Acquisition of Visalia Community Bank - Proforma Results of Operations (Details) (Visalia Community Bank, USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Visalia Community Bank
Business Acquisition, Pro Forma Information [Abstract]
Net interest income	$ 27,581
Provision for credit losses	298
Non-interest income	6,611
Non-interest expense	28,619
Income before provision for income taxes	5,275
Provision for income taxes	375
Net income	$ 4,900
Basic earnings per share	$ 0.46
Diluted earnings per share	$ 0.46