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Note 3 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

		As of June 30, 2022
		Adjusted				Unrealized				Unrealized				Market
		Cost				Gains				Losses				Value
Level 1:
Money Market Funds		$	1,537			$	-			$	-			$	1,537
U.S. Treasury securities in short-term investments			24,879				-				(17	)			24,862
Total Financial Assets		$	26,416			$	-			$	(17	)		$	26,399

		As of December 31, 2021
		Adjusted				Unrealized				Unrealized				Market
		Cost				Gains				Losses				Value
Level 1:
Money Market Funds		$	1,670			$	-			$	-			$	1,670
U.S. Treasury securities in short-term investments			29,989				-				(6	)			29,983
Total Financial Assets		$	31,659			$	-			$	(6	)		$	31,653

Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.

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