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Financial Information Relating to Operating Segments (Detail) (USD $)
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3 Months Ended | 9 Months Ended | 12 Months Ended | ||
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Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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Dec. 31, 2012
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| Segment Reporting Information [Line Items] | |||||
| Total revenues from external customers | $ 5,313,486 | $ 1,250,515 | $ 18,982,195 | $ 3,452,067 | |
| Segment (loss) income | (1,543,202) | (115,063) | (1,968,099) | (5,735,575) | |
| Corporate expenses | (1,512,932) | (594,841) | (5,296,564) | (2,343,487) | |
| Change in fair value of embedded derivative | (6,990,353) | ||||
| Interest income | 17 | 31 | 107 | ||
| Interest expense | (24,071) | (79,452) | (24,114) | (210,014) | |
| Gain on debt restructuring | 1,048,308 | 1,048,308 | 1,048,000 | ||
| Other income (expense) | 17 | 3,532 | 107 | ||
| Loss from continuing operations | (3,080,205) | 258,969 | (13,532,848) | (7,240,661) | |
| Segment depreciation and amortization | 525,657 | 57,977 | 2,570,980 | 289,444 | |
| Corporate depreciation and amortization | 6,401 | 7,245 | 17,275 | 114,182 | |
| Total depreciation and amortization | 532,058 | 65,222 | 2,588,255 | 403,626 | |
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Corporate, Non-Segment
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| Segment Reporting Information [Line Items] | |||||
| Other income (expense) | 746,250 | ||||
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LED Replacement Lamps and Fixtures
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| Segment Reporting Information [Line Items] | |||||
| Total revenues from external customers | 4,446,974 | 117,519 | 16,413,195 | 577,389 | |
| Segment (loss) income | (1,554,003) | (161,487) | (1,885,966) | (5,631,881) | |
| Segment depreciation and amortization | 470,046 | 385 | 2,399,948 | 110,911 | |
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LED Singnage and Lighting Strips
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| Segment Reporting Information [Line Items] | |||||
| Total revenues from external customers | 866,512 | 1,132,996 | 2,568,854 | 2,874,678 | |
| Segment (loss) income | 10,801 | 46,424 | (82,133) | (103,694) | |
| Segment depreciation and amortization | $ 55,610 | $ 57,592 | $ 171,032 | $ 178,533 | |