weighted-average period       3 years 73 days  
Aggregate fair value (in Dollars)       $ 350,000  
Aggregate grant date fair value (in Dollars)       $ 30,000  
Restricted stock, description         the Company granted 30,534 restricted shares of its Class B common stock, which vested over a six-month period, to its interim Chief Executive Officer at a grant date fair value of $1.97 per share. The Company also granted 1,411 restricted shares of its Class B common stock, which vested over three years, to Chairman of the Board at a grant date fair value of $1.97 per share.
Non-vested restricted shares       127,300  
Compensation expense (in Dollars)       $ 288,000  
Weighted-average period       2 years 146 days  
Amount of share purchase (in Dollars)       $ 14,435,000 $ 2,109,000
Vesting period, description     vest over a three-year or four -year period.    
2016 Incentive Plan [Member]          
Stock-Based Compensation (Details) [Line Items]          
Income tax benefit (in Dollars)       $ 105,000 0
Deferred Stock Units [Member]          
Stock-Based Compensation (Details) [Line Items]          
Shares purchased       5,625  
Unrecognized compensation expense (in Dollars)         $ 144,000
Amount of share purchase (in Dollars)       $ 8,000  
Number of non-executive employees, description         In fiscal 2020, the Compensation Committee approved the grant of 92,544 Deferred Stock Units (DSUs) to 13 of its non-executive employees based in Norway and Lithuania.
DSUs aggregate (in Dollars)       $ 39,000  
Weighted average period       2 years  
Class B Common Stock [Member]          
Stock-Based Compensation (Details) [Line Items]          
Shares purchased   230,000   12,005 18,441
Aggregate shares   1,271,000      
Options granted       188,849 207,996
Compensation expense (in Dollars)       $ 774,000 $ 265,000
Stock option proceeds (in Dollars)       $ 873,261 $ 11,571
Shares issued       559,840 86,197
Restricted shares       92,593  
Class B Common Stock [Member] | Non-employee Board of Directors [Member]          
Stock-Based Compensation (Details) [Line Items]          
Restricted shares       10,869 34,066
Per share (in Dollars per share)       $ 8.22 $ 1.41
Class B Common Stock [Member] | Mr.Howard Jonas [Member] | Mr.Elliot Gibber [Member]          
Stock-Based Compensation (Details) [Line Items]          
Restricted shares       10,619  
Class B Common Stock [Member] | 2016 Incentive Plan [Member]          
Stock-Based Compensation (Details) [Line Items]          
Options granted       212,000  
Number of Employees, Total [Member]          
Stock-Based Compensation (Details) [Line Items]          
Amount of share purchase (in Dollars)       $ 18,000 $ 29,000
2016 Incentive Plan [Member] | Class B Common Stock [Member]          
Stock-Based Compensation (Details) [Line Items]          
Inclusive of the additional 250,000        
Aggregate of shares 1,521,000