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Note 8 - Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 11, 2021 | Mar. 11, 2021 | Mar. 08, 2021 | Sep. 24, 2022 | Sep. 24, 2022 | Sep. 25, 2021 | Oct. 25, 2022 | May 04, 2022 | May 03, 2022 | Dec. 25, 2021 | [1] | Oct. 28, 2021
Proceeds from Issuance of Common Stock |  |  |  |  | $ 0 | $ 223,119 |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  |  |  | $ 70,000
Stock Repurchased During Period, Shares (in shares) |  |  |  | 637,700 | 1,355,508 |  |  |  |  |  |
Stock Repurchased During Period, Value |  |  |  | $ 17,700 | $ 38,100 |  |  |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  |  |  | $ 24,600 | $ 24,600 |  |  |  |  |  |
Common Stock, Shares Authorized (in shares) |  |  |  | 90,000,000 | 90,000,000 |  |  | 90,000,000 | 60,000,000 | 90,000,000 |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Additional Authorized Amount |  |  |  |  |  |  | $ 70,000 |  |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  |  |  |  |  |  | $ 94,600 |  |  |  |
Underwritten Public Offering [Member] |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) |  |  | 4,950,000 |  |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) |  |  | $ 41.00 |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  | $ 223,100 |  |  |  |  |  |  |  |  |
Over-Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | 742,500 |  |  |  |  |  |  |  |  |  |
[1] | Derived from December 25, 2021 audited financial statements

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