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Securities (Held-to-Maturity Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule of Held-to-maturity Securities
Amortized cost	$ 41,885	$ 37,778
Gross unrecognized holding gains	63	177
Gross unrecognized holding losses	(539)	(259)
Estimated Fair Value	41,409	37,696
U.S. government agency obligations - government-sponsored enterprises
Schedule of Held-to-maturity Securities
Amortized cost	1,499	1,499
Gross unrecognized holding gains	0	0
Gross unrecognized holding losses	(9)	(9)
Estimated Fair Value	1,490	1,490
Municipal obligations
Schedule of Held-to-maturity Securities
Amortized cost	21,657	21,680
Gross unrecognized holding gains	48	176
Gross unrecognized holding losses	(129)	(34)
Estimated Fair Value	21,576	21,822
Collateralized mortgage obligations - government issued
Schedule of Held-to-maturity Securities
Amortized cost	8,613	9,072
Gross unrecognized holding gains	0	1
Gross unrecognized holding losses	(232)	(130)
Estimated Fair Value	8,381	8,943
Collateralized mortgage obligations - government-sponsored enterprises
Schedule of Held-to-maturity Securities
Amortized cost	10,116	5,527
Gross unrecognized holding gains	15	0
Gross unrecognized holding losses	(169)	(86)
Estimated Fair Value	$ 9,962	$ 5,441

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- Definition

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

+ References

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-Publisher FASB
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