STOCK PLANS (Tables)

9 Months Ended

Sep. 25, 2016

STOCK PLANS

Summary of the restricted stock units ("RSUs") activity

		Weighted
		Average Grant
		Date Fair
		Value
Nonvested — December 27, 2015	153,880	$	29.83
Granted	124,690	$	10.62
Vested	(67,335)	$	30.90
Forfeited	(3,730)	$	15.78
Nonvested — September 25, 2016	207,505	$	18.19

Summary of the stock appreciation rights ("SARs") activity

The following table summarizes the stock appreciation rights (“SARs”) activity during the nine months ended September 25, 2016: 

		Weighted		Aggregate
		Average		Intrinsic Value
	SARs	Exercise Price		(in thousands)
Outstanding December 27, 2015	320,125	$	73.49	$	—
Forfeited	(50)	$	27.60
Expired	(8,225)	$	83.46
Outstanding September 25, 2016	311,850	$	73.24	$	—

Summary of stock-based compensation expense

	Quarters Ended				Nine Months Ended
	September 25,		September 27,		September 25,		September 27,
(in thousands)	2016		2015		2016		2015
Stock-based compensation expense	$	348	$	498	$	2,105	$	2,750