Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $) In Thousands, except Per Share data	Sep. 30, 2011	Dec. 31, 2010
Allowance for doubtful accounts (in Dollars)	$ 442	$ 444
Preferred stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued	0	0
Common Stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	30,000	30,000
Common Stock, shares issued	11,811	11,835
Treasury stock	1,351	1,339