Discontinued Operations (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Discontinued Operations
Interest expense allocated to discontinued operations			$ 0
Revenue and pre-tax loss related to discontinued operations
Revenue		299,000	22,000	4,385,000
Pre-tax loss	(43,000)	(21,000)	(136,000)	(200,000)
Operation located in Delaware
Discontinued Operations
After-tax loss from discontinued operations		100,000	100,000	200,000
Operation located in Delaware | Maximum
Discontinued Operations
After-tax loss from discontinued operations	$ 100,000