Note 16 - Subsequent Event	9 Months Ended
Sep. 30, 2021
Notes to Financial Statements
Subsequent Events [Text Block]	16. SUBSEQUENT EVENT On October 8, 2021, the Company entered into an agreement to purchase certain assets and assume certain liabilities from Cable America Missouri, LLC, a data, video and voice services provider in central Missouri ("CableAmerica"), for $113.0 million in cash on a debt-free basis, subject to customary post-closing adjustments. The CableAmerica acquisition is expected to provide the Company opportunities for footprint expansion in Missouri, margin growth and potential cost synergy realization. The transaction is subject to certain customary closing conditions and is expected to be financed with cash on hand and close before the end of 2021.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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