Investments in Other Entities - Equity Method Investments (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	$ 35,903,041	$ 34,876,980
LaSalle Medical Associates – IPA Line of Business
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	6,827,190	7,054,888
Pacific Medical Imaging & Oncology Center, Inc.
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	1,511,276	1,359,494
Universal Care, Inc.
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	8,159,432	2,635,945
Accountable Health Care IPA- related party
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	665,372	4,977,957
Diagnostic Medical Group
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	2,434,938	2,257,346
Pacific Ambulatory Surgery Center, LLC
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	0	285,198
531 W. College, LLC – related party
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	16,238,833	16,273,152
MWN, LLC – related party
Schedule of Equity Method Investments [Line Items]
Investments in other entities – equity method	$ 66,000	$ 33,000