Nature Of Business And Significant Accounting Policies (Narrative) (Details) $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($) ShareBasedCompensationPlan Customer Number	Dec. 31, 2021 USD ($) Customer
Schedule of Significant Accounting Policies [Line Items]
Nonfinancial or financial items measured on a nonrecurring basis	$ 0
Advertising expense	38	$ 40
Research and development expense	836	876
Valuation allowance on deferred tax assets	$ 252	220
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	1	0
Concentration risk percentage	12.00%	10.00%

The amount of nonfinancial and financial items measured on nonrecurring basis.

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- Definition

Represents the number of company compensation plans.

+ References

No definition available.

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- Definition

Represents number of customers.

+ References

No definition available.

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The number of non-publicly traded companies which the reporting entity owns equity securities.

+ References

No definition available.

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- References

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-Subparagraph (b)
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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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- Definition

Amount of decrease in allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) from sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 9
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
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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/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 912
-SubTopic 730
-Section 25
-Paragraph 1
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