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Note D - Leases - Supplemental Balance Sheet Information (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Operating Lease, Right-of-Use Asset $ 18,600 $ 18,600
Finance Lease, Right-of-Use Asset, after Accumulated Amortization 600 600
Right-of-use Assets, total 19,190 19,169
Current portion of lease liabilities, operating leases 5,801  
Current portion of lease liabilities, finance leases 126  
Current portion of lease liabilities, total 5,927 5,747
Long-term lease liabilities, total 16,091 16,575
Total Lease Liabilities, finance leases 165  
Right of Use Assets [Member]    
Operating Lease, Right-of-Use Asset 18,636 18,574
Finance Lease, Right-of-Use Asset, after Accumulated Amortization 554 595
Short-term Lease Liabilities [Member]    
Current portion of lease liabilities, operating leases   5,587
Current portion of lease liabilities, finance leases   160
Current portion of lease liabilities, total   5,747
Long-term Lease Liabilities [Member]    
Long-term lease liabilities, operating leases 16,052 16,523
Long-term lease liabilities, finance leases 39 52
Long-term lease liabilities, total 16,091 16,575
Short-term Lease Liabilities and Long-term Lease Liabilities [Member]    
Total Lease Liabilities, operating leases 21,853 22,110
Total Lease Liabilities, finance leases 165 212
Total Lease Liabilities, total $ 22,018 $ 22,322