XML 14 R3.htm IDEA: XBRL DOCUMENT v3.4.0.3
Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Mar. 31, 2016
Dec. 31, 2015
Common Class A [Member]    
Common stock, shares authorized (in shares) 60,000,000 60,000,000
Common stock, shares outstanding (in shares) 30,153,909 30,303,818
Common Class B [Member]    
Common stock, shares authorized (in shares) 20,000,000 20,000,000
Common stock, shares outstanding (in shares) 10,279,281 10,093,305
Treasury stock, shares (in shares) 2,616,657 2,616,657
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 outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01