Investments, Investment on Deposits (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Investments [Abstract]
Fair value of investments on deposit with state insurance departments	$ 8,680,638	$ 8,371,827

Fair value of investments on deposit with state insurance departments

No definition available.

Name:	utgn_FairValueOfInvestmentsOnDepositWithStateInsuranceDepartments
Namespace Prefix:	utgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant