Note 11 - Net Income (Loss) Per Share - Summary of Reconciliations Between the Numerator and the Denominator of the Basic and Diluted Earnings Per Share Computations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Net loss	$ 1	$ (1,150)	$ (925)	$ (2,352)
Basic (in shares)	7,293	7,004	7,252	6,976
Basic (in dollars per share)	$ 0	$ (0.16)	$ (0.13)	$ (0.34)

Note 11 - Net Income (Loss) Per Share - Summary of Reconciliations Between the Numerator and the Denominator of the Basic and Diluted Earnings Per Share Computations (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands

3 Months Ended

6 Months Ended

Sep. 30, 2025

Sep. 30, 2024

Sep. 30, 2025

Sep. 30, 2024

Net loss

$ 1

$ (1,150)

$ (925)

$ (2,352)

Basic (in shares)

7,293

7,004

7,252

6,976

Basic (in dollars per share)

$ 0

$ (0.16)

$ (0.13)

$ (0.34)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details