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Security Types (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	$ 2,990	$ 3,047
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	32,349	25,983
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	55,365	46,274
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	186,659	168,268
Available-for-sale Securities, Fair Value, Total	277,363	243,572
Available For Sale Securities, Gross Unrealized Gains	2,553	2,391
Available For Sale Securities, Gross Unrealized Losses	2,551	3,512
Available-for-sale Securities, Amortized Cost Basis	277,361	244,693
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	2,990	3,047
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	29,535	22,531
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	24,769	19,893
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	0	0
Available-for-sale Securities, Fair Value, Total	57,294	45,471
Available For Sale Securities, Gross Unrealized Gains	298	331
Available For Sale Securities, Gross Unrealized Losses	675	973
Available-for-sale Securities, Amortized Cost Basis	57,671	46,113
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	704	972
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	19,825	16,171
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	127,599	110,644
Available-for-sale Securities, Fair Value, Total	148,128	127,787
Available For Sale Securities, Gross Unrealized Gains	556	551
Available For Sale Securities, Gross Unrealized Losses	1,458	1,805
Available-for-sale Securities, Amortized Cost Basis	149,030	129,041
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	2,110	2,480
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	10,771	10,210
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	59,060	57,624
Available-for-sale Securities, Fair Value, Total	71,941	70,314
Available For Sale Securities, Gross Unrealized Gains	1,699	1,509
Available For Sale Securities, Gross Unrealized Losses	418	734
Available-for-sale Securities, Amortized Cost Basis	$ 70,660	$ 69,539

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-Publisher FASB
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Fair value of available-for-sale debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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