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BASIS OF PRESENTATION (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended | 12 Months Ended | 33 Months Ended |  | 0 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2013 | Apr. 30, 2013 Brandon Facility | Aug. 23, 2012 Credit facility | Sep. 30, 2013 Credit facility
Description of Business |  |  |  |  |  |  |  |  |  |  |
Revenue as a percentage of sales associated with new wind turbine installations |  |  |  | 67.00% | 64.00% |  |  |  |  |  |
BASIS OF PRESENTATION |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ 22,826 |  |  | $ 22,826 | $ 2,721 | $ 516 | $ 13,340 | $ 22,826 |  |  |
Increase in liquidity as a result of the sale of manufacturing facility |  |  |  |  |  |  |  |  | 8,000 |  |
Line of credit facilities, term of credit agreements |  |  |  |  |  |  |  |  |  | 3 years |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  | 20,000 |
Maximum borrowing capacity of the face value of eligible receivables (as a percent) |  |  |  |  |  |  |  |  |  | 85.00% |
Maximum percentage of book value of inventories that may be financed |  |  |  |  |  |  |  |  |  | 50.00% |
Current borrowing capacity |  |  |  |  |  |  |  |  |  |  | 15,480
Liquidity |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents and short-term investments | 23,693 |  |  | 23,693 |  | 516 |  | 23,693 |  |  |
Minimum period for which liquidity needs will be met from current cash resources and cash to be generated from operations over the next twelve months |  |  |  | 12 months |  |  |  |  |  |  |
Obligation to make principal payments on outstanding debt during the next twelve months | 342 |  |  | 342 |  |  |  | 342 |  |  |
Restructuring charges incurred | 1,691 | (1,111) | 1,967 |  |  | 5,092 | 874 | 8,513 |  |  |
Expected cost to be incurred to implement the restructuring plan |  |  |  | 13,316 |  |  |  |  |  |  |
Non-cash expenditure expected to be incurred |  |  |  | $ 5,400 |  |  |  |  |  |  |

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