Income Taxes - Deferred Tax Assets, Net (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Deferred tax assets:
Allowance for loan losses	$ 8,099	$ 9,853
Other than temporary impairment	829	827
Accrued liabilities	188	220
OREO property	119	3,767
Net operating loss	16,803	19,627
Sidus goodwill	811	921
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross	763	0
Other	2,165	2,160
Deferred tax assets, gross	29,777	37,375
Less: Valuation Allowance	0	0
Deferred tax assets, net of valuation allowance	29,777	37,375
Deferred tax liabilities:
Unrealized gain on available-for-sale securities	0	(2,583)
FMV adjustment related to mergers	(119)	(181)
Depreciation	(1,753)	(1,561)
Prepaid expenses	(342)	(358)
Other	(2)	(142)
Deferred tax liabilities	(3,189)	(6,017)
Net deferred tax asset	26,588	31,358	[1]
Core deposit intangible
Deferred tax liabilities:
Intangibles	(826)	(1,043)
Noncompete intangible
Deferred tax liabilities:
Intangibles	$ (147)	$ (149)

[1] Derived from audited consolidated financial statements