Note 4 - Other Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Other Liabilities [Table Text Block]

	December 31,
	2023		2022
Insurance financing	$	—	$	591,000
Professional services		472,000		92,000
Operating costs		450,000		539,000
Other		304,000		322,000
Total other accrued liabilities	$	1,226,000	$	1,544,000