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Organization and Significant Accounting Policies - Additional Information (Detail) (USD $) | 1 Months Ended | 12 Months Ended | 113 Months Ended |  |  | 1 Months Ended |  | 12 Months Ended |  | 12 Months Ended
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Jan. 31, 2011 | Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Oct. 21, 2011 Employees | Sep. 30, 2010 | Dec. 31, 2012 Subsequent Events [Member] | Sep. 30, 2012 Nanotope, Inc [Member] | Sep. 30, 2012 Wisepower [Member] | Sep. 30, 2011 Wisepower [Member] | Sep. 30, 2012 Minimum [Member] | Sep. 30, 2012 Maximum [Member]
Schedule of Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cash for fund operation |  | $ 3,377,288 | $ 7,507,389 | $ 3,377,288 |  | $ 6,847,162 |  |  |  |  |  |
Cash position decreased during year |  | (4,130,101) | 660,227 | 3,377,288 |  |  |  |  |  |  |  |
Cash from issuance of equity |  | 11,000,000 |  |  |  |  | 4,300,000 |  |  |  |  |
Proceeds from sale of investments |  | 509,009 | 1,534,687 | 3,313,609 |  |  |  |  | 500,000 |  |  |
Proceeds from Revenue |  | 200,000 |  |  |  |  |  |  |  |  |  |
Cash outflow from continuing operations |  | (15,340,090) | (7,655,993) | (75,877,796) |  |  |  |  |  |  |  |
Capital expenditures |  | 500,000 |  |  |  |  |  |  |  |  |  |
Non cash consideration received in sale of interest in subsidiary, shares | 2,500,000 |  |  |  |  |  |  |  |  |  |  |
Non cash consideration received in sale of interest in subsidiary, bonds | 2,500,000 |  |  |  |  |  |  |  |  |  |  |
Non cash consideration received in sale of interest in subsidiary owed to third party | 200,000 |  |  |  |  |  |  |  |  |  |  |
Face value of convertible bond |  | 2,500,000 |  | 2,500,000 |  |  |  |  |  |  |  |
Redemption date of bonds |  | January 17, 2013 |  |  |  |  |  |  |  |  |  |
Subscription Receivable |  | 1,016,000 | 900,000 | 1,016,000 |  |  |  |  |  |  |  |
Drawing Limit under Equity Line Facility |  |  |  |  |  |  |  |  |  | 15,000,000 |  |
Proceeds from equity line facility |  | 1,000,000 |  |  |  |  |  |  |  |  |  |
Minimum stock price required to maintain under equity line facility |  |  |  |  |  |  | $ 2,000,000 |  |  |  |  |
Shares issued under public offering |  |  |  |  |  |  | 1,900,000 |  |  |  |  |
Shares issued under public offering, price per share |  |  |  |  |  |  | $ 2.26 |  |  |  |  |
Warrant to purchase share of Common Stock |  |  |  |  |  |  | 0.5 |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  | 2.20 |  |  |  |  |
Promissory note |  |  |  |  |  |  | 500,000 |  |  |  |  |
Promissory note, maturity date |  | Nov. 26, 2013 |  |  |  |  | Feb. 01, 2013 |  |  |  |  |
Number of employees at the time of acquisition |  |  |  |  | 41 |  |  |  |  |  |  |
Accumulated deficit |  | (134,997,680) | (113,871,752) | (134,997,680) |  |  |  |  |  |  |  |
Amount insured in FDIC per account |  | 250,000 |  | 250,000 |  |  |  |  |  |  |  |
Property and equipment, useful lives |  |  |  |  |  |  |  |  |  |  | 3 years | 7 years
Percentage of investment ownership |  |  |  |  |  |  |  | 20.00% |  |  |  |
Equity method investments, book value |  |  | 1,649,748 |  |  |  |  | 0 |  |  |  |
Minority equity investment, book value |  | $ 0 |  | $ 0 |  |  |  |  |  |  |  |

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