The amount of debt assumed as consideration for the acquisition of licenses from a VIE.

No definition available.

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- Definition

Amount of effect of a change in accounting principle on lease obligation liability.

+ References

No definition available.

+ Details

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- Definition

Amount of effect of a change in accounting principle on right of use assets.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Period for creating allowance for doubtful accounts.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

The cash inflow from spectrum auction.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The carrying amount of proceeds receivable from a counter party, within one year of the balance sheet date (or normal operating cycle, whichever is longer) for spectrum auction.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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- Definition

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

+ References

No definition available.

+ Details

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- Definition

Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=77990344&loc=SL6759159-111685

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Note 1 - Basis of Presentation (Details Textual) $ in Thousands				6 Months Ended	12 Months Ended
	Aug. 07, 2017 USD ($)	May 30, 2017 USD ($)	Jan. 17, 2017 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2019 USD ($)	Jan. 01, 2017 USD ($)	Dec. 31, 2016 USD ($)
Number of Reportable Segments				1
Spectrum Auction Proceeds Receivable, Current		$ 90,800		$ 90,824
Property, Plant and Equipment, Additions				$ 36,500
Period for Creating Allowance for Doubtful Accounts				120 days
Cumulative Effect of New Accounting Principle in Period of Adoption							1,107
Subsequent Event [Member]
Proceeds from Spectrum Auction	$ 90,800
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption							$ 1,107
Accounting Standards Update 2016-09 [Member] \| Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption						$ 1,100
Scenario, Forecast [Member] \| Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncement Effect, Right of Use Assets					$ 13,200
New Accounting Pronouncement Effect, Lease Obligation Liability					$ 13,200
Consolidation, Eliminations [Member]
Spectrum Auction Proceeds Receivable, Current				$ 90,800
Notes Payable, Current				90,800
GME [Member]
Variable Interest Entity, Financial or Other Support, Amount			$ 106,000
Consideration for Acquisition of Licenses from VIE, Debt Assumed		$ 59,000
Spectrum Auction Proceeds Receivable, Current				90,824
Notes Payable, Current			106,000	$ 90,824
Green Bay Acquisition and Davenport Acquisition [Member]
Business Combination, Consideration Transferred			$ 269,900