Fourth Quarter Operations (Unaudited) (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Fourth Quarter Operations (Unaudited) (Textual) [Abstract]
Write-off goodwill charged to operation	$ 12,200	$ 12,150

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

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+ Details