Consolidated Condensed Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (601,728)	$ (893,312)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,080	3,915
Non-cash investment income
Gain on equipment disposal		1,000
Change in value of warrant liability	160,689	94,821
Changes in operating assets and liabilities:
Accounts receivable and other current assets	8,074	(30,921)
Other long-term assets		(280)
Accounts payable and accrued expenses	4,292	(3,078)
Net cash used in operating activities	(425,593)	(827,855)
Cash flows from investing activities:
Purchase of short-term investments
Sale of short-term investments
Purchase of equipment
Proceeds from sale of equipment
Net cash provided by investing activities
Cash flows from financing activities:
Exercise of warrants	382,215
Net cash provided by financing activities	382,215
Effect of exchange rate change on cash and equivalents	(23,935)	9,438
Decrease in cash and cash equivalents	(67,313)	(818,417)
Cash and cash equivalents at beginning of period	1,126,124	3,617,234
Cash and cash equivalents at end of period	$ 1,058,811	$ 2,798,817