CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities
Net income	$ 23,583,248	$ 13,089,250
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,976,590	9,642,330
Loss on disposal of property and equipment	41,782	0
Share-based compensation	1,036,326	642,466
Unrealized loss from investment in equity securities	16,060	0
Change in fair value of derivative instrument	0	(127,779)
Income from equity method investments	(1,641,837)	(1,432,160)
Deferred tax	706,813	(4,419,701)
Changes in operating assets and liabilities:
Receivables, net	(2,824,511)	14,775,701
Prepaid expenses and other current assets	(3,495,683)	(975,914)
Other assets	(95,258)	(86,452)
Accounts payable and accrued expenses	(692,000)	(1,808,721)
Dividends payable	617,210	0
Incentives payable	(16,395,926)	(8,021,645)
Medical liabilities	2,881,017	(437,795)
Income taxes payable	(298,439)	3,861,749
Net cash provided by operating activities	13,415,392	24,701,329
Cash flows from investing activities
Purchases of marketable securities	(3,932)	(1,301)
Repayments from related parties – loans receivable	0	200,000
Advances to related parties - loans receivable	(2,500,000)	(5,000,000)
Purchase of investments – joint venture	(16,673,840)	0
Dividends received from equity method investments	0	1,000,000
Purchase of investment in a privately held entity	(405,000)	0
Proceeds on sale of investments - cost method	0	25,000
Purchases of property and equipment	(682,712)	(943,395)
Net cash used in investing activities	(20,265,484)	(4,719,696)
Cash flows from financing activities
Repayment of bank loan	(257,374)	0
Dividends paid	(12,000,000)	(9,490,632)
Change in noncontrolling interest capital	27,500	0
Borrowings on line of credit	8,000,000	0
Payment of capital lease obligations	(48,999)	(54,555)
Proceeds from sale of common stock of VIE	200,000	0
Proceeds from the exercise of stock options and warrants	2,347,329	425,025
Net cash used in financing activities	(1,731,544)	(9,120,162)
Net (decrease) increase in cash, cash equivalents and restricted cash	(8,581,636)	10,861,471
Cash, cash equivalents and restricted cash, beginning of period	118,500,095	54,925,712
Cash, cash equivalents and restricted cash, end of period	109,918,459	65,787,183
Supplementary disclosures of cash flow information:
Cash paid for income taxes	11,612,590	9,195,024
Cash paid for interest	144,544	1,386
Supplemental disclosures of non-cash investing and financing activities
Cashless exercise of stock options	47	0
Deferred tax liability adjustment to goodwill	1,110,456	0
Cumulative effect adjustment for ASC 606 included in accounts receivable	11,600,000	0
Cumulative effect adjustment for ASC 606 included in deferred tax liabilities	3,246,098	0
Purchase price adjustment for acceleration of vested stock options	868,000	0
Reclassification of stock options exercised to liability for unissued common shares	0	425,025
Reclassification of fiduciary cash to payable	722,934	2,911
Reconciliation of cash, cash equivalents, and restricted cash
Cash and cash equivalents	101,132,237	65,787,183
Restricted cash - long-term - letters of credit	745,352	0
Restricted cash - short-term - distributions to former NMM shareholders	8,040,870	0
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	$ 118,500,095	$ 54,925,712