Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Common stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in Shares)	100,000,000	100,000,000
Common stock, shares issued (in Shares)	19,522,557	19,412,013
Common stock, shares outstanding (in Shares)	19,522,557	19,412,013
Series B Preferred Stock [Member]
Preferred stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in Shares)	5,000,000	5,000,000
Preferred stock, shares issued (in Shares)	4,102,000	4,149,667
Preferred stock, shares outstanding (in Shares)	4,102,000	4,149,667
Undesignated Preferred Stock [Member]
Preferred stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in Shares)	5,000,000	5,000,000
Preferred stock, shares issued (in Shares)	0	0
Preferred stock, shares outstanding (in Shares)	0	0