Fair Value Measurements (Detail 2) - Common stock warrants [Member] - USD ($)	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Fair Value Disclosure [Line Items]
Balance beginning	$ 4,145	$ 30,278
Change in fair value	2,795	(6,886)
Balance ending	$ 6,940	$ 23,392

Amount of increase (decrease) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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