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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Description of Business and Summary of Significant Accounting Policies [Line Items]          
Foreign Currency Transaction Gain (Loss), before Tax $ (16,000) $ 157,000 $ (155,000) $ 234,000  
Deferred Revenue 4,700,000   4,700,000   $ 1,200,000
Capitalized software development costs          
Description of Business and Summary of Significant Accounting Policies [Line Items]          
Cost 7,400,000   7,400,000   5,500,000
Capitalized software development cost - work in progress          
Description of Business and Summary of Significant Accounting Policies [Line Items]          
Cost $ 500,000   $ 500,000   $ 1,400,000
Minimum | Capitalized software development costs          
Description of Business and Summary of Significant Accounting Policies [Line Items]          
Estimated useful lives     P3Y    
Maximum | Capitalized software development costs          
Description of Business and Summary of Significant Accounting Policies [Line Items]          
Estimated useful lives     P10Y    
Error corrections          
Description of Business and Summary of Significant Accounting Policies [Line Items]          
Decrease in expenses   $ 74,000   $ 147,000  
Decrease in the loss per share       $ 0.01  
Decrease in liabilities       $ 101,000  
Increase in total assets       46,000  
Increase in cash flow from operating activities       94,000  
Increase in cash flow from financing activities       $ 94,000