Note 10 - Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

	Three Months Ended March 31,
	2023		2022
Equipment purchases and de-install costs	$	201,000	$	1,232,000
Costs incurred to maintain equipment		295,000		269,000
Total related party transactions	$	496,000	$	1,501,000

	March 31,		December 31,
	2023		2022
Accounts payable, asset retirement obligation and other accrued liabilities	$	791,000	$	857,000