Equity Plans (Tables)

6 Months Ended

Jun. 30, 2012

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 are recorded to additional paid-in capital and common stock, by award type, are presented below for the three and six months ended June 30, 2012 and 2011.

	Three months ended June 30,			Six months ended June 30,
	2012		2011	2012		2011
Compensation costs charged to income:
ESPP	$	—	—	$	49	45
Restricted stock and deferred restricted stock	100		126	234		283
Total compensation costs charged to income	$	100	126	$	283	328
Excess tax benefits realized from share options exercised and stock issuance:
Stock options	$	8	—	$	8	—
Restricted stock and deferred restricted stock	35		—	35		7
Total excess tax benefits realized from share options exercised and stock issuance	$	43	—	$	43	7
Proceeds from the exercise of stock options and similar instruments:
Stock options	$	75	—	$	75	—
DRSPP	21		8	52		8
ESPP	—		—	278		254
Total proceeds from the exercise of stock options and similar instruments	$	96	8	$	405	262