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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Deferred Tax Assets, Operating Loss Carryforwards, Total |  | $ 4,144,000 | $ 3,541,000 |
Accounts Receivable, Allowance for Credit Loss, Ending Balance |  | 564,000 | 563,000 |
Deferred Tax Assets, Net of Valuation Allowance, Total |  | 6,097,000 | 6,023,000 |
Income Taxes Paid, Net, Total |  |  | 1,200,000 |
Accounts Receivable, Credit Loss Expense (Reversal) |  | 128,000 | 330,000 |
Depreciation, Amortization and Accretion, Net, Total |  | 2,100,000 |  |
Goodwill, Impairment Loss |  |  |  | $ 0
Goodwill, Ending Balance |  | 4,166,000 | 3,760,000 | $ 3,784,000
Share-based Payment Arrangement, Expense |  | 711,000 | 136,000 |
Resource Plus, Inc [Member] |  |  |  |
Goodwill, Ending Balance |  | $ 1,962 |  |
Computer Software, Intangible Asset [Member] |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  | 3 years |  |
Capitalized Software Costs [Member] |  |  |  |
Capitalized Computer Software, Gross |  | $ 1,200,000 | 1,000,000.0 |
Capitalized Computer Software, Amortization |  | $ 1,200,000 | 1,200,000 |
Minimum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 3 years |  |
Minimum [Member] | Furniture and Fixtures [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 3 years |  |
Minimum [Member] | Software and Software Development Costs [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 3 years |  |
Minimum [Member] | Leasehold Improvements [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 3 years |  |
Maximum [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 7 years |  |
Maximum [Member] | Furniture and Fixtures [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 7 years |  |
Maximum [Member] | Software and Software Development Costs [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 5 years |  |
Maximum [Member] | Leasehold Improvements [Member] |  |  |  |
Property, Plant and Equipment, Useful Life (Year) |  | 15 years |  |
Previously Reported [Member] |  |  |  |
Income Taxes Paid, Net, Total |  |  | 184,000 |
Revision of Prior Period, Adjustment [Member] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Total | $ 2,400,000 |  |  |
Accounts Receivable, Allowance for Credit Loss, Ending Balance | 600,000 |  |  |
Deferred Tax Assets, Net of Valuation Allowance, Total | (2,300,000) |  | (2,300,000) |
Deferred Tax Liabilities, Net, Total | (2,300,000) |  | 2,300,000 |
Foreign Tax Authority [Member] | Previously Reported [Member] |  |  |  |
Income (Loss) Attributable to Parent, before Tax, Total | (615,000) |  |  |
Foreign Tax Authority [Member] | Revision of Prior Period, Adjustment [Member] |  |  |  |
Deferred Tax Assets, Net of Valuation Allowance, Total | (3,000,000.0) |  | $ (3,000,000.0) |
Domestic Tax Authority [Member] |  |  |  |
Income (Loss) Attributable to Parent, before Tax, Total | $ (615,000) |  |  |

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