Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

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

The following table summarizes the pre-tax stock-based compensation expense included in reported net income (in thousands): 

	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
Non-qualified stock options	$	—	$	1	$	—	$	5
Restricted stock units	346		962		976		1,678
Board of Directors stock grants	53		79		121		155
Total stock-based compensation expense	$	399	$	1,042	$	1,097	$	1,838