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Investment (Income), Net | 3 Months Ended
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Aug. 31, 2016
Other Income And Expenses [Abstract] |
Investment (Income), Net | NOTE 5 - INVESTMENT (INCOME), NET Investment (income), net, consists of the following components:
|  | Three Months Ended |
|  | August 31, |
(In thousands) |  | 2016 |  |  | 2015 |
Interest (income) |  | $ | (1,140 | ) |  | $ | (1,364 | )
(Gain) on sale of marketable securities |  |  | (2,584 | ) |  |  | (2,376 | )
Other-than-temporary impairment on securities |  |  | 186 |  |  |  | - |
Dividend (income) |  |  | (300 | ) |  |  | (328 | )
Investment (income), net |  | $ | (3,838 | ) |  | $ | (4,068 | )

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