Other Income (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Other Income
Proceeds from legal settlement	$ (1,200)		$ 1,242		$ 1,242
Interest		7	5	16	12
Other		191	56	208	175
Other income, Total		$ 198	$ 1,303	$ 224	$ 1,429