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COMMITMENTS AND CONTINGENCIES (Tables) | 12 Months Ended
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Apr. 30, 2017
COMMITMENTS AND CONTINGENCIES [Abstract] |
Schedule of Expected Timing of Ground and Air Rights Lease Payments | The expected timing of ground and air rights lease payments as of April 30, 2017 is as follows:
|  | (in thousands) |
Fiscal Year Ended April 30, |  | Lease Payments |
2018 |  | $ | 331 |
2019 |  |  | 332 |
2020 |  |  | 333 |
2021 |  |  | 335 |
2022 |  |  | 336 |
Thereafter |  |  | 8,167 |
Total |  | $ | 9,834 |

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- Definition Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount. + References No definition available. + Details
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