Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues
Total revenues	$ 133,670,454	$ 124,959,304	$ 26,742,085
Operating expenses
Cost of sales and supportive services	16,601,880	14,797,419	1,782,838
Selling, general and administrative	17,323,429	14,003,184	13,252,136
Research and development	9,942,194	10,938,930	13,303,149
Patent expenses	710,152	719,141	726,105
Total operating expenses	44,577,655	40,458,674	29,064,228
Operating income (loss)	89,092,799	84,500,630	(2,322,143)
Gain (loss) from change in fair value of warrant liability	117,770	(3,525,846)	5,091,256
Loss on extinguishment of Term Loan	0	(4,981,461)	0
Interest expense	0	(3,016,817)	(15,769,768)
Other income, net	101,172	532,085	2,822,232
Income (loss) before income taxes	89,311,741	73,508,591	(10,178,423)
(Provision) benefit for income taxes	(19,860,975)	(17,166,581)	2,937,276
Net and comprehensive income (loss)	$ 69,450,766	$ 56,342,010	$ (7,241,147)
Basic earnings (loss) per share (in dollars per share)	$ 0.92	$ 0.71	$ (0.09)
Diluted earnings (loss) per share (in dollars per share)	$ 0.91	$ 0.71	$ (0.15)
Weighted average shares outstanding: basic (in shares)	75,322,194	79,259,000	81,031,254
Weighted average shares outstanding: diluted (in shares)	76,402,716	79,437,306	82,175,023
Product Sales and Supportive Services [Member]
Revenues
Total revenues	$ 126,802,536	$ 115,471,071	$ 11,190,064
Research and Development [Member]
Revenues
Total revenues	$ 6,867,918	$ 9,488,233	$ 15,552,021