Percentage of revenue specific to customer from net revenues.

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- Definition

Percentage of service revenue that is recognized over a period of time against gross revenue.

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- Definition

Summary of significant accounting policies.

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- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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- Definition

Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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The total expense recognized in the period for promotion, public relations, and brand or product advertising.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Value of stock issued pursuant to acquisitions during the period.

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Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Aug. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) Segment	Dec. 31, 2020 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Allowance for credit losses related to notes receivable outstanding		$ 0	$ 0
Intangible assets impairment charges			0
Goodwill impairment charges		0
Deferred tax assets		4,488	$ 4,488	$ 4,402
Percentage of revenue specific to customer from net revenue			8.00%	10.00%
Accounts receivable		600	$ 600
Selling, General and Administrative Expenses [Member]
Summary Of Significant Accounting Policies [Line Items]
Advertising and promotion expense			$ 400	$ 400
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of service revenue that is recognized over a period of time against total revenue			80.00%
American Laboratory Trading [Member]
Summary Of Significant Accounting Policies [Line Items]
Stock Issued During Period, Value, Acquisitions	$ 5,600
ASC 606 [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of reporting segment \| Segment			2
Deferred revenue		$ 500	$ 500
ASC 606 [Member] \| Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of service revenue that is recognized over a period of time against total revenue			1.00%