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Note 7 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2021	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)	4,166
Option Indexed to Issuer's Equity, Strike Price (in dollars per share)	$ 8.04
Stock Issued During Period, Value, Stock Options Exercised	$ 33	$ 33

X

- Definition

Exercise or strike price stated in the contract for options indexed to the issuer's equity shares.

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Number of share options (or share units) exercised during the current period.

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