Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Series A Preferred Stock [Member]
Convertible Preferred stock liquidation preference (in Dollars per share)	$ 500,000	$ 500,000	[1]
Series C Preferred Stock [Member]
Convertible Preferred stock liquidation preference (in Dollars per share)	$ 1,802,671	$ 1,764,240	[1]

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