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Note 8 - Marketable Securities - Short-term and Long-term Available for Sale Securities (Details) $ in Thousands | Sep. 30, 2022 USD ($)
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Amortized Cost | $ 56,062
Unrealized Gains | 0
Unrealized Losses | (1,552)
Fair Value | 54,510
US States and Political Subdivisions Debt Securities [Member] |
Amortized Cost | 17,991
Unrealized Gains | 0
Unrealized Losses | (494)
Fair Value | 17,497
Corporate Debt Securities [Member] |
Amortized Cost | 9,602
Unrealized Gains | 0
Unrealized Losses | (259)
Fair Value | 9,343
US Government Agencies Debt Securities [Member] |
Amortized Cost | 25,780
Unrealized Gains | 0
Unrealized Losses | (787)
Fair Value | 24,993
Bank Time Deposits [Member] |
Amortized Cost | 1,189
Unrealized Gains | 0
Unrealized Losses | (11)
Fair Value | 1,178
Commercial Paper, Not Included with Cash and Cash Equivalents [Member] |
Amortized Cost | 1,500
Unrealized Gains | 0
Unrealized Losses | (1)
Fair Value | $ 1,499

X
- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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X
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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