Business Acquisition (Narrative) (Details) - OneEvent Technologies, Inc. [Member] $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Business Acquisition [Line Items]
Acquisition date	Jul. 23, 2019
Business acquisition, purchase price	$ 6,501
Business acquisition, purchase price, cash	4,020
Business acquisition, purchase price, forgiven note receivable	$ 2,364
Earn out period	7 years
Potential earn out payment	$ 117
Revenue of Acquiree Included in Consolidated Income Statement Since Acquisition Date	(38)
Earnings of Acquiree Included in Consolidated Income Statement Since Acquisition Date	$ (1,103)
Minimum [Member]
Business Acquisition [Line Items]
Acquired intangibles, amortization period	10 years
Maximum [Member]
Business Acquisition [Line Items]
Acquired intangibles, amortization period	15 years

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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