STOCK PLANS - Activity (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 27, 2016 USD ($) $ / shares shares
RSUs
RSU's
Nonvested at the beginning of the period (in shares) | shares	1,538,800
Granted (in shares) | shares	1,234,200
Vested (in shares) | shares	(651,300)
Forfeited (in shares) | shares	(12,400)
Nonvested at the end of the period (in shares) | shares	2,109,300
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 2.98
Granted (in dollars per share) | $ / shares	1.06
Vested (in dollars per share) | $ / shares	3.09
Forfeited (in dollars per share) | $ / shares	2.60
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 1.83
Additional disclosures
Total fair value | $	$ 0.7
Stock options and SARs
Options/SARs
Outstanding at the beginning of the period (in shares) | shares	3,201,250
Forfeited (in shares) | shares	(500)
Expired (in shares) | shares	(78,750)
Outstanding at the end of the period (in shares) | shares	3,122,000
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 7.35
Forfeited (in dollars per share) | $ / shares	2.76
Expired (in dollars per share) | $ / shares	8.56
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 7.32