Fair Value of Financial Instruments - Summary of Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets
Cash and due from banks	$ 86,458	$ 98,831
Interest-bearing Deposits in Banks and Other Financial Institutions	9,239	8,455
Investment securities, held to maturity	199,467	207,899
Loans held for sale	6,245	4,088
Stock in FHLB	22,447	22,447
Interest receivable	17,774	18,828
Liabilities
Non-interest bearing deposits	709,978	709,760
Interest bearing deposits	3,172,293	3,221,242
Borrowings	704,613	549,741
Interest payable	2,772	3,062
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Cash and due from banks	86,458	98,831
Interest-bearing Deposits in Banks and Other Financial Institutions	0	0
Investment securities, held to maturity	0	0
Loans held for sale	0	0
Loans (excluding loan level hedges), net	0	0
Stock in FHLB	0	0
Interest receivable	0	0
Liabilities
Non-interest bearing deposits	709,978	709,760
Interest bearing deposits	0	0
Borrowings	0	0
Subordinated debentures	0	0
Interest payable	0	0
Significant Other Observable Inputs (Level 2)
Assets
Cash and due from banks	0	0
Interest-bearing Deposits in Banks and Other Financial Institutions	9,357	8,537
Investment securities, held to maturity	207,324	215,147
Loans held for sale	0	0
Loans (excluding loan level hedges), net	0	0
Stock in FHLB	22,447	22,447
Interest receivable	17,774	18,828
Liabilities
Non-interest bearing deposits	0	0
Interest bearing deposits	3,151,657	3,180,768
Borrowings	710,005	546,995
Subordinated debentures	52,118	51,809
Interest payable	2,772	3,062
Significant Unobservable Inputs (Level 3)
Assets
Cash and due from banks	0	0
Interest-bearing Deposits in Banks and Other Financial Institutions	0	0
Investment securities, held to maturity	0	0
Loans held for sale	6,245	4,088
Loans (excluding loan level hedges), net	3,694,421	3,554,951
Stock in FHLB	0	0
Interest receivable	0	0
Liabilities
Non-interest bearing deposits	0	0
Interest bearing deposits	0	0
Borrowings	0	0
Subordinated debentures	0	0
Interest payable	0	0
Carrying Amount
Assets
Cash and due from banks	86,458	98,831
Interest-bearing Deposits in Banks and Other Financial Institutions	9,239	8,455
Investment securities, held to maturity	199,467	207,899
Loans held for sale	6,245	4,088
Loans (excluding loan level hedges), net	3,658,859	3,619,174
Stock in FHLB	22,447	22,447
Interest receivable	17,774	18,828
Liabilities
Non-interest bearing deposits	709,978	709,760
Interest bearing deposits	3,172,293	3,221,242
Borrowings	704,613	549,741
Subordinated debentures	56,374	56,311
Interest payable	$ 2,772	$ 3,062

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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