Annual report pursuant to Section 13 and 15(d)

Fair Value of Financial Instruments (Details)

v3.3.1.900
Fair Value of Financial Instruments (Details) - USD ($)
$ in Thousands
Jan. 02, 2016
Dec. 27, 2014
Assets    
Assets measured at fair value, Adjusted cost $ 46,207  
Asset measured at, fair value 44,174  
Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 46,207 $ 44,713
Assets measured at fair value, Unrealized gains 37 73
Assets measured at fair value, Unrealized losses (2,070) (1,433)
Asset measured at, fair value 44,174 43,353
Level 1 [Member] | Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 3,929 5,251
Assets measured at fair value, Unrealized gains 29 67
Assets measured at fair value, Unrealized losses (274) (509)
Asset measured at, fair value 3,684 4,809
Liabilities    
Liabilities measured at fair value, Adjusted cost   30
Liabilities measured at fair value, Unrealized gains 0 0
Liabilities measured at fair value, Unrealized losses 0 0
Liabilities measured at fair value 17 30
Convertible Debt, Fair Value Disclosures 17  
Level 1 [Member] | Phantom stock units [Member] | Recurring [Member]    
Liabilities    
Liabilities measured at fair value, Adjusted cost 17 30
Liabilities measured at fair value, Unrealized gains 0 0
Liabilities measured at fair value, Unrealized losses 0 0
Liabilities measured at fair value 17 30
Level 1 [Member] | Equity securities [Member] | Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 1,318 2,145
Assets measured at fair value, Unrealized gains 28 65
Assets measured at fair value, Unrealized losses (36) (282)
Asset measured at, fair value 1,310 1,928
Level 1 [Member] | Mutual funds [Member] | Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 2,611 3,106
Assets measured at fair value, Unrealized gains 1 2
Assets measured at fair value, Unrealized losses (238) (227)
Asset measured at, fair value 2,374 2,881
Level 2 [Member] | Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 42,278 39,462
Assets measured at fair value, Unrealized gains 8 6
Assets measured at fair value, Unrealized losses (1,796) (924)
Asset measured at, fair value 40,490 38,544
Level 2 [Member] | Corporate fixed income [Member] | Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 35,936 33,740
Assets measured at fair value, Unrealized gains 8 6
Assets measured at fair value, Unrealized losses (1,682) (868)
Asset measured at, fair value 34,262 32,878
Level 2 [Member] | Municipal bonds [Member] | Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 2,897 2,441
Assets measured at fair value, Unrealized gains 0 0
Assets measured at fair value, Unrealized losses (94) (33)
Asset measured at, fair value 2,803 2,408
Level 2 [Member] | Certificates of deposit [Member] | Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 2,947 2,439
Assets measured at fair value, Unrealized gains 0 0
Assets measured at fair value, Unrealized losses 0 0
Asset measured at, fair value 2,947 2,439
Level 2 [Member] | Asset backed securities [Member] | Recurring [Member]    
Assets    
Assets measured at fair value, Adjusted cost 498 842
Assets measured at fair value, Unrealized gains 0 0
Assets measured at fair value, Unrealized losses (20) (23)
Asset measured at, fair value $ 478 $ 819