Note H - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Research and development expenses	$ 5,630,000	$ 3,215,000
Inventory	3,215,000	969,000
Lease liabilities	2,286,000	2,348,000
State NOL and tax credit carryforwards	2,091,000	1,534,000
Insurance (primarily product liability)	1,089,000	1,128,000
Vacation	979,000	904,000
Other	981,000	1,794,000
Subtotal	16,271,000	11,892,000
Deferred Tax Assets, Valuation Allowance	1,599,000	954,000
Total deferred tax assets	14,672,000	10,938,000
Right-of-use lease asset	2,286,000	2,348,000
Goodwill and other intangibles	1,469,000	1,921,000
Depreciation	581,000	860,000
Deferred revenue	9,000	6,000
Total deferred tax liabilities	4,345,000	5,135,000
Net deferred tax assets	$ 10,327,000	$ 5,803,000