CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Accounts receivable, allowance for doubtful accounts (in dollars) $ 732 $ 367
Property and equipment, accumulated depreciation and amortization (in dollars) $ 1,750 $ 1,184
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 1,562
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 19,857 17,171
Common stock, shares outstanding 18,616 15,609
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