Subsequent Events - Additional Information (Detail) (Subsequent Event, USD $)	0 Months Ended
May 29, 2015	May 29, 2015
Subsequent Event
Subsequent Event [Line Items]
Common shares outstanding, minimum valued required to be maintained	$ 5,000,000	$ 5,000,000
NASDAQ annual listing fee	$ 40,000

Minimum amount of net capital required to be maintained by the entity to engage in securities transactions.

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

-Publisher SEC

-Name Rule 15c3

-Number 240

-Section 1

-Paragraph 1

-Subparagraph i

-Article 15c3

-Subsection a

Name:	us-gaap_MinimumNetCapitalRequiredForEntity1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant