Statements of Cash Flow - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Cash Flows [Abstract]
Net income (loss)	$ (25,730,168)	$ 36,147,902
Depreciation and amortization expense	3,130,413	3,682,434
Gain on sale of marketable securities	0	(1,059,617)
Loss on sale of fixed assets	0	532,297
Change in marketable securities	75,197,644	(28,573,418)
Change in trade receivables, net of reserve	(4,664,969)	359,923
Change in contract assets, prepaid and other	(5,832,908)	(1,657,502)
Change in deferred tax assets	(45,113)	(503,141)
Change in accounts payable	490,878	(340,887)
Change in taxes payable	1,883,953	1,190,636
Change in accrued expenses	(4,816,983)	(6,762,717)
Change in deferred revenue	(1,394,046)	263,454
Change in deferred tax liabilities	(18,037,168)	5,863,584
Change in tax reserves	(448,248)	(1,234,157)
Net cash from operations	19,733,285	7,908,791
Purchases of marketable securities	0	(9,674,364)
Sales of marketable securities	10,000,000	9,305,617
Purchases of fixed assets	(1,033,159)	(2,178,555)
Sales of fixed assets	0	6,711,896
Change in other assets	19,611	102,572
Net cash from investing	8,986,452	4,267,166
Dividends paid	(20,826,878)	(20,826,878)
Net cash used in financing	(20,826,878)	(20,826,878)
Net change in cash and equivalents	7,892,859	(8,650,921)
Cash and equivalents at beginning	14,997,613	23,095,977
Cash and equivalents at end	$ 22,890,472	$ 14,445,056