Basis of presentation and summary of significant accounting policies (Tables)

12 Months Ended

Dec. 31, 2012

Effect Of Changes In Computing Methodology Abstract

Schedule Of Effect Of Changes In Computing Methodology [Table Text Block]

The following table presents the effect of the above methodology changes on the loan loss provision for the year ended December 31, 2011:

	Calculated Provision (Credit) Based on New Methodology			Calculated Provision (Credit) Based on Prior Methodology			Change in Methodology
Commercial real estate:
Owner occupied	$	12,693		$	13,841		$	(1,148	)
Non-owner occupied		17,215			15,256			1,959
Total commercial real estate loans		29,908			29,097			811
Construction		22,019			27,419			(5,400	)
Residential real estate		4,197			5,269			(1,072	)
Commerical and industrial		17,724			16,154			1,570
Consumer		1,511			1,469			42
Unallocated		(359	)		(359	)		—
Total loan loss provision	$	75,000		$	79,049		$	(4,049	)