Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues
Royalty revenue	$ 9,314,207	$ 6,257,688	$ 13,647,707	$ 10,456,188
Grant and contract revenue	1,945,103	54,843	3,998,487	138,929
Total revenue	11,259,310	6,312,531	17,646,194	10,595,117
Operating expenses
General and administrative	2,733,565	2,836,162	5,379,894	5,409,473
Research and development	3,149,503	558,311	7,237,690	1,979,296
Sales and marketing	1,022,988	1,746,917	2,020,562	2,823,444
Royalty expense	2,106,726	1,402,749	3,086,192	2,336,754
Total operating expenses	9,012,782	6,544,139	17,724,338	12,548,967
Income (loss) from operations	2,246,528	(231,608)	(78,144)	(1,953,850)
Other income (expense)
Interest income	3,637	11,494	6,836	88,093
Interest expense	(542,091)	0	(1,078,977)	0
(Loss) gain on foreign exchange	(24,483)	3,909	(10,354)	3,909
Total other income (expense)	(562,937)	15,403	(1,082,495)	92,002
Income (loss) before income taxes	1,683,591	(216,205)	(1,160,639)	(1,861,848)
Income tax (expense)	0	0	0	(39,000)
Net income (loss)	1,683,591	(216,205)	(1,160,639)	(1,900,848)
Other comprehensive loss:
Foreign currency translation adjustment	(4,446)	(17,229)	8,055	(310,720)
Comprehensive income (loss)	$ 1,679,145	$ (233,434)	$ (1,152,584)	$ (2,211,568)
Net income (loss) per share of common stock:
Basic (in dollars per share)	$ 0.39	$ (0.05)	$ (0.27)	$ (0.45)
Diluted (in dollars per share)	$ 0.31	$ (0.05)	$ (0.27)	$ (0.45)
Weighted average shares outstanding used to compute net loss per share:
Basic (in shares)	4,332,601	4,258,105	4,308,027	4,241,423
Diluted (in shares)	5,427,831	4,258,105	4,308,027	4,241,423