Note 6 - Long-term Debt - Debt Repayment Requirements (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
2022	$ 4,500
2023	4,000
2024	4,000
2025	4,000
2026	81,869
Thereafter	216
Total	$ 98,585	$ 217,581

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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