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Loans and Allowance - Major Categories of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 271,612	$ 265,058
Less: Allowance for loan losses	(2,589)	(2,484)
Loans and leases receivable, total	269,023	262,574
Consumer
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	16,112	14,739
Residential real estate
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	81,926	93,468
Indirect
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	85,186	71,656
Commercial
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	11,257	12,351
Construction
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	3,536	4,397
Commercial Real Estate
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 73,595	$ 68,447

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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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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