Loans and Allowance for Loan Losses - Major Categories of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 299,120	$ 271,612
Less: Allowance for loan losses	(2,541)	(2,589)
Loans and leases receivable, total	296,579	269,023
Consumer
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	13,071	16,112
Residential Real estate
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	82,637	81,926
Indirect
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	116,698	85,186
Construction
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	2,317	3,536
Commercial Real Estate
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	70,113	73,595
Commercial Mortgage Portfolio Segment
Schedule of Available-for-sale Securities [Line Items]
Loans, net of deferred fees and costs	$ 14,284	$ 11,257

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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.

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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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