Organization and Summary of Significant Accounting Policies - Non-controlling Interests (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners	50.00%
Equity of non-controlling interest	$ (2,721,019)	$ (1,468,823)	$ 1,695,895
Net loss attributable to non-controlling interest	(728,218)	(1,019,205)
Non-controlling Interest
Noncontrolling Interest [Line Items]
Equity of non-controlling interest	5,828,141	3,639,359	$ 4,165,986
Net loss attributable to non-controlling interest	$ (728,218)	(1,019,205)
Subsidiaries
Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners	50.00%
Navitus
Noncontrolling Interest [Line Items]
Reclass prior period contribution to related party payable	$ 150,000	$ 150,000