Securities - Schedule of Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
SECURITIES AVAILABLE FOR SALE
Amortized Cost	$ 158,625	$ 160,290
Gross Unrealized Gains	350	731
Gross Unrealized Losses	3,355	1,970
Fair Value	155,620	159,051
SECURITIES HELD TO MATURITY
Amortized Cost	41,378	44,829	$ 53,794
Gross Unrealized Gains	2	57
Gross Unrealized Losses	622	337
Fair Value	40,758	44,549	$ 53,661
U.S. Government and agencies
SECURITIES AVAILABLE FOR SALE
Amortized Cost	108,790	105,899
Gross Unrealized Gains	2	2
Gross Unrealized Losses	2,841	1,818
Fair Value	105,951	104,083
SECURITIES HELD TO MATURITY
Amortized Cost	17,000	19,000
Gross Unrealized Gains	0	2
Gross Unrealized Losses	132	99
Fair Value	16,868	18,903
Mortgage-backed securities, residential
SECURITIES AVAILABLE FOR SALE
Amortized Cost	32,338	34,473
Gross Unrealized Gains	267	461
Gross Unrealized Losses	433	101
Fair Value	32,172	34,833
SECURITIES HELD TO MATURITY
Amortized Cost	24,378	25,829
Gross Unrealized Gains	2	55
Gross Unrealized Losses	490	238
Fair Value	23,890	25,646
State and municipal
SECURITIES AVAILABLE FOR SALE
Amortized Cost	12,497	13,227
Gross Unrealized Gains	81	109
Gross Unrealized Losses	71	42
Fair Value	12,507	13,294
Corporate bonds
SECURITIES AVAILABLE FOR SALE
Amortized Cost	5,000	5,000
Gross Unrealized Gains	0	57
Gross Unrealized Losses	10	0
Fair Value	$ 4,990	5,057
CRA mutual fund
SECURITIES AVAILABLE FOR SALE
Amortized Cost		1,044
Gross Unrealized Gains		0
Gross Unrealized Losses		9
Fair Value		1,035
Stock in other banks
SECURITIES AVAILABLE FOR SALE
Amortized Cost		647
Gross Unrealized Gains		102
Gross Unrealized Losses		0
Fair Value		$ 749

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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