Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Preferred stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,445,598	2,445,598
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	47,000,000	47,000,000
Common stock, shares issued	20,680,717	20,680,717
Common stock, shares outstanding	20,571,479	20,559,054
Treasury stock, shares	109,238	121,663