Condensed Balance Sheets - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 35,385,246	$ 16,983,864
Accounts receivable	492,186	195,347
Inventories, net	2,086,505	2,244,541
Prepaid expenses and other current assets	280,270	250,947
Total current assets	38,244,207	19,674,699
Property and equipment, net	264,170	242,876
Operating lease right-of-use asset, net	201,131	260,931
Intangible assets, net	306,990	230,283
Other assets, net	12,681	12,681
Total assets	39,029,179	20,421,470
Current Liabilities:
Accounts payable	783,289	406,967
Accrued liabilities	345,115	194,294
Customer deposits	183,537	343,724
Deferred revenue	2,484	2,684
Operating lease liability - short term	113,954	128,131
Note payable to bank - short term	159,815	0
Total current liabilities	1,588,194	1,075,800
Operating lease liability - long term	101,826	150,018
Note payable to bank - long term	255,228	0
Total long-term liabilities	357,054	150,018
Total liabilities	1,945,248	1,225,818
Commitments and contingencies (Note 11)
Stockholders' equity:
Preferred stock - 5,000,000 authorized; par value $0.0001 per share; none issued and outstanding	0	0
Common stock - 150,000,000 authorized; par value $0.0001 per share; 34,361,591 and 29,829,916 shares issued and outstanding each period, respectively	3,436	2,983
Additional paid-in capital	54,972,797	31,922,493
Accumulated deficit	(17,892,302)	(12,729,824)
Total stockholders' equity	37,083,931	19,195,652
Total liabilities and stockholders' equity	$ 39,029,179	$ 20,421,470