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Note 3 - Debt Securities - Securities by Contractual Maturity (Details) $ in Thousands	Dec. 31, 2024 USD ($)
Securities available for sale, due within one year, amortized cost	$ 63,595
Securities available for sale, due after one year but within five years, amortized cost	34,712
Securities available for sale, due after five years but within ten years, amortized cost	0
Securities available for sale, due after ten years, amortized cost	0
Securities available for sale, single maturity date, amortized cost	98,307
Securities available for sale, due within one year, fair value	63,561
Securities available for sale, due after one year but within five years, fair value	33,587
Securities available for sale, due after five years but within ten years, fair value	0
Securities available for sale, due after ten years, fair value	0
Securities available for sale, single maturity date, fair value	97,148
US Treasury Securities [Member]
Securities available for sale, due within one year, amortized cost	55,760
Securities available for sale, due after one year but within five years, amortized cost	0
Securities available for sale, due after five years but within ten years, amortized cost	0
Securities available for sale, due after ten years, amortized cost	0
Securities available for sale, single maturity date, amortized cost	55,760
Securities available for sale, due within one year, fair value	55,769
Securities available for sale, due after one year but within five years, fair value	0
Securities available for sale, due after five years but within ten years, fair value	0
Securities available for sale, due after ten years, fair value	0
Securities available for sale, single maturity date, fair value	55,769
US States and Political Subdivisions Debt Securities [Member]
Securities available for sale, due within one year, amortized cost	4,074
Securities available for sale, due after one year but within five years, amortized cost	9,875
Securities available for sale, due after five years but within ten years, amortized cost	0
Securities available for sale, due after ten years, amortized cost	0
Securities available for sale, single maturity date, amortized cost	13,949
Securities available for sale, due within one year, fair value	4,073
Securities available for sale, due after one year but within five years, fair value	9,764
Securities available for sale, due after five years but within ten years, fair value	0
Securities available for sale, due after ten years, fair value	0
Securities available for sale, single maturity date, fair value	13,837
Corporate Debt Securities [Member]
Securities available for sale, due within one year, amortized cost	3,761
Securities available for sale, due after one year but within five years, amortized cost	24,837
Securities available for sale, due after five years but within ten years, amortized cost	0
Securities available for sale, due after ten years, amortized cost	0
Securities available for sale, single maturity date, amortized cost	28,598
Securities available for sale, due within one year, fair value	3,719
Securities available for sale, due after one year but within five years, fair value	23,823
Securities available for sale, due after five years but within ten years, fair value	0
Securities available for sale, due after ten years, fair value	0
Securities available for sale, single maturity date, fair value	$ 27,542

X

- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ References

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+ References

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