Condensed Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 4,217,951	$ 16,971,320
Accounts receivable, net	332,119	127,860
Inventory	12,290,355	7,856,105
Prepaid inventory	3,110,391	2,637,688
Other current assets	5,391,558	2,440,322
Total current assets	25,342,374	30,033,295
Property and equipment, net	29,440,642	24,338,907
Intangible assets, net	9,256,391	9,885,680
Deferred offering costs	0	24,000
Operating lease right-of-use assets	1,477,776	0
Security deposits	119,673	117,468
Total assets	65,636,856	64,399,350
Current liabilities:
Accounts payable	2,708,556	2,016,283
Accrued liabilities	4,704,836	2,352,034
Customer deposits	1,048,434	817,137
Notes payable	0	2,039,367
Short-term convertible note	8,673,858	0
Warrant liabilities	366,852	0
Current portion of finance lease obligations	500,955	352,294
Current portion of equipment notes payable	414,877	493,160
Current portion of warranty reserve	451,397	331,485
Current portion of deferred revenue	219,908	111,166
Current portion of operating lease liabilities	690,682	0
Deferred rent	0	101,550
Total current liabilities	19,780,355	8,614,476
Finance lease obligations	934,482	712,511
Equipment notes	958,636	1,185,060
Convertible note	4,801,600
Warranty reserve	276,634	330,015
Operating lease liabilities	864,195	0
Long-term deferred revenue	2,250	9,000
Total long-term liabilities	7,837,797	2,236,586
Total liabilities	27,618,152	10,851,062
Commitments and contingencies (Note 12)
Stockholders’ equity:
Common Stock, no par value, 100,000,000 shares authorized; 45,560,514 and 37,643,591 shares issued and outstanding as of September 30, 2022 and December 31, 2021, respectively	177,188,124	150,502,566
Additional paid-in capital	12,144,581	7,038,124
Accumulated deficit	(151,314,001)	(103,992,402)
Total stockholders’ equity	38,018,704	53,548,288
Total liabilities and stockholders’ equity	$ 65,636,856	$ 64,399,350