Note 11. Shareholder's Equity (Detail) - Nonvested Shares (USD $)	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Nonvested	1,229,261
Nonvested (in Dollars per share)	$ 1.05
Granted	2,094,667	692,000
Granted (in Dollars per share)	$ 0.51	$ 0.67
Forfeited	(1,227,330)	(639,502)
Nonvested	1,961,057	1,229,261
Nonvested (in Dollars per share)	$ 0.83	$ 1.05
Nonvested [Member]
Granted	2,094,667
Granted (in Dollars per share)	$ 0.80
Vested	(419,264)
Vested (in Dollars per share)	$ 0.94
Forfeited	(943,607)
Forfeited (in Dollars per share)	$ 0.99

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(f)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration