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Note 6 - Supplemental Balance Sheets Information (Tables) | 6 Months Ended
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Sep. 30, 2020
Notes Tables |
Schedule of Employee Related Liabilities [Table Text Block] |
|  | September 30, 2020 |  |  | March 31, 2020 |
Bonus payable |  | $ | 1,771 |  |  | $ | 4,069 |
Wages payable |  |  | 2,146 |  |  |  | 2,485 |
Payroll related taxes |  |  | 1,504 |  |  |  | 2,228 |
Other benefits payable |  |  | 190 |  |  |  | 158 |
Total accrued payroll and benefits |  | $ | 5,611 |  |  | $ | 8,940 |
Schedule of Accrued Liabilities [Table Text Block] |
|  | September 30, 2020 |  |  | March 31, 2020 |
Accrued business taxes |  | $ | 1,965 |  |  | $ | 3,796 |
Current operating lease liabilities |  |  | 945 |  |  |  | 1,095 |
Interest payable |  |  | 296 |  |  |  | 296 |
Professional services fees |  |  | 494 |  |  |  | 857 |
Other |  |  | 1,053 |  |  |  | 298 |
Total other accrued expenses |  | $ | 4,753 |  |  | $ | 6,342 |

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