Consolidated Balance Sheets - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 23,868,416	$ 1,512,750
Restricted cash held in escrow	1,000,000	0
Accounts receivable, less allowance for doubtful accounts of $0 at December 31, 2019 and 2018	7,921	0
Lease receivable, current	33,100	48,271
Inventory, net	1,798,146	2,533,616
Prepaid expenses and deposits	4,812,088	2,274,595
Total current assets	31,519,671	6,369,232
Property, plant and equipment, net	6,830,181	5,237,451
Investment in LMC	12,194,800	0
Lease receivable, long-term	129,177	198,090
Total Assets	50,673,829	11,804,773
Current liabilities:
Accounts payable	1,678,983	4,340,463
Accrued liabilities	3,105,184	3,946,386
Warranty liability	6,001,864	7,058,769
Warrant liability	16,335,000	1,822,819
Customer deposits	303,000	406,000
Duke financing obligation	0	1,340,700
Current portion of Convertible Note, at fair value	19,620,000	0
Total current liabilities	47,044,031	18,915,137
Long-term debt	19,400,000	8,312,079
Mandatory redeemable Series B preferred stock	19,142,908	0
Commitments and contingencies
Stockholders' Equity Attributable to Parent [Abstract]
Series A preferred stock, par value of $0.001 per share 75,000,000 shares authorized, 0 shares issued and outstanding at December 31, 2019 and 2018	0	0
Common stock, par value of $0.001 per share 250,000,000 shares authorized, 67,105,000 shares issued and outstanding at December 31, 2019 and 58,270,934 shares issued and outstanding at December 31, 2018	67,105	58,271
Additional paid-in capital	143,826,315	126,076,782
Accumulated deficit	(178,806,530)	(141,557,496)
Total stockholders' deficit	(34,913,110)	(15,422,443)
Total Liabilities and Stockholders' Deficit	$ 50,673,829	$ 11,804,773