Equity Plans (Tables)

6 Months Ended

Jun. 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 six months ended June 30, 2017 and 2016.



	Three months ended June 30,			Six months ended June 30,
	2017		2016	2017		2016
Adjustments to additional paid-in capital and common stock for:
Compensation costs charged to income:
ESPP	$	—	—	$	100	79
Restricted stock and deferred restricted stock	458		379	944		773
Total compensation costs charged to income	$	458	379	$	1,044	852
Excess tax benefits realized from stock issuance:
Restricted stock and deferred restricted stock	$	—	94	$	—	202
Total excess tax benefits realized from stock issuance	$	—	94	$	—	202
Proceeds from ESPP and similar instruments:
ESPP	$	—	—	$	570	451
Total proceeds from the ESPP and similar instruments	$	—	—	$	570	451