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Intangible Assets (Tables) | 9 Months Ended
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Feb. 28, 2013
Intangible assets | A summary of intangible assets as of February 28, 2013 and May 31, 2012 is as follows (in thousands):
|  | February 28, 2013 |  |  | May 31, 2012 |
|  | (unaudited) |  |  |  |  |  |  |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Customer relationships |  | $ | 21,462 |  |  | $ | (3,559 | ) |  | $ | 17,903 |  |  | $ | 12,198 |  |  | $ | (1,973 | ) |  | $ | 10,225 |
Non-compete agreements |  |  | 3,719 |  |  |  | (3,164 | ) |  |  | 555 |  |  |  | 3,136 |  |  |  | (2,844 | ) |  |  | 292 |
Trade names |  |  | 4,075 |  |  |  | (362 | ) |  |  | 3,713 |  |  |  | 2,962 |  |  |  | (207 | ) |  |  | 2,755 |
Technology |  |  | 5,112 |  |  |  | (1,033 | ) |  |  | 4,079 |  |  |  | 5,112 |  |  |  | (634 | ) |  |  | 4,478 |
Licenses |  |  | 649 |  |  |  | — |  |  |  | 649 |  |  |  | 758 |  |  |  | — |  |  |  | 758 |
Total |  | $ | 35,017 |  |  | $ | (8,118 | ) |  | $ | 26,899 |  |  | $ | 24,166 |  |  | $ | (5,658 | ) |  | $ | 18,508 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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