Equity Plans (Tables)

6 Months Ended

Jun. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan

A summary of compensation costs charged to income, proceeds from the exercise of stock options and similar instruments, and the tax benefit realized from stock options and similar instruments exercised, that were recorded to additional paid-in capital and common stock, by award type, are presented below for the three and six months ended June 30, 2014 and 2013.

	Three months ended June 30,			Six months ended June 30,
	2014		2013	2014		2013
Adjustments to additional paid-in capital and common stock for:
Compensation costs charged to income:
ESPP	$	—	—	$	72	58
Restricted stock and deferred restricted stock	207		242	379		531
Total compensation costs charged to income	$	207	242	$	451	589
Excess tax benefits realized from share options exercised and stock issuance:
Stock options	$	—	—	$	59	—
Restricted stock and deferred restricted stock	251		65	250		95
Total excess tax benefits realized from share options exercised and stock issuance	$	251	65	$	309	95
Proceeds from the exercise of stock options and similar instruments:
Stock options	$	—	—	$	44	—
DRSPP	8		21	34		38
ESPP	—		—	406		328
Total proceeds from the exercise of stock options and similar instruments	$	8	21	$	484	366