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Note D - Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Right-of-use Assets, operating leases | $ 19,569 |  | $ 23,793
Right-of-use Assets, finance leases | 810 |  | 957
Right-of-use Assets, total | 20,379 |  | 24,750
Short-term lease liabilities, total | 6,615 |  | 6,663
Long-term lease liabilities, total | 17,546 |  | 21,295
Total Lease Liabilities, finance leases | 462 |  |
Short-term Lease Liabilities [Member] |  |  |
Short-term lease liabilities, operating leases | 6,410 |  | 6,436
Short-term lease liabilities, finance leases | 205 |  | 227
Short-term lease liabilities, total | 6,615 |  | 6,663
Long-term Lease Liabilities [Member] |  |  |
Long-term lease liabilities, operating leases | 17,289 |  | 20,892
Long-term lease liabilities, finance leases | 257 |  | 403
Long-term lease liabilities, total | 17,546 |  | 21,295
Short-term Lease Liabilities and Long-term Lease Liabilities [Member] |  |  |
Total Lease Liabilities, operating leases | 23,699 | [1] | 27,328
Total Lease Liabilities, finance leases | 462 |  | 630
Total Lease Liabilities, total | $ 24,161 |  | $ 27,958
[1] | Non-cancelable sublease proceeds for the remainder of the fiscal year ending December 31, 2021 and the fiscal years ending December 31, 2022 and 2023 of $0.2 million, $0.6 million, and $0.2 million, respectively, are not included in the table above.

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