Note 11 - Earnings (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
Jun. 30, 2025	Jun. 30, 2024
Net loss	$ (926)	$ (1,202)
Basic and diluted (in shares)	7,211	6,948
Basic and diluted (in dollars per share)	$ (0.13)	$ (0.17)

Note 11 - Earnings (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

Jun. 30, 2025

Jun. 30, 2024

Net loss

$ (926)

$ (1,202)

Basic and diluted (in shares)

7,211

6,948

Basic and diluted (in dollars per share)

$ (0.13)

$ (0.17)

- 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