Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Trade and other accounts receivable, allowance	$ 341	$ 577
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	40,000	40,000
Common stock, shares issued	29,183	29,183
Common stock, shares outstanding	28,174	28,174