Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Consolidated Condensed Balance Sheets [Abstract]
Accounts receivable, allowance	$ 2,221	$ 1,937
Common Stock, par value
Common Stock, shares authorized	55,000,000	55,000,000
Common Stock, shares issued	29,701,225	29,701,225
Common Stock, shares outstanding	23,515,571	23,515,571