Note 9 - Cash, Cash Equivalents, Investments and Restricted Cash - Investment Maturity Classification (Details) $ in Thousands	Jun. 30, 2020 USD ($)
Due in less than 1 year, Amortized cost	$ 168,329
Due in less than 1 year, fair value	169,259
Due in 1 - 5 years, Amortized cost	183,611
Due in 1 - 5 years	186,581
Due in greater than 5 years, Amortized cost	3,195
Due in greater than 5 years	3,032
Total, Amortized cost	355,135
Total	$ 358,872

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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