Note 1 - Basis of Presentation and Critical Accounting Policies (Details Textual) - USD ($)			1 Months Ended
	Dec. 18, 2015	Jan. 29, 2015	Dec. 31, 2022	Apr. 30, 2021	Sep. 30, 2024	Dec. 31, 2023
Stock Issued During Period, Shares, New Issues (in shares)		13,100,360
Proceeds from Issuance of Common Stock, Net		$ 117,600,000
Proceeds from Issuance Initial Public Offering		58,400,000
Employee Stock Ownership Plan (ESOP), Issued, Percentage of Common Stock Issued	8.00%
Stock Issued During Period, Shares, Employee Stock Ownership Plan (in shares)	1,048,029
Financing Receivable, after Allowance for Credit Loss					$ 1,714,416,000	$ 1,642,518,000
Quil Ventures, Inc. [Member]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners			5.00%
Investments			$ 225,000			225,000
Commitment Receivable			$ 1,500,000			$ 1,500,000
First Federal Community Foundation [Member]
Payments for Contributions to Charity		$ 400,000
Quin Ventures, Inc [Member] | Joint Venture Agreement [Member] | Partially Unfunded Loan Commitment [Member]
Financing Receivable, after Allowance for Credit Loss				$ 8,000,000
POM Peace of Mind, Inc [Member] | Joint Venture Agreement [Member]
Stock Issued During Period, Shares, New Issues (in shares)				29,719
Stock Issued During Period, Value, New Issues				$ 500,000
Stock Returned During Period, Shares (in shares)			29,719
Contribution of Nonmonetary Assets to Charitable Organization [Member] | First Federal Community Foundation [Member]
Stock Issued During Period, Shares, New Issues (in shares)		933,360
IPO [Member]
Stock Issued During Period, Shares, New Issues (in shares)		12,167,000
Shares Issued, Price Per Share (in dollars per share)		$ 10
Proceeds from Issuance of Common Stock		$ 121,700,000