Minority Business Investment (Narrative) (Details) (USD $)	3 Months Ended				3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2014 Curepet, Inc. [Member]	Mar. 31, 2013 Curepet, Inc. [Member]	Jun. 30, 2012 Curepet, Inc. [Member]	Jan. 27, 2014 Curepet, Inc. [Member]	Dec. 31, 2013 Curepet, Inc. [Member]
Schedule of Cost-method Investments [Line Items]
Cost Method Investment, Ownership Percentage							19.80%
Payments to Acquire Other Investments							$ 2,000,000
Document Period End Date	Mar. 31, 2014
Revenue	51,404,000	52,566,000			125,000	600,000
Due from related parties, current					0				1,400,000
Allowance for doubtful accounts	1,143,000		1,049,000
Purchase Price of Business Acquisition, Cost of Acquired Entity								6,350,000
Derivative Liability	$ 14,376,000		$ 14,420,000	$ 17,495,000	$ 1,600,000			$ 5,000,000