CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
CONDENSED CONSOLIDATED BALANCE SHEETS
Trade, less allowance for doubtful accounts	$ 1,144	$ 1,103
Class A Common stock, par value (in dollars per share)	$ 0.80	$ 0.80
Class A Common stock, shares authorized (in shares)	10,000	10,000
Class A Common stock, shares issued (in shares)	6,102	6,102
Treasury shares (in shares)	2,404	2,404