v3.26.3
Note 5 - Financial Instruments Measured at Fair Value - Short-term Investments by Security Type (Details) - USD ($)
$ in Thousands
Sep. 26, 2026
Dec. 27, 2025
Amortized cost $ 236,585 $ 256,769
Gross unrealized gains 5 172
Gross unrealized losses [1] 945 13
Short term investment 235,645 256,928
Corporate Debt Securities [Member]    
Amortized cost [2] 118,318 150,314
Gross unrealized gains [2] 4 60
Gross unrealized losses [1],[2] 544 13
Short term investment [2] 117,778 150,361
Certificates of Deposit [Member]    
Amortized cost 70,100 58,130
Gross unrealized gains 1 26
Gross unrealized losses [1] 94 0
Short term investment 70,007 58,156
US Treasury Securities [Member]    
Amortized cost 31,650 37,584
Gross unrealized gains 0 68
Gross unrealized losses [1] 257 0
Short term investment 31,393 37,652
Asset-Backed Securities [Member]    
Amortized cost 15,809 10,038
Gross unrealized gains 0 18
Gross unrealized losses [1] 50 0
Short term investment 15,759 10,056
Debt Security, Government, Non-US [Member]    
Amortized cost 708 703
Gross unrealized gains 0 0
Gross unrealized losses [1] 0 0
Short term investment $ 708 $ 703
[1] As of September 26, 2026, the cost and fair value of investments with loss positions were approximately $207.0 million and $206.0 million, respectively. As of December 27, 2025, the cost and fair value of investments with loss positions were both approximately $58.3 million. We evaluated the nature of these investments, creditworthiness of the issuer and the duration of these impairments to determine if a credit-related decline in fair value had occurred and concluded that these losses were temporary and we have the ability and intent to hold these investments to maturity.
[2] Corporate debt securities include investments in financial and other corporate institutions. No single issuer represents a significant portion of the total corporate debt securities portfolio.