Income Taxes (Schedule Of Net Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred Tax Assets:
Vacation accrual	$ 27	$ 26
Allowance for credit losses	2	2
Stock compensation	52	6
Bonus	4	2
Depreciation and amortization	53	71
Inventory obsolescence	2	2
R&D expenses	392	273
R&D credit carryforward	311	279
Valuation allowance	(311)	(279)
Total Deferred Tax Assets	532	382
Deferred Tax Liabilities:
Prepaid expenses	31	27
Total Deferred Tax Liabilities	31	27
Net Deferred Tax Asset	$ 501	$ 355