Note 4 - Other Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Other Liabilities [Table Text Block]

	March 31,		December 31,
	2023		2022
Insurance	$	363,000	$	591,000
Professional services		174,000		92,000
Operating costs		620,000		539,000
Other		321,000		322,000
Total other accrued liabilities	$	1,478,000	$	1,544,000