Consolidated Balance Sheets (Unaudited) (Parentheticals) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	5,000,000	5,000,000
Common stock, shares issued (in shares)	3,762,933	3,762,933
Common stock, shares outstanding (in shares)	3,338,603	3,338,603
Treasury stock, shares (in shares)	424,330	424,330