Equity Plans (Tables)

9 Months Ended

Sep. 30, 2017

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 nine months ended September 30, 2017 and 2016.



	Three months ended September 30,			Nine months ended September 30,
	2017		2016	2017		2016
Adjustments to additional paid-in capital and common stock for:
Compensation costs charged to income:
ESPP	$	114	89	$	214	168
Restricted stock and deferred restricted stock	475		375	1,419		1,148
Total compensation costs charged to income	$	589	464	$	1,633	1,316
Excess tax benefits realized from stock issuance:
Restricted stock and deferred restricted stock	$	—	1	$	—	203
Total excess tax benefits realized from stock issuance	$	—	1	$	—	203
Proceeds from ESPP and similar instruments:
ESPP	$	645	503	$	1,215	954
Total proceeds from the ESPP and similar instruments	$	645	503	$	1,215	954