Note O - Acquisition (Details Textual) - ASL Solutions, Inc [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2025
Payments to Acquire Businesses, Gross	$ 1,900	$ 1,941	$ 1,800
Business Combination, Recognized Asset Acquired, Inventory, Current	600	600
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment	500	500
Trademarks [Member]
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived	$ 200	200
Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period	20 years
Customer Lists [Member]
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived	$ 600	$ 600
Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period	10 years

Weighted-average period of amortization for finite-lived intangible asset acquired in business combination, asset acquisition, and from joint venture formation, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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Amount of identifiable finite-lived intangible asset acquired in business combination and recognized at acquisition date.

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Amount of inventory acquired in business combination and recognized at acquisition date, classified as current.

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Amount of property, plant, and equipment acquired in business combination and recognized at acquisition date.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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