Balance Sheet (Parentheticals) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Shareholders' Equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	23,634,958	23,462,326
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Treasury shares, at cost	2,938	2,938