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Junior Subordinated Debentures Issued to Capital Trusts - Schedule of Outstanding Junior Subordinated Debentures and Related Trust Preferred Securities Issued by Each Trust (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Carrying value	$ 57,803,000	$ 57,455,000
Junior Subordinated Debentures | GCB Capital Trust III
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Carrying value	24,743,000	24,743,000
Contractual principal balance	$ 24,743,000	$ 24,743,000
Annual interest rate spread, percentage	1.40%	1.40%
Adjustment rate	0.26161%	0.26161%
Junior Subordinated Debentures | State Bancorp Capital Trust I
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Carrying value	$ 9,625,000	$ 9,525,000
Contractual principal balance	$ 10,310,000	$ 10,310,000
Annual interest rate spread, percentage	3.45%	3.45%
Junior Subordinated Debentures | State Bancorp Capital Trust II
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Carrying value	$ 9,253,000	$ 9,122,000
Contractual principal balance	$ 10,310,000	$ 10,310,000
Annual interest rate spread, percentage	2.85%	2.85%
Junior Subordinated Debentures | Aliant Statutory Trust II
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Carrying value	$ 14,182,000	$ 14,065,000
Contractual principal balance	$ 15,464,000	$ 15,464,000
Annual interest rate spread, percentage	1.80%	1.80%
Trust preferred securities | GCB Capital Trust III
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Face value	$ 24,000,000	$ 24,000,000
Trust preferred securities | State Bancorp Capital Trust I
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Face value	10,000,000	10,000,000
Trust preferred securities | State Bancorp Capital Trust II
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Face value	10,000,000	10,000,000
Trust preferred securities | Aliant Statutory Trust II
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Face value	$ 15,000,000	$ 15,000,000

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