Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Stock-Based Compensation [Abstract]

Summary of recognized stock-based compensation expense

The following table summarizes stock-based compensation expense recognized:

	Fiscal quarters ended				Six fiscal months ended
	June 30, 2018		July 1, 2017		June 30, 2018		July 1, 2017
Restricted stock units	$	778	$	676	$	3,047		2,880
Phantom stock units		-		-		214		163
Total	$	778	$	676	$	3,261		3,043

Schedule of unrecognized compensation cost, nonvested awards

The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at June 30, 2018 (amortization periods in years):

	Unrecognized Compensation Cost		Weighted Average Remaining Amortization Periods
Restricted stock units	$	4,616		1.4
Phantom stock units		-		0.0
Total	$	4,616

Schedule of share-based compensation, restricted stock units award activity

RSU activity under the 2007 Program as of June 30, 2018 and changes during the six fiscal months then ended are presented below (number of RSUs in thousands):

	Number of RSUs			Weighted Average Grant-date Fair Value per Unit
Outstanding:
January 1, 2018		986		$	13.34
Granted		252			18.90
Vested*		(334	)		13.67
Cancelled or forfeited		-			-
Outstanding at June 30, 2018		904		$	14.77
Expected to vest at June 30, 2018		904

* The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.

Schedule of share-based compensation arrangement by share-based units, vested and expected to vest

The number of performance-based RSUs that are scheduled to vest increases ratably based on the achievement of defined performance criteria between the established target and maximum levels.  RSUs with performance-based vesting criteria are expected to vest as follows (number of RSUs in thousands):

Vesting Date	Expected to Vest		Not Expected to Vest		Total
January 1, 2019		213		-		213
January 1, 2020		167		-		167
January 1, 2021		141		-		141

Schedule of share-based compensation, phantom stock units, Activity

Phantom stock unit activity under the phantom stock plan as of June 30, 2018 and changes during the six fiscal months then ended are presented below (number of phantom stock units in thousands):

	Number of units		Grant-date Fair Value per Unit
Outstanding:
January 1, 2018		157
Granted		10	$	21.35
Dividend equivalents issued		1
Outstanding at June 30, 2018		168