Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Shareholders' Equity

Summary of shares granted and vested under the terms of the entity's 2009 Plan

	2012				2011				2010
			Weighted				Weighted				Weighted
	Number		Average		Number		Average		Number		Average
	of		Grant Date		of		Grant Date		of		Grant Date
	Shares		Fair Value		Shares		Fair Value		Shares		Fair Value
Unvested shares, beginning of year	64,270		$	23.92	44,320		$	25.21	20,080		$	22.14
Shares granted	93,058		23.72		50,850		23.16		44,450		26.92
Shares vested	(81,224	)	23.77		(30,900	)	24.52		(20,210	)	25.92
Unvested shares, end of year	76,104		23.84		64,270		23.92		44,320		25.21