Consolidated Statements of Changes in Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Deficit During Development Stage [Member]	Total
Balances at Dec. 31, 2009	$ 11,077	$ 68,816	$ 29,041	$ 4,615	$ 113,549
Balances at Dec. 31, 2009	11,077,382
Net Income			13,405		13,405
Other Comprehensive Income (Loss)				285	285
Cash Dividends ($.56 per share)			(6,214)		(6,214)
Issuance of Common Stock for:
Exercise of Stock Options	4	31			35
Exercise of Stock Options (in shares)	3,698
Employee Stock Purchase Plan		(30)			(30)
Restricted Share Grants	24	381			405
Restricted Share Grants (in shares)	24,503
Income Tax Benefit from Restricted Share Grant		99			99
Balances at Dec. 31, 2010	11,105	69,297	36,232	4,900	121,534
Balances (in shares) at Dec. 31, 2010	11,105,583
Net Income			20,249		20,249
Other Comprehensive Income (Loss)				5,643	5,643
Cash Dividends ($.56 per share)			(7,047)		(7,047)
Issuance of Common Stock for:
Exercise of Stock Options	2	10			12
Exercise of Stock Options (in shares)	1,652
Acquisition of American Community Bancorp, Inc	1,449	25,123			26,572
Acquisition of American Community Bancorp, Inc (in shares)	1,448,520
Employee Stock Purchase Plan		(25)			(25)
Restricted Share Grants	38	597			635
Restricted Share Grants (in shares)	38,503
Income Tax Benefit from Restricted Share Grant		37			37
Balances at Dec. 31, 2011	12,594	95,039	49,434	10,543	167,610
Balances (in shares) at Dec. 31, 2011	12,594,258
Net Income			24,055		24,055
Other Comprehensive Income (Loss)				(192)	(192)
Cash Dividends ($.56 per share)			(7,068)		(7,068)
Issuance of Common Stock for:
Exercise of Stock Options	8	29			37
Exercise of Stock Options (in shares)	7,278				48,089
Employee Stock Purchase Plan		(67)			(67)
Restricted Share Grants	35	593			628
Restricted Share Grants (in shares)	35,120
Income Tax Benefit from Restricted Share Grant		23			23
Balances at Dec. 31, 2012	$ 12,637	$ 95,617	$ 66,421	$ 10,351	$ 185,026
Balances (in shares) at Dec. 31, 2012	12,636,656