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Disclosures about Fair Value Measurements and Financial Instruments - Schedule of estimated fair value and recorded carrying value (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2020	Dec. 31, 2019
FINANCIAL ASSETS: Carrying Value
Investment securities - HTM, Carrying Value		$ 41,549	$ 39,936
Loans held for sale		8,189	4,868
Loans, net of allowance for loan loss and unearned income, Carrying Value		910,462	873,427
Investment securities - HTM, Fair Value		43,989	41,082
Loans held for sale, Fair Value		8,359	4,970
Loans, net of allowance for loan loss and unearned income, Fair Value		919,636	873,908
FINANCIAL LIABILITIES: Carrying Value
Deposits with no stated maturities, Carrying Value		717,252	651,469
Deposits with stated maturities, Carrying Value		315,781	309,044
All other borrowings, Carrying Value	[1]	82,820	74,134
Deposits with no stated maturities, Fair Value		729,128	631,023
Deposits with stated maturities, Fair Value		319,744	310,734
All other borrowings, Fair Value	[1]	$ 89,225	76,323
Assets and liabilities considered financial instruments, percentage		90.00%
Level 1
FINANCIAL ASSETS: Carrying Value
Loans held for sale, Fair Value		$ 8,359	4,970
Level 2
FINANCIAL ASSETS: Carrying Value
Investment securities - HTM, Fair Value		40,995	38,129
Level 3
FINANCIAL ASSETS: Carrying Value
Investment securities - HTM, Fair Value		2,994	2,953
Loans, net of allowance for loan loss and unearned income, Fair Value		919,636	873,908
FINANCIAL LIABILITIES: Carrying Value
Deposits with no stated maturities, Fair Value		729,128	631,023
Deposits with stated maturities, Fair Value		319,744	310,734
All other borrowings, Fair Value	[1]	$ 89,225	$ 76,323
[1] All other borrowings include advances from Federal Home Loan Bank, guaranteed junior subordinated deferrable interest debentures, and subordinated debt.

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

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