Parent Company Financial Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Parent Company Financial Information
Percentage of capital stock of the Bank held	100.00%
Assets:
Cash and cash equivalents	$ 126,813	$ 59,352
Deferred income taxes	8,477	6,887
Other assets	6,877	3,276
TOTAL ASSETS	1,714,187	1,173,792
Liabilities:
Subordinated debentures	10,310	10,310
Accrued expenses and other liabilities	18,274	8,697
Total liabilities	1,538,961	1,039,275
Total Stockholders' Equity	175,226	134,517	86,777	78,602
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,714,187	1,173,792
Corporation
Assets:
Cash and cash equivalents	2,873	7,027
Deferred income taxes	3,280	4,129
Investment in subsidiaries	179,034	133,560
Other assets	611	411
TOTAL ASSETS	185,798	145,127
Liabilities:
Subordinated debentures	10,310	10,310
Accrued expenses and other liabilities	262	301
Total liabilities	10,572	10,611
Total Stockholders' Equity	175,226	134,516
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 185,798	$ 145,127