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Nature Of Business And Significant Accounting Policies (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) ShareBasedCompensationPlan Customer Number | Dec. 31, 2022 USD ($) Customer
Schedule of Significant Accounting Policies [Line Items] |  |
Trade receivables, allowance for credit losses | $ 11 | $ 11
Nonfinancial or financial items measured on a nonrecurring basis | 0 |
Advertising expense | 46 | 38
Research and development expense | 973 | 836
Valuation allowance on deferred tax assets | $ 279 | 252
Number of company compensation plans | ShareBasedCompensationPlan | 1 |
Other-than-temporary impairments recognized | $ 0 | $ 0
Number Of Non-Publicly Traded Companies | Number | 2 |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Aggregate customers of entity |  |
Schedule of Significant Accounting Policies [Line Items] |  |
Number of customers | Customer | 0 | 1
Concentration risk percentage | 10.00% | 12.00%

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 720 -SubTopic 35 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483406/720-35-50-1 + Details
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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 730 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482916/730-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 912 -SubTopic 730 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482517/912-730-25-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481283/985-20-50-1 + Details
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