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Note 8 - Leases - Undiscounted Future Lease Payments Under Operating Leases and Financial Leases (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Mar. 31, 2021
--- | --- | ---
Year one, operating lease | $ 14,779 | $ 18,606
Year one, financing lease | 9,247 | 7,665
Year two, operating lease | 8,969 | 14,042
Year two, financing lease | 7,725 | 7,665
Year three, operating lease | 5,130 | 7,118
Year three, financing lease | 4,361 | 6,096
Year four, operating lease | 2,912 | 3,572
Year four, financing lease | 3,274 | 2,713
Year five, operating lease | 2,460 | 1,729
Year five, financing lease | 2,216 | 1,625
Thereafter, operating lease | 5,063 | 3,151
Thereafter, financing lease | 3,874 | 2,786
Total minimum payment required, operating | 39,313 | 48,218
Total minimum payment required, financing | 30,697 | 28,550
Less interest, operating | 3,186 | 3,402
Less interest, financing | 2,329 | 2,540
Present value of minimum lease payments, operating | 36,127 | 44,816
Present value of minimum lease payments, financing | 28,368 | 26,010
Long-term lease obligation, operating | 22,533 | 27,769
Long-term lease obligation, financing | 19,942 | 19,232
Current Portion of Long-term Debt and Lease Obligations [Member] |  |
Amount due within one year, operating | 13,594 | 17,047
Amount due within one year, financing | $ 8,426 | $ 6,778

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