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Fair Value Measurements - Schedule of Carrying Amount, Fair Value and Placement in Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Financial assets:
Interest-bearing deposits in banks	$ 482,453	$ 375,613	$ 106,001
Equity securities available for sale	2,535	2,170	1,888	$ 2,363
Investment securities available for sale	355,008	337,718	253,048
Investment securities held to maturity	9,451	10,768	18,565
Restricted investment in bank stocks	2,798	2,942	$ 3,701
Level 1
Financial assets:
Cash and due from banks	10,252	12,436
Interest-bearing deposits in banks	482,453	375,613
Equity securities available for sale	2,535	2,170
Investment securities available for sale	0	0
Investment securities held to maturity	0	0
Loans held for sale	0	0
Loans, less allowance for loan losses	0	0
Accrued interest receivable	0	0
Restricted investment in bank stocks	0	0
Financial liabilities:
Demand deposits and savings	0	0
Time deposits	0	0
Short-term borrowings	0	0
Long-term borrowings	0	0
Trust preferred subordinated debt	0	0
Accrued interest payable	0	0
Off-balance sheet financial instruments	0	0
Level 2
Financial assets:
Cash and due from banks	14,053	11,303
Interest-bearing deposits in banks	0	0
Equity securities available for sale	0	0
Investment securities available for sale	355,008	337,718
Investment securities held to maturity	9,451	10,768
Loans held for sale	12,000	11,034
Loans, less allowance for loan losses	0	0
Accrued interest receivable	6,767	6,950
Restricted investment in bank stocks	2,798	2,942
Financial liabilities:
Demand deposits and savings	1,816,731	1,708,868
Time deposits	465,265	481,138
Short-term borrowings	31,282	38,464
Long-term borrowings	55,329	43,669
Trust preferred subordinated debt	9,914	9,902
Accrued interest payable	822	1,434
Off-balance sheet financial instruments	0	0
Level 3
Financial assets:
Cash and due from banks	0	0
Interest-bearing deposits in banks	0	0
Equity securities available for sale	0	0
Investment securities available for sale	0	0
Investment securities held to maturity	0	0
Loans held for sale	0	0
Loans, less allowance for loan losses	1,616,326	1,662,342
Accrued interest receivable	0	0
Restricted investment in bank stocks	0	0
Financial liabilities:
Demand deposits and savings	0	0
Time deposits	0	0
Short-term borrowings	0	0
Long-term borrowings	0	0
Trust preferred subordinated debt	0	0
Accrued interest payable	0	0
Off-balance sheet financial instruments	0	0
Carrying Amount
Financial assets:
Cash and due from banks	24,305	23,739
Interest-bearing deposits in banks	482,453	375,613
Equity securities available for sale	2,535	2,170
Investment securities available for sale	355,008	337,718
Investment securities held to maturity	9,155	10,294
Loans held for sale	12,000	11,034
Loans, less allowance for loan losses	1,590,481	1,617,558
Accrued interest receivable	6,767	6,950
Restricted investment in bank stocks	2,798	2,942
Financial liabilities:
Demand deposits and savings	1,816,731	1,708,868
Time deposits	461,891	476,657
Short-term borrowings	31,282	38,464
Long-term borrowings	54,616	42,745
Trust preferred subordinated debt	11,000	11,000
Accrued interest payable	822	1,434
Off-balance sheet financial instruments	0	0
Fair Value
Financial assets:
Cash and due from banks	24,305	23,739
Interest-bearing deposits in banks	482,453	375,613
Equity securities available for sale	2,535	2,170
Investment securities available for sale	355,008	337,718
Investment securities held to maturity	9,451	10,768
Loans held for sale	12,000	11,034
Loans, less allowance for loan losses	1,616,326	1,662,342
Accrued interest receivable	6,767	6,950
Restricted investment in bank stocks	2,798	2,942
Financial liabilities:
Demand deposits and savings	1,816,731	1,708,868
Time deposits	465,265	481,138
Short-term borrowings	31,282	38,464
Long-term borrowings	55,329	43,669
Trust preferred subordinated debt	9,914	9,902
Accrued interest payable	822	1,434
Off-balance sheet financial instruments	$ 0	$ 0

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

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