Consolidated Statements of Changes in Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning Balances at Dec. 31, 2008	$ 105,174	$ 11,030	$ 68,371	$ 23,019	$ 2,754
Beginning Balances (in shares) at Dec. 31, 2008		11,030,288
Net Income	12,218			12,218
Other Comprehensive Income	1,861				1,861
Cash Dividends ($.56 per share)	(6,196)			(6,196)
Issuance of Common Stock for:
Exercise of Stock Options (in shares)		3,354
Exercise of Stock Options	9	3	6
Employee Stock Purchase Plan	(2)		(2)
Restricted Share Grants (in shares)		43,740
Restricted Share Grants	485	44	441
Ending Balances at Dec. 31, 2009	113,549	11,077	68,816	29,041	4,615
Ending Balances (in shares) at Dec. 31, 2009		11,077,382
Net Income	13,405			13,405
Other Comprehensive Income	285				285
Cash Dividends ($.56 per share)	(6,214)			(6,214)
Issuance of Common Stock for:
Exercise of Stock Options (in shares)		3,698
Exercise of Stock Options	35	4	31
Employee Stock Purchase Plan	(30)		(30)
Restricted Share Grants (in shares)		24,503
Restricted Share Grants	405	24	381
Income Tax Benefit From Restricted Share Grant	99		99
Ending Balances at Dec. 31, 2010	121,534	11,105	69,297	36,232	4,900
Ending Balances (in shares) at Dec. 31, 2010		11,105,583
Net Income	20,249			20,249
Other Comprehensive Income	5,643				5,643
Cash Dividends ($.56 per share)	(7,047)			(7,047)
Issuance of Common Stock for:
Exercise of Stock Options (in shares)		1,652
Exercise of Stock Options	12	2	10
Acquisition of American Community Bancorp, Inc (in shares)		1,448,520
Acquisition of American Community Bancorp, Inc	26,572	1,449	25,123
Employee Stock Purchase Plan	(25)		(25)
Restricted Share Grants (in shares)		38,503
Restricted Share Grants	635	38	597
Income Tax Benefit From Restricted Share Grant	37		37
Ending Balances at Dec. 31, 2011	$ 167,610	$ 12,594	$ 95,039	$ 49,434	$ 10,543
Ending Balances (in shares) at Dec. 31, 2011		12,594,258