Loans - Major Classification of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	$ 692,866	$ 620,405	$ 607,327
Net deferred loan fees	(43)	(135)
Less allowance for loan losses	(7,825)	(7,306)
Loans receivable, net	684,998	612,964
Residential Mortgage Loans [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	243,388	239,644
Residential Mortgage Loans [Member] \| 1-4 Family First Lien Residential Mortgages [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	239,422	232,523	225,864
Residential Mortgage Loans [Member] \| Construction [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	3,966	7,121
Commercial Loans [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	370,756	329,228
Commercial Loans [Member] \| Real Estate [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	225,794	212,314	206,960
Commercial Loans [Member] \| Lines of Credit [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	56,569	44,235	49,314
Commercial Loans [Member] \| Other Commercial and Industrial [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	79,590	63,359	58,742
Commercial Loans [Member] \| Tax Exempt Loans [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	8,803	9,320	9,860
Consumer Loans [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	78,722	51,533
Consumer Loans [Member] \| Home Equity and Junior Liens [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	26,214	26,109	26,262
Consumer Loans [Member] \| Other Consumer [Member]
Notes, Loans and Financing Receivable, Net [Abstract]
Total loans	$ 52,508	$ 25,424	$ 27,037

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 of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts 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. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.

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