Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Sep. 30, 2015	Dec. 31, 2014
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	2,445,598	2,445,598
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	47,000,000	47,000,000
Common stock, shares issued (in shares)	20,680,717	20,680,717
Common stock, shares outstanding (in shares)	20,540,922	20,559,054
Treasury stock, shares (in shares)	139,795	121,663