Note 18 - Segment Information - Schedule of Reportable Segment by Total Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Total assets	$ 54,678	$ 51,378
Operating Segments [Member] \| TotalStone [Member]
Total assets	54,902	51,332
Operating Segments [Member] \| Carolina Stone Holdings [Member]
Total assets	6,031	5,531
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Total assets	5,764	6,141
Intersegment Eliminations [Member]
Total assets	$ (12,019)	$ (11,626)

Amount of asset recognized for present right to economic benefit.

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+ Details