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Note 5 - Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

		2021				2020
Accrued compensation and related expenses		$	480			$	443
Accrued professional fees			163				174
Accrued clinical trial expenses			618				497
Other			113				237
		$	1,374			$	1,351

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Tabular disclosure of the components of accrued liabilities.

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