Investment Securities, Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-Sale:
Amortized Cost	$ 190,115	$ 244,283
Unrealized Gains	1,480	186
Unrealized Losses	365	6,048
Fair Value	191,230	238,421
Debt Securities, Held-to-Maturity:
Amortized Cost	34,031	29,721
Unrealized Gains	402	84
Unrealized Losses	17	781
Fair Value	34,416	29,024
Equity Securities, Amortized Cost Basis	2,119	2,122
Equity securities with a readily determinable fair value, at fair value	2,266	2,078
U.S. Treasury notes [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	2,274	2,278
Unrealized Gains	38	0
Unrealized Losses	0	43
Fair Value	2,312	2,235
U.S. Agency notes [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	48,766	80,708
Unrealized Gains	336	0
Unrealized Losses	59	2,368
Fair Value	49,043	78,340
U.S. Agency mortgage-backed securities [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	84,665	57,584
Unrealized Gains	630	7
Unrealized Losses	233	1,981
Fair Value	85,062	55,610
Debt Securities, Held-to-Maturity:
Amortized Cost	0
Fair Value	0
Non-taxable Municipal securities [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	38,214	86,059
Unrealized Gains	145	77
Unrealized Losses	68	1,422
Fair Value	38,291	84,714
Debt Securities, Held-to-Maturity:
Amortized Cost	25,934	26,021
Unrealized Gains	208	84
Unrealized Losses	17	635
Fair Value	26,125	25,470
Taxable Municipal securities [Member]
Debt Securities, Available-for-Sale:
Amortized Cost	16,196	17,654
Unrealized Gains	331	102
Unrealized Losses	5	234
Fair Value	16,522	17,522
Debt Securities, Held-to-Maturity:
Amortized Cost	8,097	3,700
Unrealized Gains	194	0
Unrealized Losses	0	146
Fair Value	$ 8,291	$ 3,554

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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