Subsequent Event - Additional Information (Detail) (USD $)	6 Months Ended	0 Months Ended
Jun. 30, 2014	Jul. 23, 2014 Subsequent Event [Member] sqft	Jul. 23, 2014 Subsequent Event [Member]
Subsequent Event [Line Items]
Total rental space		33,843
Lease agreement period	5 years	8 years
Lease agreement date	Jul. 23, 2014
Lease commencement date	Nov. 01, 2015
Annual base rent			$ 607,500
Lease expiration date	2015-10

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 10

-Section 55

-Paragraph 40

-Subparagraph (Note 3)

-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

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