Note 1 - Nature of Business and Summary of Significant Accounting Policies (Details Textual) - USD ($)		12 Months Ended
	Jun. 25, 2020	Dec. 31, 2020	Dec. 31, 2019	Apr. 30, 2019
Revenues, Total		$ 1,217	$ 4,278
Cost of Goods and Services Sold, Total		2,915	$ 7,239
Incremental Common Shares Attributable to Conversion of Debt Securities, Total (in shares)			130,578
Asset Retirement Obligations, Noncurrent, Total		862	$ 786
Premier Gas Company, LLC [Member]
Escrow Deposit			$ 50,000
Oklahoma Oil and Gas Assets [Member]
Escrow Deposit				$ 50,000
Oklahoma Oil and Gas Assets [Member] | Pure and ZQH [Member]
Business Combination, Consideration Transferred, Total	$ 1,000,000	$ 1,000,000
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		148,328