Fair Value Disclosures and Reporting and Fair Value Measurements - Carrying Amount and Estimated Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financial Assets:
Investment securities available for sale	$ 864,178
Investment securities available for sale (before ASU 2016-13)		$ 973,314
Investment securities held-to-maturity	147,147	0
Financial liabilities:
Repurchase agreements	118,014	106,937
Carrying Amount [Member]
Financial Assets:
Cash and cash equivalents	161,875	257,528
Investment securities available for sale	864,178
Investment securities available for sale (before ASU 2016-13)		973,314
Investment securities held-to-maturity	161,399
Loans and leases, net held for investment	1,980,317	1,973,207
Collateral dependent loans	18,462	398
Financial liabilities:
Deposits	2,850,999	2,781,572
Repurchase agreements	118,014	106,937
Long-term debt	49,173
Short term borrowings		49,141
Subordinated debentures	35,392	35,302
Fair Value [Member]
Financial Assets:
Cash and cash equivalents	161,875	257,528
Investment securities available for sale	864,178
Investment securities available for sale (before ASU 2016-13)		973,314
Investment securities held-to-maturity	147,147
Loans and leases, net held for investment	1,960,923	1,960,966
Collateral dependent loans	18,462	398
Financial liabilities:
Deposits	2,847,796	2,780,668
Repurchase agreements	118,014	106,937
Long-term debt	44,890
Short term borrowings		49,118
Subordinated debentures	33,683	33,281
Fair Value [Member] \| Fair Value, Inputs, Level 1 [Member]
Financial Assets:
Cash and cash equivalents	161,875	257,528
Investment securities available for sale	0
Investment securities available for sale (before ASU 2016-13)		0
Investment securities held-to-maturity	0
Loans and leases, net held for investment	0	0
Collateral dependent loans	0	0
Financial liabilities:
Deposits	1,120,413	1,084,544
Repurchase agreements	0	0
Long-term debt	0
Short term borrowings		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	817,639
Investment securities available for sale (before ASU 2016-13)		750,077
Investment securities held-to-maturity	147,147
Loans and leases, net held for investment	0	0
Collateral dependent loans	18,462	221
Financial liabilities:
Deposits	1,727,383	1,696,124
Repurchase agreements	118,014	106,937
Long-term debt	44,890
Short term borrowings		49,118
Subordinated debentures	33,683	33,281
Fair Value [Member] \| Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Cash and cash equivalents	0	0
Investment securities available for sale	46,539
Investment securities available for sale (before ASU 2016-13)		223,237
Investment securities held-to-maturity	0
Loans and leases, net held for investment	1,960,923	1,960,966
Collateral dependent loans	0	177
Financial liabilities:
Deposits	0	0
Repurchase agreements	0	0
Long-term debt	0
Short term borrowings		0
Subordinated debentures	$ 0	$ 0

Financing Receivable and Net Investment in Lease, Excluding Accrued Interest, Collateral Dependent Loans, Fair Value

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Loans and leases held for investment.

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Other long term debt, fair value disclosure.

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.4-08(m)(1)(i))
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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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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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).

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

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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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This element represents the portion of the balance sheet assertion valued at fair value by the entity 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. This item represents the amount of short-term debt existing as of the balance sheet date.

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