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+ Details

Note G - Economic Dependency - Substantial Net Sales to Certain Customers (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		9 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2025	Mar. 31, 2024
Net sales	$ 28,766		$ 25,136				$ 95,994	$ 84,307
Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Net sales		$ 16,964		$ 13,891	$ 58,956	$ 48,819
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Customer 1 [Member]
Net sales		10,849		$ 11,251	33,457	35,215
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Customer 2 [Member]
Net sales		3,108			13,263	$ 13,604
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Customer 3 [Member]
Net sales		$ 3,007			$ 12,236