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Note 2 - Debt Securities - Securities by Contractual Maturity (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Securities available for sale, due within one year, amortized cost	$ 735
Securities available for sale, due within one year, fair value	737
Securities available for sale, due after one year but within five years, amortized cost	21,635
Securities available for sale, due after one year but within five years, fair value	21,787
Securities available for sale, due after five years but within ten years, amortized cost	14,652
Securities available for sale, due after five years but within ten years, fair value	14,814
Securities available for sale, single maturity date, amortized cost	37,022
Securities available for sale, single maturity date, fair value (US	37,338
Total debt securities available for sale, amortized cost	79,242
Total debt securities available for sale, fair value	79,842
Collateralized Mortgage Backed Securities [Member]
Mortgage-backed Agency securities, amortized cost	42,220
Mortgage-backed Agency securities, fair value	$ 42,504

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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