Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts (in Dollars)	$ 418	$ 420
Par value (in Dollars per share)	$ 0.01	$ 0.01
Shares authorized (in Shares)	1,000,000	1,000,000
Shares issued (in Shares)	0	0
Common Stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in Shares)	30,000,000	30,000,000
Common Stock, shares issued (in Shares)	11,770,265	11,791,997
Treasury stock (in Shares)	1,337,568	1,347,941
Rights [Member]
Par value (in Dollars per share)	$ 0.01	$ 0.01
Shares authorized (in Shares)	150,000	150,000
Shares issued (in Shares)	0	0