Note 6 - Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

Schedule of Accrued Liabilities and Other Current Liabilities [Table Text Block]

	June 30,		December 31,
	2023		2022
Accrued expenses	$	111	$	157
Accrued salaries and employee benefits		715		899
Accrued clinical trial costs		821		548
Grant liability		501		534
Customer deposits		90		90
Payable to related party		19		18
Total	$	2,257	$	2,246