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Note 6 - Supplemental Balance Sheets Information - Other Accrued Expenses (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020
--- | --- | ---
Accrued business taxes | $ 2,851 | $ 3,796
Interest payable | 889 | 296
Professional services fees | 382 | 857
Other | 807 | 298
Total other accrued expenses | 5,944 | 6,342
Other Accrued Expenses [Member] |  |
Current lease liabilities | $ 1,015 | $ 1,095

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