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(1) Summary of Significant Accounting Policies (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Portfolio value $ 8,200,000   $ 15,300,000 $ 4,400,000
Stock-based compensation 1,400,000 $ 530,000 3,000,000.0 1,300,000
Unrecognized stock-based compensation costs 10,900,000   $ 10,900,000  
Weighted-average period for unrecognized costs     2 years 7 months 6 days  
Intrinsic value options outstanding 29,200,000   $ 29,200,000  
Intrinsic value of options exercisable $ 22,700,000   22,700,000  
Intrinsic value of options exercised     $ 23,100,000 $ 3,000,000.0
Shares available for grant 2,691,000   2,691,000  
Options Exercised [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Options exercised     2,974,223 1,054,541