Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Stockholders' Equity:
Blank check preferred stock, par value	$ 0.01	$ 0.01
Blank check preferred stock, authorized shares	5,000,000	5,000,000
Blank check preferred stock, issued shares	0	0
Blank check preferred stock, outstanding shares	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized shares	38,833,334	38,833,334
Common stock, issued shares	20,985,192	20,591,240
Common stock, outstanding shares	20,985,192	20,591,240