Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 48,325,444	$ 37,853,947
Marketable securities	2,500,089	15,014,750
Accounts receivable	4,453,391	13,327,364
Prepaid and other current assets	3,881,014	2,962,903
Total current assets	59,159,938	69,158,964
Other assets
Property and equipment - net	70,553	78,107
Right of use assets - operating leases	874,620	999,567
Patents and patent applications - net	11,285	11,628
Other non-current assets	202,422	179,532
Total assets	60,318,818	70,427,798
Current liabilities
Accounts payable and accrued expenses	5,318,645	3,369,848
Accrued salaries and wages	759,385	201,254
Royalty payable	426,257	2,920,148
Deferred revenue	0	16,618
Operating leases	283,320	337,690
Total current liabilities	6,787,607	6,845,558
Long-term liabilities
Operating leases - long term	608,019	673,347
Convertible debt, net of unamortized discount	13,659,946	16,069,085
Total long-term liabilities	14,267,965	16,742,432
Total liabilities	21,055,572	23,587,990
Stockholders' equity
Common stock; par value $0.001; 200,000,000 shares authorized; 5,079,605 and 4,909,846 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively	5,080	4,910
Additional paid-in capital	113,208,236	108,569,988
Accumulated other comprehensive loss	(81,965)	(54,815)
Accumulated deficit	(73,868,105)	(61,680,275)
Total stockholders' equity	39,263,246	46,839,808
Total liabilities and stockholders' equity	$ 60,318,818	$ 70,427,798