UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Accounts receivable, allowance for doubtful accounts (in dollars) $ 865 $ 674
Property and equipment, accumulated depreciation and amortization (in dollars) $ 2,203 $ 1,879
Preferred stock, no par value (in dollars per share)      
Preferred stock, shares authorized 3,000 3,000
Preferred stock, shares issued      
Treasury stock, at cost, shares 1,241 1,241
Class A Common Stock
   
Common stock, no par value (in dollars per share)      
Common stock, shares authorized 30,000 30,000
Common stock, shares issued 20,117 20,069
Common stock, shares outstanding 18,876 18,828
Class B Common Stock
   
Common stock, no par value (in dollars per share)      
Common stock, shares authorized 5,000 5,000
Common stock, shares issued