Goodwill and Other Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified		6 Months Ended
	Dec. 31, 2011	Jun. 30, 2012 Core Deposits [Member]
Summary of core deposit intangibles
Core deposit intangibles, beginning balance		$ 1,460
Core deposit intangibles, Additions
Core deposit intangibles, Reductions
Core deposit intangibles, ending balance		1,460
Accumulated amortization, beginning balance		(159)
Accumulated amortization, Additions
Accumulated amortization, Reductions		(105)
Accumulated amortization, ending balance		(264)
Core deposit intangibles, net, beginning balance	1,301
Core deposit intangible, net, Additions
Core deposit intangible, net, Reductions		(105)
Core deposit intangibles, net, ending balance	$ 1,301	$ 1,196