Note 6 - Borrowings (Details Textual) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	$ 26,800	$ 17,400
Residential Portfolio Segment [Member] \| One to Four Family [Member]
Federal Home Loan Bank Advances, Maximum Percentage of Loan Carrying Value	78.00%
Residential Portfolio Segment [Member] \| Multi-family Loan [Member]
Federal Home Loan Bank Advances, Maximum Percentage of Loan Carrying Value	73.00%
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Federal Home Loan Bank Advances, Maximum Percentage of Loan Carrying Value	63.00%
Federal Home Loan Bank of Chicago [Member]
Short-Term Debt	$ 400,500	185,700
Federal Home Loan Bank of Chicago [Member] \| Short-Term Advance [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	400,500
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	184,700
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 3, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 51,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.21%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 5, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 15,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.19%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 12, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 41,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.17%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 13, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 42,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.17%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 14, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 30,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.25%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 18, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 7,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.11%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 19, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 43,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.22%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 20, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 25,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.21%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 24, 2023, 1 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 45,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.21%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 24, 2023, 2 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 20,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.19%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 26, 2023, 1 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 16,500
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.12%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 26, 2023, 2 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 44,500
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.12%
Federal Home Loan Bank of Chicago [Member] \| Short-term Advance Maturing July 27, 2023 [Member]
Federal Home Loan Bank, Advance, Maturity, Year One	$ 20,500
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	5.11%
Federal Home Loan Bank of Chicago [Member] \| Advance One with FHLB Quarterly Call Option [Member]
Federal Home Loan Bank, Advance, Maturity, Year Two	$ 125,000
Federal Home Loan Bank of Chicago [Member] \| Advance with FHLB Quarterly Call Option in September 2023 [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	3.50%
Federal Home Loan Bank, Advance, Maturity, Year Two	$ 50,000
Federal Home Loan Bank of Chicago [Member] \| Advance with FHLB Quarterly Call Option in November 2023 [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	4.09%
Federal Home Loan Bank, Advance, Maturity, Year Two	$ 25,000
Federal Home Loan Bank of Chicago [Member] \| Advance Two with FHLB Quarterly Call Option in November 2023 [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	4.25%
Federal Home Loan Bank, Advance, Maturity, Year Two	$ 25,000
Federal Home Loan Bank of Chicago [Member] \| Advance with FHLB Quarterly Call Option in May 2023 [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	3.82%
Federal Home Loan Bank, Advance, Maturity, Year Two	$ 25,000
Federal Home Loan Bank of Chicago [Member] \| Advance, December 2027 Maturity [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	1.73%
Federal Home Loan Bank, Advance, Maturity, Year Four	$ 50,000
Federal Home Loan Bank of Chicago [Member] \| Advance with FHLB Quarterly Call Option [Member]
Federal Home Loan Bank, Advance, Maturity, Year Ten	$ 20,000
Federal Home Loan Bank of Chicago [Member] \| Advance with FHLB Monthly Call Option Currently Available [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End	2.38%
Federal Home Loan Bank, Advance, Maturity, Year Ten	$ 20,000
Repurchase Agreements [Member]
Line of Credit Facility, Maximum Borrowing Capacity	50,000
Short-Term Debt	$ 19,377	$ 1,084

Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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Amount of advance from Federal Home Loan Bank (FHLBank) maturing in second 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).

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Amount of advance from Federal Home Loan Bank (FHLBank) maturing in fourth 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).

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Amount of advance from Federal Home Loan Bank (FHLBank) maturing in next 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).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Amount of advance from Federal Home Loan Bank (FHLBank) maturing in 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).

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