Note 6 - Net Loss Per Share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Net loss	$ (2,530)	$ (2,029)
Denominator for basic and diluted net loss per share — weighted average common stock outstanding (in shares)	48,355	47,428
Net loss (in dollars per share)	$ (0.05)	$ (0.04)