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Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual) | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Accounts Receivable, Allowance for Credit Loss, Current | $ 319,000 |
Capitalized Computer Software, Additions | 634,571 | $ 584,246
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 826,528 | 755,494
Advertising Expense | $ 16,500 | 94,000
Goodwill, Amortization Period (Year) | 15 years |
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 280,619 | $ 262,530
First 3% Matched [Member] |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 100.00% |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 3.00% |
Over 3% Matched [Member] |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 50.00% |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 3.00% |
Maximum Matched [Member] |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 4.00% |
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] |  |
Number of Major Customers | 0 | 0
Minimum [Member] |  |
Property, Plant and Equipment, Useful Life (Year) | 3 years |
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 1.00% |
Maximum [Member] |  |
Property, Plant and Equipment, Useful Life (Year) | 10 years |
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 80.00% |

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