Condensed Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash Flows From Operating Activities:
Net loss	$ (3,394,855)	$ (1,210,920)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	12,573	4,846
Warranty provision	3,503	0
Inventory write-off	(65,012)	0
Non-cash lease expense	22,211	0
Share-based compensation	600,898	172,973
Changes in assets and liabilities:
Accounts receivable	(26,863)	0
Inventories	(1,032,308)	(15,222)
Prepaid expenses and other current assets	(71,182)	(5,695)
Accounts payable	183,478	11,018
Operating lease liability	(20,893)	0
Accrued liabilities and other	59,416	(17,758)
Deferred revenue	3,357	0
Net cash used in operating activities	(3,725,677)	(1,060,758)
Cash Flows From Investing Activities:
Capital expenditures for property and equipment	(108,616)	(8,015)
Investment in patents and trademarks	(68,501)	0
Long-term deposits	(11,169)	0
Net cash used in investing activities	(188,286)	(8,015)
Cash Flows From Financing Activities:
Sale of common stock and warrants	11,351,214	0
Proceeds from exercise of warrants	1,557,285	0
Proceeds from exercise of stock options	24,375	0
Net cash provided by financing activities	12,932,874	0
Net increase (decrease) in cash and cash equivalents	9,018,911	(1,068,773)
Cash, beginning of period	12,358,896	3,083,976
Cash, end of period	21,377,807	2,015,203
Supplemental Disclosure of Non-Cash Investing and Financing Activities:
Prepaid insurance financed with note payable	0	39,435
Right-of-use assets and liabilites recorded during period	341,000	0
Issuance costs relating to warrants issued to public offering selling agent	$ 205,894	$ 0