Consolidated Balance Sheets - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 48,251,336	$ 30,980,473
Accounts receivable	8,910,975	7,218,367
Prepaid expenses and other current assets	1,936,842	1,055,816
Total current assets	59,099,153	39,254,656
Non-current assets
Property and equipment, net	171,190	243,039
Right of use assets - operating leases	278,455	768,441
Patents and patent applications, net	13,000	14,373
Other non-current assets	1,051,234	0
Total assets	60,613,032	40,280,509
Current liabilities
Accounts payable and accrued liabilities	2,966,479	1,316,773
Accrued salaries and wages	908,516	1,237,661
Royalty payable	1,908,072	1,620,182
Deferred revenue	354,756	918,272
Operating leases - current	282,421	516,931
Total current liabilities	6,420,244	5,609,819
Long-term liabilities
Operating leases - long term	0	254,664
Convertible debt, net of unamortized discount	18,700,546	0
Total liabilities	25,120,790	5,864,483
Stockholders' equity
Common stock; par value $0.001; 200,000,000 shares authorized; 4,186,438 and 3,845,361 shares issued and outstanding at December 31, 2020 and 2019, respectively.	4,259	4,187
Additional paid-in capital	100,203,979	97,239,455
Accumulated other comprehensive loss	(26,931)	0
Accumulated deficit	(64,689,065)	(62,827,616)
Total stockholders' equity	35,492,242	34,416,026
Total liabilities and stockholders' equity	$ 60,613,032	$ 40,280,509