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Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Contract with Customer, Liability, Current | $ 17,647 | $ 66,572 | $ 123,529
Accounts Receivable, Allowance for Credit Loss, Current | 319,000 | 205,522 |
Capitalized Computer Software, Additions | 735,813 | 759,923 |
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Ending Balance | 623,494 | 515,199 |
Advertising Expense | $ 179,000 | 59,000 |
Goodwill, Amortization Period (Year) | 15 years |  |
Operating Loss Carryforwards, Total | $ 29,455,176 |  |
Deferred Tax Assets, Net of Valuation Allowance, Total | 1,500,000 |  |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | 110,000 |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount | 212,870 | 152,835 |
Accounts Receivable, Credit Loss Expense (Reversal) | $ 151,951 | 96,000 |
Revision of Prior Period, Reclassification, Adjustment [Member] |  |  |
Accounts Receivable, Credit Loss Expense (Reversal) |  | 96,000 |
Federal Income Tax Expense (Benefit), Continuing Operations, Total |  | 94,948 |
Previously Reported [Member] |  |  |
Accounts Receivable, after Allowance for Credit Loss, Total |  | $ 96,000 |
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 | 5.00% |  |
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 | 15.00% |  |

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