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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Summary Of Significant Accounting Policies            
Deferred revenue recognized to revenue       $ 6,262,000    
Deferred revenue recognized through the period (as a percent)           89.00%
Amortization of Deferred Sales Commissions $ 26,000   $ 46,000 91,000 $ 145,000  
Share repurchases, authorized amount   $ 3,000,000        
Number of shares repurchased 346,000 $ 410,000   756,000    
Number of remaining for repurchase of shares 2,240,000     2,240,000    
Options            
Summary Of Significant Accounting Policies            
Outstanding unamortized share-based compensation expense 433,000     433,000    
Restricted Stock Units            
Summary Of Significant Accounting Policies            
Outstanding unamortized share-based compensation expense $ 8,039,000     $ 8,039,000    
Maximum            
Summary Of Significant Accounting Policies            
Service period       3 years    
Minimum            
Summary Of Significant Accounting Policies            
Service period       1 year    
One customer | Customer concentration risk | Sales revenue, net            
Summary Of Significant Accounting Policies            
Concentration Risk, Percentage 16.00%   20.00% 17.00%    
One customer | Customer concentration risk | Accounts receivable            
Summary Of Significant Accounting Policies            
Concentration Risk, Percentage       15.00% 20.00% 21.00%
Two customer | Customer concentration risk | Sales revenue, net            
Summary Of Significant Accounting Policies            
Concentration Risk, Percentage     11.00%      
Two customer | Customer concentration risk | Accounts receivable            
Summary Of Significant Accounting Policies            
Concentration Risk, Percentage           15.00%
Three customer | Customer concentration risk | Accounts receivable            
Summary Of Significant Accounting Policies            
Concentration Risk, Percentage         10.00% 10.00%