Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financial assets:
Restricted investment in bank stock, at fair value	$ 15,725	$ 18,862
Bank-owned life insurance	28,812	28,627
Accrued interest receivable	5,542	5,334
Financial liabilities:
Interest-bearing deposits	987,404	899,089
Noninterest-bearing deposits	321,657	320,814
Level I
Financial assets:
Cash and cash equivalents	73,596	66,742
Restricted investment in bank stock, at fair value	15,725	18,862
Loans held for sale	1,787	2,929
Loans, net	0	0
Bank-owned life insurance	28,812	28,627
Accrued interest receivable	5,542	5,334
Financial liabilities:
Interest-bearing deposits	721,366	612,478
Noninterest-bearing deposits	321,657	320,814
Short-term borrowings	84,499	167,865
Long-term borrowings	0	0
Accrued interest payable	1,278	1,150
Level II
Financial assets:
Cash and cash equivalents	0	0
Restricted investment in bank stock, at fair value	0	0
Loans held for sale	0	0
Loans, net	0	0
Bank-owned life insurance	0	0
Accrued interest receivable	0	0
Financial liabilities:
Interest-bearing deposits	0	0
Noninterest-bearing deposits	0	0
Short-term borrowings	0	0
Long-term borrowings	0	0
Accrued interest payable	0	0
Level III
Financial assets:
Cash and cash equivalents	0	0
Restricted investment in bank stock, at fair value	0	0
Loans held for sale	0	0
Loans, net	1,388,307	1,381,581
Bank-owned life insurance	0	0
Accrued interest receivable	0	0
Financial liabilities:
Interest-bearing deposits	266,463	269,630
Noninterest-bearing deposits	0	0
Short-term borrowings	0	0
Long-term borrowings	144,776	137,773
Accrued interest payable	0	0
Carrying Value
Financial assets:
Cash and cash equivalents	73,596	66,742
Restricted investment in bank stock, at fair value	15,725	18,862
Loans held for sale	1,787	2,929
Loans, net	1,370,678	1,370,920
Bank-owned life insurance	28,812	28,627
Accrued interest receivable	5,542	5,334
Financial liabilities:
Interest-bearing deposits	987,404	899,089
Noninterest-bearing deposits	321,657	320,814
Short-term borrowings	84,499	167,865
Long-term borrowings	144,631	138,942
Accrued interest payable	1,278	1,150
Fair Value
Financial assets:
Cash and cash equivalents	73,596	66,742
Restricted investment in bank stock, at fair value	15,725	18,862
Loans held for sale	1,787	2,929
Loans, net	1,388,307	1,381,581
Bank-owned life insurance	28,812	28,627
Accrued interest receivable	5,542	5,334
Financial liabilities:
Interest-bearing deposits	987,829	882,108
Noninterest-bearing deposits	321,657	320,814
Short-term borrowings	84,499	167,865
Long-term borrowings	144,776	137,773
Accrued interest payable	$ 1,278	$ 1,150