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Securities (Unrealized Losses Held-to-Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value
Less than 12 months	$ 4,659	$ 22,134
12 months or longer	5,991	0
Total	10,650	22,134
Unrealized Losses
Less than 12 months	24	179
12 months or longer	46	0
Total	70	179
U.S. Government agency obligations - government-sponsored enterprises
Fair Value
Less than 12 months	1,000	1,000
12 months or longer	0	0
Total	1,000	1,000
Unrealized Losses
Less than 12 months	5	5
12 months or longer	0	0
Total	5	5
Municipal obligations
Fair Value
Less than 12 months	853	9,472
12 months or longer	260	0
Total	1,113	9,472
Unrealized Losses
Less than 12 months	11	78
12 months or longer	3	0
Total	14	78
Collateralized mortgage obligations - government issued
Fair Value
Less than 12 months	2,806	6,980
12 months or longer	3,804	0
Total	6,610	6,980
Unrealized Losses
Less than 12 months	8	38
12 months or longer	25	0
Total	33	38
Collateralized mortgage obligations - government-sponsored enterprises
Fair Value
Less than 12 months	0	4,682
12 months or longer	1,927	0
Total	1,927	4,682
Unrealized Losses
Less than 12 months	0	58
12 months or longer	18	0
Total	$ 18	$ 58

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
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