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Note 7 - Marketable Securities - Summary of Marketable Securities (Details) $ in Thousands | Sep. 30, 2022 USD ($)
--- | ---
Amortized cost basis | $ 67,380
Unrealized gains | 0
Unrealized losses | (155)
Fair value | 67,225
US Treasury and Government [Member] |
Amortized cost basis | 46,554
Unrealized gains | 0
Unrealized losses | (102)
Fair value | 46,452
Corporate Debt Securities [Member] |
Amortized cost basis | 4,416
Unrealized gains | 0
Unrealized losses | (10)
Fair value | 4,406
Commercial Paper [Member] |
Amortized cost basis | 12,336
Unrealized gains | 0
Unrealized losses | (24)
Fair value | 12,312
Certificates of Deposit [Member] |
Amortized cost basis | 4,074
Unrealized gains | 0
Unrealized losses | (19)
Fair value | $ 4,055

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- 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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- 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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