Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Summary of activity for discontinued operations
Revenue from discontinued operations	$ 42	$ 714	$ 242	$ 1,336
Operating loss before income taxes	(59)	(91)	(160)	(385)
Income tax benefit from discontinued operations	22	31	60	131
Gain on disposal, before income taxes	167	9	125	235
Income tax expense on disposal	(62)	(3)	(46)	(80)
Income (loss) from discontinued operations	$ 68	$ (54)	$ (21)	$ (99)