Note 2 - Liquidity (Details) (USD $)	0 Months Ended		1 Months Ended		9 Months Ended		12 Months Ended
	Aug. 02, 2013	Feb. 05, 2013	Feb. 28, 2013	Aug. 31, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012		Dec. 31, 2010	Dec. 31, 2009	Jun. 30, 2013	Dec. 31, 2011
Policy Text Block [Abstract]
Cash and Cash Equivalents, at Carrying Value					$ 1,402,000	$ 1,775,000	$ 2,536,000	[1]				$ 2,914,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					(755,000)	(2,745,000)
Working Capital											4,225,000
Proceeds from Issuance of Private Placement							2,000,000		7,213,000	5,304,000
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)				3,000,000	3,000,000
Proceeds from Lines of Credit (in Dollars)	1,000,000	1,000,000	1,000,000	1,000,000
Line of Credit Facility, Amount Outstanding					$ 3,000,000

[1] Derived from the audited December 31, 2012 financial statements