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Business Segments | 9 Months Ended
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Dec. 31, 2014
Segment Reporting [Abstract] |
Business Segments | 15. Business Segments The Company reports its financial results in two reportable business segments: Wind and Grid. Through its Windtec Solutions, the Wind business segment enables manufacturers to field wind turbines with highly competitive power output, reliability and affordability. The Company supplies advanced power electronics and control systems, licenses its highly engineered wind turbine designs, and provides extensive customer support services to wind turbine manufacturers. Its design portfolio includes a broad range of drive trains and power ratings of 2 MWs and higher. It provides a broad range of power electronics and software-based control systems that are highly integrated and designed for optimized performance, efficiency, and grid compatibility. Through its Gridtec Solutions, the Grid business segment enables electric utilities and renewable energy project developers to connect, transmit and distribute power with highly competitive efficiency, reliability and affordability. The Company provides transmission planning services that allow it to identify power grid congestion, poor power quality and other risks, which help the Company determine how its solutions can improve network performance. These services often lead to sales of grid interconnection solutions for wind farms and solar power plants, power quality systems and transmission and distribution cable systems. The operating results for the two business segments are as follows (in thousands):
| Three months ended December 31, |  |  | Nine months ended December 31, |
| 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Wind | $ | 15,131 |  |  | $ | 13,545 |  |  | $ | 30,244 |  |  | $ | 42,937 |
Grid |  | 6,119 |  |  |  | 7,018 |  |  |  | 15,157 |  |  |  | 24,893 |
Total | $ | 21,250 |  |  | $ | 20,563 |  |  | $ | 45,401 |  |  | $ | 67,830 |
| Three months ended December 31, |  |  | Nine months ended December 31, |
| 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Operating profit (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Wind | $ | 1,301 |  |  | $ | 1,067 |  |  | $ | (16,790 | ) |  | $ | (3,207 | )
Grid |  | (7,050 | ) |  |  | (4,670 | ) |  |  | (20,016 | ) |  |  | (15,287 | )
Unallocated corporate expenses |  | (1,986 | ) |  |  | (3,072 | ) |  |  | (9,995 | ) |  |  | (8,058 | )
Total | $ | (7,735 | ) |  | $ | (6,675 | ) |  | $ | (46,801 | ) |  | $ | (26,552 | )
The accounting policies of the business segments are the same as those for the consolidated Company. The Company’s business segments have been determined in accordance with the Company’s internal management structure, which is organized based on operating activities. The Company evaluates performance based upon several factors, of which the primary financial measures are segment revenues and segment operating loss. The disaggregated financial results of the segments reflect allocation of certain functional expense categories consistent with the basis and manner in which Company management internally disaggregates financial information for the purpose of assisting in making internal operating decisions. In addition, certain corporate expenses which the Company does not believe are specifically attributable or allocable to either of the two business segments have been excluded from the segment operating loss. Unallocated corporate expenses primarily consist of stock-based compensation expense of $1.5 million and $4.6 million, and restructuring and impairment charges of $0.5 million and $5.4 million, for the three and nine months ended December 31, 2014, respectively. Unallocated corporate expenses primarily consist of stock-based compensation expense of $3.0 million and $7.3 million, respectively, as well as restructuring and impairment charges of $0.1 million and $0.9 million, respectively, for the three and nine months ended December 31, 2013. Total assets for the two business segments are as follows (in thousands):
| December 31, |  |  | March 31, |
| 2014 |  |  | 2014 |
Wind | $ | 52,473 |  |  | $ | 36,701 |
Grid |  | 41,854 |  |  |  | 54,342 |
Corporate assets |  | 62,662 |  |  |  | 77,466 |
Total | $ | 156,989 |  |  | $ | 168,509 |
The following table sets forth customers who represented 10% or more of the Company’s total revenues for the three and nine months ended December 31, 2014 and 2013:
| Three months ended December 31, |  |  | Nine months ended December 31, |
| 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
INOX Wind Limited |  | 61 | % |  |  | 35 | % |  |  | 54 | % |  |  | 25 | %
Beijing JINGCHENG New Energy Co., Ltd | <10 | % |  | <10 | % |  | <10 | % |  |  | 22 | %
CSR Zhuzhou Institute Co., Ltd |  | — | % |  |  | 18 | % |  |  | — | % |  | <10 | %

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599 + Details
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