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Accrued Liabilities (Tables) | 6 Months Ended
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Nov. 30, 2015
Payables and Accruals [Abstract] |
Accrued Liabilities | As of November 30, 2015 and May 31, 2015, accrued liabilities consisted of the following:
| Nov 30, 2015 |  | May 31, 2015
| (in thousands)
Payroll and related expenses | $ | 7,984 |  |  | $ | 10,330 |
Royalties | 2,444 |  |  | 2,237 |
Accrued severance | — |  |  | 158 |
Sales and franchise taxes | 600 |  |  | 489 |
Interest rate swap liability | 97 |  |  | 257 |
Outside services | 1,876 |  |  | 1,522 |
Consignment liability | 651 |  |  | 447 |
Deferred rent | 24 |  |  | 808 |
Other | 3,299 |  |  | 2,083 |
| $ | 16,975 |  |  | $ | 18,331 |

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