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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, net [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]	Sep. 30, 2012 Issued at $3.80 per share [Member]	Sep. 30, 2011 Issued at $3.80 per share [Member]	Sep. 30, 2012 Issued at $3.70 per share [Member]	Sep. 30, 2012 Issued at $4.00 per share [Member]	Sep. 30, 2012 Issued at $6.23 per share [Member]	Sep. 30, 2012 Issued at $5.11 per share [Member]	Sep. 30, 2012 Issued at $2.76 per share [Member]	Sep. 30, 2012 Preferred stock issued @ $1,000 per share [Member]	Mar. 31, 2013 Issued @ $2.26 per share [Member]	Mar. 31, 2013 Issued @ $2.12 per share [Member] [Member]	Mar. 31, 2013 Issued @ $4.49 per share [Member]
Preferred stock issued, par value per share																																						$ 1,000
Common stock & warrants issued for cash, price per unit	$ 0.01	$ 10.0	$ 10.0	$ 10.0	$ 15.0	$ 10.9	$ 15.0
Exercise of stock options, price per share								$ 2.0	$ 10.0	$ 10.0	$ 15.0
Common stock issued, par value per share												$ 39.8	$ 48.8	$ 38.4	$ 35.0	$ 59.10	$ 51.70	$ 57.80	$ 37.7	$ 18.0	$ 27.20	$ 28.3	$ 29.5	$ 21.9	$ 21.8	$ 5.50	$ 5.2	$ 3.0	$ 6.34	$ 13.12	$ 3.80	$ 3.8	$ 3.70	$ 4	$ 6.23	$ 5.11	$ 2.76		$ 2.26	$ 2.12	$ 4.49