Note 11 - Held-to-maturity Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Sep. 29, 2018
Due in one year or less, amortized cost	$ 12,465	$ 21,048
Due in one year or less, fair market value	12,399	21,001
Due after one year through five years, amortized cost	130,857	118,765
Due after one year through five years, fair market value	129,548	117,314
Due after five years through ten years, amortized cost	0	0
Due after five years through ten years, fair market value	0	0
Total held to maturity securities, amortized cost	143,322	139,813
Total held to maturity securities, fair market value	141,947	138,314
Less current portion, amortized cost	12,465	21,048
Less current portion, fair market value	12,399	21,001
Long term held to maturity securities, amortized cost	130,857	118,765
Long term held to maturity securities, fair market value	$ 129,548	$ 117,314

The current portion of fair value of investments in debt securities classified as held-to-maturity.

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The non-current portion of fair value of investments in debt securities classified as held-to-maturity.

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Amount of investment in debt security measured at amortized cost (held-to-maturity).

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Amount of investment in debt security measured at amortized cost (held-to-maturity), classified as current.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at amortized cost (held-to-maturity), classified as noncurrent.

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