Stock-Based Compensation

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

We recognize compensation expense for stock-based compensation awards issued to employees on a straight-line basis over the requisite service period. Compensation cost is based on the fair value of awards as of the grant date.

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

Pursuant to our 2011 Stock Incentive Plan (the “2011 Plan”), we may grant awards of non-qualified stock options, incentive stock options, restricted stock, stock units, performance shares, performance units and other incentives payable in cash or in shares of our common stock to officers, employees or members of the Board of Directors. As of June 30, 2018, we had non-qualified stock options and restricted and performance stock units outstanding under these plans.