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Critical Accounting Policies and Estimates (Tables) | 6 Months Ended
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Nov. 30, 2019
Accounting Policies [Abstract] |
Schedule of Accrued Liabilities | Accrued liabilities consist of the following (in thousands):
|  | November 30, 2019 |  |  | June 1, 2019 |
Compensation and payroll taxes |  | $ | 3,264 |  |  | $ | 2,846 |
Accrued severance |  |  | 500 |  |  |  | 520 |
Professional fees |  |  | 552 |  |  |  | 471 |
Deferred revenue |  |  | 1,624 |  |  |  | 2,260 |
Other accrued expenses |  |  | 4,896 |  |  |  | 5,176 |
Accrued Liabilities |  | $ | 10,836 |  |  | $ | 11,273 |

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