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Nature Of Business And Significant Accounting Policies (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) ShareBasedCompensationPlan Customer Number | Dec. 31, 2023 USD ($) Customer
Schedule of Significant Accounting Policies [Line Items] |  |
Cash equivalents | $ 7,980 | $ 7,926
Trade receivables, allowance for credit losses | 11 | 11
Nonfinancial or financial items measured on a nonrecurring basis | 0 |
Advertising expense | 42 | 46
Research and development expense | 1,013 | 973
Valuation allowance on deferred tax assets | $ 311 | 279
Number of company compensation plans | ShareBasedCompensationPlan | 1 |
Other-than-temporary impairments recognized | $ 0 | $ 0
Number Of Non-Publicly Traded Companies | Number | 2 |
Number of banks has deposit accounts of the reporting entity | 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 | 0
Concentration risk percentage | 10.00% | 10.00%

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