Subsequent Events [Text Block]	3 Months Ended
Mar. 31, 2020
Notes
Subsequent Events	`Note 15.Subsequent Events` In April 2020, the Company acquired the remaining 76.93% interest in Torchlight Technology Group, LLC., a marketing technology (“MarTech”) company through a step acquisition for $11,443,000 of cash consideration. On April 24, 2020, IHC announced that it commenced a tender offer to purchase up to 1,000,000 shares of its common stock at a price per share of $27.00. The tender offer will expire on May 21, 2020, unless extended by IHC. The tender offer is subject to a number of terms and conditions described in the Offer to Purchase that has been distributed to stockholders.

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

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