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Note 4 - Acquisitions (Details Textual) - Cedar Holdings Group, Incorporated [Member] $ in Thousands		3 Months Ended	6 Months Ended	18 Months Ended
	Jan. 01, 2020 USD ($) shares	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)
Business Combination, Consideration Transferred, Total	$ 14,100
Business Combination, Consideration Transferred, Estimated Price Adjustments	200
Business Combination, Consideration Transferred, Net of Price Adjustments	13,900		$ 13,908
Payments to Acquire Businesses, Gross	$ 9,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares	32,374
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 2,000		2,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	4,000
Business Combination, Contingent Consideration, Liability, Total	$ 3,100
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		$ 1,200	2,400
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual		$ 100	200
General and Administrative Expense [Member]
Business Combination, Acquisition Related Costs			$ 100	$ 0
Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	7 years
Network Rights [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	15 years
Measurement Input, Discount Rate [Member]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.112

X

- Definition

Amount of estimated price adjustments that are expected to be incurred by the acquiring entity. Excludes cash.

+ References

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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 net of any price adjustments.

+ References

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Number of shares of equity interests issued or issuable to acquire entity.

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-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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