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Equity (Details Narrative) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Mar. 31, 2024
Feb. 21, 2024
Dec. 21, 2023
Dec. 13, 2023
Jan. 31, 2024
Jan. 31, 2024
Jan. 31, 2023
Jan. 31, 2024
Jan. 31, 2023
Class of Stock [Line Items]                  
Received cash from exercise of stock options               $ 172,000 $ 172,000
Stock repurchase program, remaining number of shares authorized to be repurchased         4,600,000 4,600,000   4,600,000  
Stock based compensation expense [1]           $ 2,487,000 $ 1,286,000 $ 3,258,000 1,858,000
Exchange of outstanding shares percentage         125.00%        
Exchange of NRS shares for Class B common stock              
net2phone 2.0, Inc. [Member]                  
Class of Stock [Line Items]                  
Restricted common stock with holding employees outstanding shares percentage         4.50%        
Amended And Restated Employment Agreement [Member] | Selling, General and Administrative Expenses [Member]                  
Class of Stock [Line Items]                  
Stock based compensation expense           1,400,000   1,400,000  
Amended And Restated Employment Agreement [Member] | Deferred Stock Units [Member]                  
Class of Stock [Line Items]                  
Total unrecognized compensation         $ 400,000 400,000   400,000  
Amended And Restated Employment Agreement [Member] | Contingent Bonus [Member]                  
Class of Stock [Line Items]                  
Total unrecognized compensation         $ 2,000,000.0 $ 2,000,000.0   $ 2,000,000.0  
Common Class B [Member]                  
Class of Stock [Line Items]                  
Exchange of outstanding shares percentage         125.00%        
Number of shares during period         192,433        
Exchange of NRS shares for Class B common stock         $ 100,000        
Common Class B [Member] | net2phone 2.0, Inc. [Member]                  
Class of Stock [Line Items]                  
Vested shares         500,000        
Shares granted         50,000        
Offsetting income tax withholding liability         $ 3,600,000        
Increase in non controlling interests         53,000        
Decrease in additional paid in capital         $ 3,610,000        
Common Class B [Member] | Deferred Stock Units [Member]                  
Class of Stock [Line Items]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Description               The number of shares that will be issuable on each vesting date will vary between 50% to 200% of the number of DSUs that vest on that vesting date, depending on the market price for the underlying Class B common stock on the vesting date relative to the base price approved by the Compensation Committee of the Company’s Board of Directors of $25.45 per share (which was based on the market price at the time of the initial grants under this program).  
Common Class B [Member] | Deferred Stock Units [Member] | Subsequent Event [Member]                  
Class of Stock [Line Items]                  
Vested shares   53,706              
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number   147,540              
Common Class B [Member] | 2024 Equity Incentive Plan [Member]                  
Class of Stock [Line Items]                  
Number of shares, grant       250,000          
Common Class B [Member] | 2015 Stock Option and Incentive Plan [Member]                  
Class of Stock [Line Items]                  
Additional number of shares authorized       250,000          
Received cash from exercise of stock options               $ 200,000 $ 200,000
Shares issued               12,500 12,500
Common Class B [Member] | Amended And Restated Employment Agreement [Member] | Deferred Stock Units [Member] | net2phone 2.0, Inc. [Member]                  
Class of Stock [Line Items]                  
Shares granted     50,000            
Common Class B [Member] | Amended And Restated Employment Agreement [Member] | Bill Pereira [Member] | Deferred Stock Units [Member]                  
Class of Stock [Line Items]                  
Shares granted     23,500            
Class B Common Stock [Member]                  
Class of Stock [Line Items]                  
Aggregate repurchased shares         8,000,000.0 8,000,000.0   8,000,000.0  
Class B common stock shares repurchased               135,261 203,436
Aggregate purchase price of shares repurchased               $ 3,200,000 $ 5,000,000.0
Class B Common Stock [Member] | Employees [Member]                  
Class of Stock [Line Items]                  
Class B common stock shares repurchased               654 13,403
Aggregate purchase price of shares repurchased               $ 15,000 $ 300,000
Class A And Class B Common Stock[Member] | Subsequent Event [Member]                  
Class of Stock [Line Items]                  
Cash dividend per share $ 0.05                
Dividend paid date Mar. 27, 2024                
Dividend record date Mar. 19, 2024                
[1] Stock-based compensation included in selling, general and administrative expenses