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Stock-Based Compensation (Details Narrative) - USD ($)
 1 Months Ended 12 Months Ended
Jan. 05, 2022
Dec. 15, 2021
Jan. 05, 2021
Dec. 31, 2020
Jan. 06, 2020
Dec. 12, 2019
Sep. 30, 2022
Jun. 30, 2022
Apr. 30, 2022
Feb. 28, 2022
Sep. 30, 2021
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Proceeds from Stock Options Exercised                       $ 137,000 $ 687,000 $ 276,000
Options to purchase shares of common stock                       1,010,000    
Exercise price of options                       $ 13.72 $ 14.89  
Aggregate exercise price of options                       $ 137,000 $ 687,000 276,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period                       152,000    
Number of deferred stock units granted                       4,000    
Stock based compensation                       $ 1,930,000 1,490,000 3,856,000
Net2phone, Inc. [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Common stock outstanding, percentage       10.00%                    
Aggregate estimated fair value on grant date recognized over the vesting period       $ 200,000                    
Number of restricted shares issued       50                    
Grant of restricted equity description                       The restricted shares will vest if: (a) for any fiscal quarter of net2phone 2.0 between November 1, 2020 and October 31, 2023, net2phone 2.0 records subscription revenue that is at least $18 million, and (b) as of October 31, 2023, net2phone 2.0’s valuation is $100 million or more. The restricted shares will also vest in the event, prior to October 31, 2023, net2phone 2.0 or its assets are sold at an equity valuation and on a cash-free basis of $100 million or more, regardless of whether the revenue threshold was satisfied prior thereto. The restricted shares entitle each grantee to proceeds only on a sale, spin-off, initial public offering, or other monetization of net2phone 2.0 and have protection from dilution for the first $15 million invested in net2phone 2.0 following the grant    
Deferred Stock Units [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value                       $ 1,600,000 1,500,000 1,100,000
Number of deferred stock units granted                       1,333    
[custom:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingPeriod]                       Sep. 22, 2023    
Restricted Stock [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Vesting description                       Share awards generally vest on a graded basis over three years of service.    
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount                       $ 100,000    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition                       1 year 4 months 24 days    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value                       $ 1,000,000.0 $ 200,000 300,000
Restricted Stock [Member] | National Retail Solutions [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Aggregate estimated fair value on grant date recognized over the vesting period               $ 3,300,000            
Deferred Stock Units [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount                       $ 11,000    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition                       8 months 12 days    
Equity Option [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Vesting description                       Option awards generally vest on a graded basis over three years of service and have ten-year contractual terms    
Options granted                       0 0  
Proceeds from Stock Options Exercised                       $ 100,000 $ 700,000 $ 300,000
Options to purchase shares of common stock                       1,010,000 81,041 32,551
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value                       $ 19,700,000 $ 200,000 $ 16,000
Common Class B [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Additional number of shares authorized   175,000       400,000                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized                       1,700,000    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant                       100,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period                       198,000    
Number of deferred stock units granted                       6,000    
Common Class B [Member] | Deferred Stock Units [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Share-based Compensation Arrangement by Share-based Payment Award, Description                       the DSUs were eligible for vesting in three equal amounts on each of January 6, 2020, January 5, 2021, and January 5, 2022. The number of shares issuable on each vesting date varied between 50% to 200% of the number of DSUs that vested on that vesting date, depending on the market price for the underlying Class B common stock on the vesting date relative to the market price at the time of the grant.    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 301,296   283,838   100,284   1,333       1,334      
Number of deferred stock units granted                       4,000    
Common Class B [Member] | Howard S Jonas [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Options to purchase shares of common stock                 1,000,000.0          
Options grant date                 May 02, 2017          
Exercise price of options                 $ 14.93          
Option expiration date                 May 01, 2022          
Number of shares used as options                 528,635          
Aggregate exercise price of options                 $ 14,900,000          
Stock option exercised, shares                 137,364          
Stock option exercised, value                 $ 3,900,000          
NRS Common Class B [Member] | National Retail Solutions [Member]                            
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                            
Common stock outstanding, percentage               1.20%   0.40%        
Stock based compensation                   $ 1,200,000