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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Description of Business and Summary of Significant Accounting Policies [Line Items]      
Revenues $ 15,967,000 $ 14,530,000  
Foreign Currency Transaction Gain (Loss), before Tax 140,000 (77,000)  
Foreign currency translation adjustment, net of taxes 21,000 718,000  
Cash and Cash Equivalents, at Carrying Value, Total 17,296,000   $ 17,573,000
Deferred Revenue 2,000,000   1,200,000
Capitalized software development costs      
Description of Business and Summary of Significant Accounting Policies [Line Items]      
Cost 7,100,000   5,500,000
Capitalized software development cost - work in progress      
Description of Business and Summary of Significant Accounting Policies [Line Items]      
Cost $ 300,000   $ 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    
Agility [Member]      
Description of Business and Summary of Significant Accounting Policies [Line Items]      
Revenues $ 3,185,000 2,839,000  
Error corrections      
Description of Business and Summary of Significant Accounting Policies [Line Items]      
Decrease in expenses   74,000  
Decrease in liabilities   51,000  
Increase in total assets   23,000  
Increase in cash flow from operating activities   47,000  
Increase in cash flow from financing activities   $ 47,000