Consolidated Balance Sheets - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 2,798,744	$ 3,002,557
Other receivables	55,198	115,982
Inventory	1,232,049	76,109
Prepaid expenses and other current assets	391,162	315,969
Total current assets	4,477,153	3,510,617
Property, plant and equipment, net	25,065,836	23,716,768
Right of use assets, net	399,477	0
Definite-lived intangible assets, net	157,588	171,292
Indefinite-lived intangible assets	101,661	191,800
Other assets	32,024	80,583
Total assets	30,233,739	27,671,060
Current liabilities:
Accounts payable and accrued liabilities	1,462,809	824,900
Other current liabilities	62,286	20,423
Current debt	163,155	71,613
Total current liabilities	1,688,250	916,936
Long-term lease obligation	352,808	0
Long-term debt	4,432,052	3,519,821
Total liabilities	6,473,110	4,436,757
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.001 par value, 50,000,000 shares authorized; 21,635,365, (2018: 15,098,837) shares outstanding	21,635	15,099
Additional paid-in capital	156,241,363	142,707,957
Accumulated other comprehensive loss	(360,160)	(574,186)
Accumulated deficit	(132,142,209)	(118,914,567)
Total stockholders’ equity	23,760,629	23,234,303
Total liabilities and stockholders’ equity	$ 30,233,739	$ 27,671,060