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Note 12 - Credit Facility (Details Textual) - City National Bank of Florida [Member] - USD ($)
$ in Millions
Aug. 26, 2021
Dec. 09, 2020
CNB Note [Member]    
Debt Instrument, Face Amount $ 5.0  
Debt Instrument, Maturity Date Jul. 24, 2023  
Revolving Credit Facility [Member]    
Line of Credit Facility, Minimum Deposit Required $ 1.5 $ 3.0
Loan Processing Fee   1.0
Line of Credit Facility, Maximum Borrowing Capacity $ 5.0 $ 10.0
Debt Instrument, LIBOR Floor 0.50%  
Revolving Credit Facility [Member] | London Interbank Offered Rate [Member]    
Debt Instrument, Basis Spread on Variable Rate 3.25%