Income Taxes (Schedule Of Net Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Abstract]
Vacation Accrual	$ 27	$ 29
Allowance for Doubtful Accounts	2	2
Stock Compensation	96	94
Bonus	4	0
Depreciation and Amortization	100	94
Inventory Obsolescence	2	1
R&D Credit Carryforward	220	235
Valuation allowance	(220)	(186)
Total Deferred Tax Assets	231	269
Prepaid Expenses	23	23
Total Deferred Tax Liabilities	23	23
Net Deferred Tax Asset	$ 208	$ 246

Amount of deferred tax liability attributable to taxable temporary differences.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on accounts receivable.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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