Equity Plans (Tables)

9 Months Ended

Sep. 30, 2019

Share-based Payment Arrangement [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 any stock options and similar instruments and the tax benefit realized from any 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 nine months ended September 30, 2019, and 2018.

	Three months ended September 30,			Nine months ended September 30,
	2019		2018	2019		2018
Adjustments to additional paid-in capital and common stock for:
Compensation costs charged to income:
ESPP	$	140	127	$	283	242
Restricted stock and deferred restricted stock	812		377	2,273		1,141
Total compensation costs charged to income	$	952	504	$	2,556	1,383
ESPP proceeds	$	792	718	$	1,603	1,371