Other Comprehensive Income (Loss), Summary of Transfer of AFS Securities to HTM (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	$ 0	$ 0	$ 0
Net unrealized losses transferred during the period	(23)	0	0
Amortization of net unrealized losses	(51)	0	0
Related deferred taxes	26	0	0
Net change	(48)	0	0
Balance at end of period	$ (48)	$ 0	$ 0

Other Comprehensive Income (Loss), Accumulated Unrealized Gain (Loss) on Transfer of Available-for-sale Securities to Held-to-maturity

No definition available.

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Other Comprehensive Income (Loss), Amortization of Net Unrealized Losses on Transfers of Available-for-Sale securities to Held-to-Maturity

No definition available.

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Other Comprehensive Income (Loss), Transfers from Available-for-Sale Securities to Held-to-maturity, before Tax

No definition available.

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Other Comprehensive Income (Loss), Transfers from Available-for-Sale Securities to Held-to-maturity, Net of Tax

No definition available.

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Other Comprehensive Income (Loss), Transfers from Available-for-Sale Securities to Held-to-Maturity, Tax

No definition available.

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