Income Taxes - Additional Information (Detail) - USD ($)	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Valuation allowance against deferred tax assets	100.00%
Deferred tax assets	$ 105,452,593	$ 62,227,372
Gross federal net operating loss carry forwards	70,500,000	115,800,000
Gross state net operating loss carry forwards	$ 124,100,000	$ 170,800,000

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Deferred Tax Asset
-URI http://asc.fasb.org/extlink&oid=6510090

Name:	us-gaap_DeferredTaxAssetsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant