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Note 5 - Revenue Recognition (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Contract with Customer, Asset, after Allowance for Credit Loss $ 0 $ 0
Contract with Customer, Liability, Current $ 1,842,036 $ 1,999,841
Revenue Benchmark [Member] | Product Concentration Risk [Member] | Recruitment Services [Member]    
Concentration Risk, Percentage 4.60% 8.10%