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Note 3 - Related Party Transactions (Details Textual)
12 Months Ended
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
Franchised and Owned Branch Locations 427 435 217
Number of Offices 427 435  
Jackson Insurance Agency and Bass Underwriters Inc [Member]      
Related Party Transaction, Amounts of Transaction $ 1,700 $ 336,000  
Insurance Technologies [Member]      
Related Party Transaction, Amounts of Transaction 443,000 245,000  
Accounts Payable 0 35,000  
Worlds Franchisees [Member]      
Related Party Transaction, Amounts of Transaction $ 9,577,000 $ 8,676,000  
Number of Worlds Franchises 34 27  
Franchised and Owned Branch Locations 70 67