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Intangible Assets (Tables) | 12 Months Ended
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Mar. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets | Intangible assets at March 31, 2015 and 2014 consisted of the following (in thousands):
| 2015 |  |  | 2014 |  |  |
| Gross |  |  | Accumulated |  |  | Net Book |  |  | Gross |  |  | Accumulated |  |  | Net Book |  |  | Estimated
| Amount |  |  | Amortization |  |  | Value |  |  | Amount |  |  | Amortization |  |  | Value |  |  | Useful Life
Licenses | $ | 4,422 |  |  | $ | (3,328 | ) |  | $ | 1,094 |  |  | $ | 4,473 |  |  | $ | (2,962 | ) |  | $ | 1,511 |  |  | 7
Core technology and know-how |  | 4,858 |  |  |  | (4,530 | ) |  |  | 328 |  |  |  | 5,736 |  |  |  | (5,252 | ) |  |  | 484 |  |  | 5-10
Intangible assets | $ | 9,280 |  |  | $ | (7,858 | ) |  | $ | 1,422 |  |  | $ | 10,209 |  |  | $ | (8,214 | ) |  | $ | 1,995 |  |  |
Schedule of Expected Future Amortization Expense | Expected future amortization expense related to intangible assets is as follows (in thousands):
For the years ended March 31, | Total |
2016 | $ | 568 |
2017 |  | 553 |
2018 |  | 301 |
2019 |  | - |
Total | $ | 1,422 |
Schedule of Geographic Composition of Goodwill and Intangible Assets | The geographic composition of intangible assets is as follows (in thousands):
| March 31, |
| 2015 |  |  | 2014 |
Intangible assets by geography: |  |  |  |  |  |  |
U.S. | $ | 1,422 |  |  | $ | 1,995 |
Europe |  | - |  |  |  | - |
Total | $ | 1,422 |  |  | $ | 1,995 |
Schedule of Business Segment Composition of Intangible Assets | The business segment composition of intangible assets is as follows (in thousands):
| March 31, |
| 2015 |  |  | 2014 |
Intangible assets by business segments: |  |  |  |  |  |  |
Wind | $ | - |  |  | $ | - |
Grid |  | 1,422 |  |  |  | 1,995 |
Total | $ | 1,422 |  |  | $ | 1,995 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + 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=26713463&loc=d3e16323-109275 + Details
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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 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 2: 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=26713463&loc=d3e16323-109275 + Details
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