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Fair Value Disclosures and Reporting and Fair Value Measurements -Disclosures about Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial Assets:
Investment securities available for sale	$ 741,789	$ 1,019,201
Securities held-to-maturity	306,156	314,924
Financial Liabilities:
Repurchase agreements	121,851	107,121
Carrying Amount [Member]
Financial Assets:
Cash and cash equivalents	119,244	78,602
Investment securities available for sale	741,789	1,019,201
Securities held-to-maturity	316,406	320,057
Loans held for investment	2,133,938	2,066,884
Financial Liabilities:
Deposits	2,847,004	2,761,223
Repurchase agreements	121,851	107,121
Other borrowings	80,000	360,500
Long-term debt	49,326	49,304
Subordinated debentures	35,704	35,660
Fair Value [Member]
Financial Assets:
Cash and cash equivalents	119,244	78,602
Investment securities available for sale	741,789	1,019,201
Securities held-to-maturity	306,156	314,924
Loans held for investment	1,981,577	1,924,543
Financial Liabilities:
Deposits	2,843,284	2,759,338
Repurchase agreements	121,851	107,121
Other borrowings	54,786	360,500
Long-term debt	44,189	44,097
Subordinated debentures	35,453	35,423
Fair Value [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets:
Cash and cash equivalents	119,244	78,602
Investment securities available for sale	0	0
Securities held-to-maturity	0	0
Loans held for investment	0	0
Financial Liabilities:
Deposits	968,997	1,020,772
Repurchase agreements	0	0
Other borrowings	0	0
Long-term debt	0	0
Subordinated debentures	0	0
Fair Value [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets:
Cash and cash equivalents	0	0
Investment securities available for sale	687,130	967,161
Securities held-to-maturity	306,156	314,924
Loans held for investment	5,889	5,889
Financial Liabilities:
Deposits	1,874,287	1,738,566
Repurchase agreements	121,851	107,121
Other borrowings	54,786	360,500
Long-term debt	44,189	44,097
Subordinated debentures	35,453	35,423
Fair Value [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Cash and cash equivalents	0	0
Investment securities available for sale	54,659	52,040
Securities held-to-maturity	0	0
Loans held for investment	1,975,688	1,918,654
Financial Liabilities:
Deposits	0	0
Repurchase agreements	0	0
Other borrowings	0	0
Long-term debt	0	0
Subordinated debentures	$ 0	$ 0

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- Definition

Other long term debt, fair value disclosure.

+ References

No definition available.

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- Definition

Carrying amount of assets sold under agreements to repurchase when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under repurchase agreements exceeds 10 percent of total assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(i))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A)(i))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-5A

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

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-Topic 320
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-Section 50
-Paragraph 5
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-5

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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