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

9 Months Ended

Sep. 30, 2023

Notes Tables

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

		September 30,				December 31,
		2023				2022
Accrued expenses		$	36			$	157
Accrued salaries and employee benefits			797				899
Accrued clinical trial costs			1,032				548
Grant liability			491				534
Customer deposits			90				90
Payable to related party			56				18
Total		$	2,502			$	2,246

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