Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Fair Value - Summary of Investments in Marketable Securities (Details)

v3.6.0.2
Note 5 - Fair Value - Summary of Investments in Marketable Securities (Details)
Jan. 01, 2017
USD ($)
Amortized cost $ 190,876,000
Unrealized gross gains 33,000
Unrealized gross losses (174,000)
Fair value 190,735,000
US Government Corporations and Agencies Securities [Member]  
Amortized cost 21,161,000
Unrealized gross gains 13,000
Unrealized gross losses (13,000)
Fair value 21,161,000
Corporate Debt Securities [Member]  
Amortized cost 97,133
Unrealized gross gains 19
Unrealized gross losses (159)
Fair value 96,993
US States and Political Subdivisions Debt Securities [Member]  
Amortized cost 4,196,000
Unrealized gross gains 1,000
Unrealized gross losses (2,000)
Fair value 4,195,000
Money Market Funds [Member]  
Amortized cost 65,114,000
Unrealized gross gains
Unrealized gross losses
Fair value 65,114,000
Certificates of Deposit [Member]  
Amortized cost 3,272,000
Unrealized gross gains
Unrealized gross losses
Fair value $ 3,272,000