Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Preferred stock, undesignated, par value (in Dollars per share)	$ 0.10	$ 0.10
Preferred stock, undesignated, shares authorized (in Shares)	2,000,000	2,000,000
Preferred stock, undesignated, shares outstanding (in Shares)	0	0
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in Shares)	125,000,000	125,000,000
Common stock, shares issued (in Shares)	38,952,561	39,352,375
Common stock, shares outstanding (in Shares)	38,952,561	39,352,375