Note 9 - Warrants (Details) (USD $)	6 Months Ended
Jun. 30, 2013
Stockholders' Equity Note [Abstract]
Warrants Not Settleable in Cash, Fair Value Disclosure	$ 100,000
Liabilities, Fair Value Adjustment	$ 10,000

Fair value portion of warrants not settleable in cash classified as equity.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

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