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Consolidated Statement Of Stockholders' Equity (Parenthetical) (USD $)	Sep. 30, 2003 Issued For Cash At $0.01 Per Unit [Member]	Sep. 30, 2004 Issued For Cash At $10.00 Per Unit [Member]	Sep. 30, 2003 Issued For Cash At $10.00 Per Unit [Member]	Sep. 30, 2004 Issued For Marketable Securities At $10.00 Per Unit [Member]	Sep. 30, 2004 Issued For Cash At $15.00 Per Unit [Member]	Sep. 30, 2004 Issued as a Gift for $10.90 Per Share [Member]	Sep. 30, 2004 Issued As Stock Issuance Cost At $15.00 Per Unit [Member]	Sep. 30, 2004 Exercised At $2.00 Per Share [Member]	Sep. 30, 2005 Exercised At $10.00 Per Share [Member]	Sep. 30, 2004 Exercised At $10.00 Per Share [Member]	Sep. 30, 2005 Exercised At $15.00 Per Share [Member]	Sep. 30, 2005 Issued To Purchase Insert Therapeutics Share At $39.80 Per Share [Member]	Sep. 30, 2006 Issued At $48.80 Per Share [Member]	Sep. 30, 2006 Issued At $38.40 Per Share [Member]	Sep. 30, 2006 Issued At $35.00 Per Share [Member]	Sep. 30, 2006 Issued At $59.10 Per Share [Member]	Sep. 30, 2006 Issued To Purchase Calando Pharmaceuticals Inc At $51.70 Per Share [Member]	Sep. 30, 2007 Issued At $57.80 Per Share [Member]	Sep. 30, 2007 Issued For Purchase Of Carbon Nanotechnologies Inc At $37.70 Per Share [Member]	Sep. 30, 2008 Issued At Approximately $18.00 Per Share Net [Member]	Sep. 30, 2008 Issued At $27.20 Per Share To Rice University [Member]	Sep. 30, 2008 Issued At $28.30 Per Share To Purchase Shares Of Unidym Inc [Member]	Sep. 30, 2008 Issued At $29.50 per Share To Purchase MASA Energy LLC [Member]	Sep. 30, 2008 Issued At $21.90 Per Share To Unidym For The Acquisition Of Nanoconduction [Member]	Sep. 30, 2008 Issued At $21.80 Per Share [Member]	Sep. 30, 2009 Issued At $5.50 Per Share To Unidym Stockholder In Exchange For Unidym's Shares [Member]	Sep. 30, 2009 Issued At $5.20 Per Share To TEL Ventures In Exchange For Unidym's Shares [Member]	Sep. 30, 2009 Issued At $3.00 Per Share [Member]	Sep. 30, 2010 Issued At $6.30 Per Share [Member]	Sep. 30, 2010 Issued At $13.12 Per Share [Member]	Mar. 31, 2012 Issued At $3.80 Per Share [Member]	Sep. 30, 2011 Issued At $3.80 Per Share [Member]	Mar. 31, 2012 Issued At $3.70 Per Share [Member]	Mar. 31, 2012 Issued at $4.00 Per Share [Member]	Mar. 31, 2012 Preferred Stock Issued At $1,000 Per Share [Member]
Common stock & warrants issued for cash, price per unit	$ 0.01	$ 10	$ 10	$ 10	$ 15	$ 10.9	$ 15
Exercise of stock options, price per share								$ 2	$ 10	$ 10	$ 15
Common stock issued, par value per share												$ 39.8	$ 48.8	$ 38.4	$ 35	$ 59.1	$ 51.7	$ 57.8	$ 37.7	$ 18	$ 27.2	$ 28.3	$ 29.5	$ 21.9	$ 21.8	$ 5.5	$ 5.2	$ 3	$ 6.3	$ 13.12	$ 3.80	$ 3.8	$ 3.70	$ 4.00
Preferred stock issued, par value per share																																			$ 1,000