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Note 13 - Subordinated Debentures - Summary of Mandatory Redeemable Trust Preferred Securities (Details) - USD ($)		6 Months Ended	12 Months Ended
	Jul. 03, 2023	Jun. 30, 2025	Dec. 31, 2024	Dec. 19, 2003
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) [Member]	Secured Overnight Financing Rate (SOFR) [Member]
Subordinated Debt [Member] | Center Bancorp Statutory Trust II [Member]
Securities issued		$ 5,000,000	$ 5,000,000	$ 5,000,000
Liquidation value (in dollars per share)		$ 1,000	$ 1,000
Maturity		Jan. 23, 2034	Jan. 23, 2034
Redeemable by issuer beginning		Jan. 23, 2009	Jan. 23, 2009
Subordinated Debt [Member] | Center Bancorp Statutory Trust II [Member] | Tenor Spread Adjustment [Member]
Coupon rate	0.26161%	0.26161%	0.26161%
Subordinated Debt [Member] | Center Bancorp Statutory Trust II [Member] | Secured Overnight Financing Rate (SOFR) [Member]
Coupon rate		2.85%	2.85%

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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X

- Definition

Earliest date when the debt instrument can be converted into equity, in YYYY-MM-DD format.

+ References

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-Section S99
-Paragraph 1
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X

- Definition

Per share excess of preference in liquidation over convertible debt instrument's if-converted par or stated value of share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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- Definition

Face (par) amount of debt instrument at time of issuance.

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X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Indicates type of variable interest rate on debt instrument.

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