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Note A - The Company and Summary of Significant Accounting Policies (Details Textual)
 12 Months Ended 24 Months Ended
Nov. 20, 2020
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
Dec. 31, 2020
USD ($)
shares
Operational Costs Per Month   $ 735,000      
Revenue from Contract with Customer, Including Assessed Tax   2,836,782 $ 2,267,528    
Net Cash Provided by (Used in) Financing Activities, Total   24,094,012 2,148,727    
Cash and Cash Equivalents, at Carrying Value, Ending Balance   $ 16,993,096 79,013   $ 16,993,096
Percentage of Support and Maintenance Revenue to License Cost   18.00%      
Capitalized Contract Cost, Amortization Period (Year)   4 years     4 years
Contract with Customer, Liability, Total   $ 702,336 359,212   $ 702,336
Goodwill, Impairment Loss   0      
Accounts Receivable, Allowance for Credit Loss, Noncurrent   $ 1,720,000 1,720,000   $ 1,720,000
Percentage of Remaining Balance Owned Reserved   100.00%      
Advertising Expense   $ 494,000 $ 317,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) | shares   28,440 30,167   28,440
Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   3 years      
Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   4 years      
License [Member]          
Revenue from Contract with Customer, Including Assessed Tax   $ 962,038 $ 442,649    
License [Member] | CHINA          
Revenue from Contract with Customer, Including Assessed Tax       $ 1,100,000  
Receivables, Net, Current, Total     555,555    
Accounts Receivable, Allowance for Credit Loss, Writeoff     $ 555,555    
Reverse Stock Split [Member]          
Stockholders' Equity Note, Stock Split, Conversion Ratio 8