Note 5 - Loans - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Loans and Leases Receivable, Gross	$ 241,098	$ 239,162
Gaming [Member]
Loans and Leases Receivable, Gross	10,680	7,900
Hotel/Motel [Member]
Loans and Leases Receivable, Gross	48,326	50,765
Real Estate, Construction [Member]
Loans and Leases Receivable, Gross	28,951	27,191
Real Estate, Mortgage [Member]
Loans and Leases Receivable, Gross	127,941	128,352
Commercial And Industrial Loan [Member]
Loans and Leases Receivable, Gross	15,965	15,882
Other Loan [Member]
Loans and Leases Receivable, Gross	$ 9,235	$ 9,072