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Fair Value of Financial Instruments and Fair Value Measurements - Schedule of Fair Value, by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 19,114	$ 16,584	$ 19,996	$ 13,569
Investment securities available for sale	388,345	387,983
Bank stocks, at cost	4,776	5,423
Loans, net	489,373	433,743
Loans held for sale	4,743	6,535
Derivative financial instruments	522	395
Accrued interest receivable	4,631	4,409
Non-maturity deposits	(656,628)	(642,281)
Time deposits	(167,020)	(123,277)
FHLB borrowings	(20,000)	(31,600)
Subordinated debentures	(21,651)	(21,484)
Other borrowings	(15,246)	(13,509)
Accrued interest payable	(442)	(274)
Derivative financial instruments	(25)
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	19,114	16,584
Investment securities available for sale	1,971	1,998
Bank stocks, at cost
Loans, net
Loans held for sale
Derivative financial instruments
Accrued interest receivable		20
Non-maturity deposits	(656,628)	(642,281)
Time deposits
FHLB borrowings
Subordinated debentures
Other borrowings
Accrued interest payable
Derivative financial instruments
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents
Investment securities available for sale	386,374	385,985
Bank stocks, at cost
Loans, net
Loans held for sale	4,743	6,535
Derivative financial instruments	522	395
Accrued interest receivable	2,194	2,234
Non-maturity deposits
Time deposits	(164,994)	(121,298)
FHLB borrowings	(20,000)	(31,706)
Subordinated debentures	(19,678)	(19,134)
Other borrowings	(15,246)	(13,509)
Accrued interest payable	(442)	(274)
Derivative financial instruments	(25)
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents
Investment securities available for sale
Bank stocks, at cost
Loans, net	494,473	436,910
Loans held for sale
Derivative financial instruments
Accrued interest receivable	2,437	2,155
Non-maturity deposits
Time deposits
FHLB borrowings
Subordinated debentures
Other borrowings
Accrued interest payable
Derivative financial instruments
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	19,114	16,584
Investment securities available for sale	388,345	387,983
Bank stocks, at cost
Loans, net	494,473	436,910
Loans held for sale	4,743	6,535
Derivative financial instruments	522	395
Accrued interest receivable	4,631	4,409
Non-maturity deposits	(656,628)	(642,281)
Time deposits	(164,994)	(121,298)
FHLB borrowings	(20,000)	(31,706)
Subordinated debentures	(19,678)	(19,134)
Other borrowings	(15,246)	(13,509)
Accrued interest payable	(442)	$ (274)
Derivative financial instruments	$ (25)

X

- Definition

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

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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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