Note 17 - Subsequent Events	6 Months Ended
Jun. 30, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 17. SUBSEQUENT EVENTS On August 9, 2023, we issued to Robert Thomas, the President of UCS, an option to purchase 2,500 units of GIG, the parent of UCS, at a price of $309.72 per Common Unit. GIG has issued and outstanding 95,162 Common Units and options to purchase up to 7,338 Common Units, including the option grant to Mr. Thomas and options held by David Herman, GIG’s President. The option is exercisable for a period through June 30, 2033, subject to earlier termination upon certain events. Any purchases of these units are subject to certain put and call provisions. In July, we invested $3,000,000 in the purchase of preferred stock of a company serving the broadband industry.

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
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration