Gain on Sale of Dry Strip Assets and Intellectual Property (Details) (USD $)	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 Dry strip product line, intellectual property rights and certain assets	Sep. 30, 2013 Dry strip product line, intellectual property rights and certain assets	Dec. 31, 2012 Maximum Dry strip product line, intellectual property rights and certain assets
Sale of assets
Contingent purchase price				$ 2,000,000
Gain on sale of dry strip assets and intellectual property	$ 1,167,000	$ 0	$ 1,200,000