Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities:
Net loss	$ (10,358,097)	$ (3,763,148)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization and depreciation	35,448	22,992
Non-cash lease expenses	66,298	60,041
Share-based compensation	144,694	152,465
Issuance of common stock for milestone	5,000,000
Issuance of common stock for services	59,000	114,557
Realized gain on sale of office furniture		(3,843)
Change in operating assets and liabilities:
Contracts and grants receivable	684,048	(473,830)
Prepaid expenses and other current assets	434,877	7,504
Research and development incentives receivable	19,754
Operating lease liability	(67,004)	(59,197)
Deferred revenue		69,976
Accounts payable and accrued expenses	(136,035)	1,308,577
Accrued compensation	(221,513)	(244,466)
Total adjustments	6,019,567	954,776
Net cash used in operating activities	(4,338,530)	(2,808,372)
Investing activities:
Purchases of office furniture and equipment	(7,147)
Proceeds from the sale of office furniture		5,500
Net cash provided by (used in) investing activities	(7,147)	5,500
Financing activities:
Proceeds from issuance of common stock pursuant to FBR At Market Sales Issuance Agreement	9,459,949	842,244
Costs associated with FBR At Market Sales Issuance Agreement	(425,915)	(29,291)
Proceeds from the exercise of warrants	685,384
Financing lease principal repayments	(3,664)	(3,317)
Paycheck Protection Program loan	417,830
Net cash provided by financing activities	10,133,584	809,636
Effect of foreign exchange rate on cash and cash equivalents	(40,310)	(4,192)
Net increase/(decrease) in cash and cash equivalents	5,747,597	(1,997,428)
Cash and cash equivalents at beginning of period	5,420,708	8,983,717
Cash and cash equivalents at end of period	11,168,305	6,986,289
Supplemental information:
Cash paid for state income tax		5,000
Cash paid for lease liabilities:
Operating lease	71,298	69,750
Financing lease	4,272	4,272
Non-cash investing and financing activities:
Right-of-use assets and lease liabilities recognized on January 1, 2019		255,962
Deferred issuance cost included in accounts payable	85,657	18,537
Deferred issuance cost reclassified to additional-paid-in capital	85,266	7,679
Issuance of restricted common stock to vendor for website re-development		$ 46,500
Issuance of stock options, cash exercise price received December 2019	$ 1,882