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Property, Plant and Equipment, Net (Tables) | 12 Months Ended
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May 31, 2018
Property, Plant and Equipment [Abstract] |
Property, plant and equipment | Refer below for useful lives by category:
|  | Estimated useful lives
Building and building improvements |  | 39 years
Machinery and equipment |  | 5 to 8 years
Computer software and equipment |  | 3 to 5 years
As of May 31, 2018 and 2017, property, plant and equipment are summarized as follows:
| May 31, 2018 |  | May 31, 2017
(in thousands) |
Building and building improvements | $ | 39,887 |  |  | $ | 40,597 |
Machinery and equipment | 22,668 |  |  | 25,434 |
Computer software and equipment | 24,899 |  |  | 25,668 |
Construction in progress | 2,153 |  |  | 1,464 |
| 89,607 |  |  | 93,163 |
Less accumulated depreciation and amortization | (48,794 | ) |  | (49,652 | )
| 40,813 |  |  | 43,511 |
Land and land improvements | 1,648 |  |  | 1,723 |
| $ | 42,461 |  |  | $ | 45,234 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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