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Note 19 - Subsequent Events (Details Textual) $ in Thousands		3 Months Ended			6 Months Ended
	Mar. 31, 2019 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	[1]	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	[1]
Finite-lived Intangible Assets Acquired		$ 27			$ 27
Payments to Acquire Other Productive Assets		2,501			$ 2,501
Customer Contracts [Member] | STS Media Inc. [Member]
Number of Mobile Subscribers Acquired	150,000
Finite-lived Intangible Assets Acquired	$ 3,600
Payments to Acquire Other Productive Assets		$ 2,500
[1] The Company has initially applied ASC 2016-02 (Topic 842) using the modified retrospective method. Under this method, the comparative information is not restated.

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- Definition

Represents the number of mobile subscribers acquired.

+ References

No definition available.

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X

- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

Amount of cash outflow for the purchase of or improvements to tangible or intangible assets, used to produce goods or deliver services, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585

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