Fair Value Measurements - Change in Fair Value of Contingent Consideration Obligations (Detail) (USD $)	Mar. 31, 2014	Sep. 30, 2013	Sep. 30, 2012
Business Acquisition Contingent Consideration [Line Items]
Value, Beginning balance	$ 1,595,273	$ 1,595,273	$ 173,621
Purchase price contingent consideration
Contingent consideration payments
Change in fair value of contingent consideration			1,421,652
Value, Ending balance	$ 1,595,273	$ 1,595,273	$ 173,621

Amount of liability recognized arising from contingent consideration in a business combination.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 35

-Paragraph 1

-Subparagraph b

-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant