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Note 1- Separation from Graham Holdings Company and Description of Business (Details Textual)	Jul. 01, 2015 shares	Jun. 30, 2015 shares	Dec. 31, 2014 shares
Subsequent Event [Member] | Spinoff [Member]
Common Stock, Shares, Outstanding	5,830,000
Common Stock, Shares, Issued	5,830,000
Subsequent Event [Member]
Equity Method Investment, Ownership Percentage	100.00%
Common Class A [Member]
Conversion of Holding Company Stock to new Reporting Entity, Outstanding Number		960,000
Common Class B [Member]
Conversion of Holding Company Stock to new Reporting Entity, Outstanding Number		4,870,000
Video [Member]
Number of Customers		399,878
Data [Member]
Number of Customers		497,036
Voice [Member]
Number of Customers		138,742
Common Stock, Shares, Outstanding		5,843,313	5,843,313
Number of States in which Entity Operates		19
Preferred Stock, Shares Issued		0
Preferred Stock, Shares Outstanding		0
Common Stock, Shares, Issued		5,843,313	5,843,313

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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