Investments - Certificates of Deposit (Narrative) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Recently Adopted Accounting Standards
Certificates of deposit brokered	$ 6,726,000	$ 27,698,000

Brokered CDs are purchased through a registered broker-dealer and are a direct obligation of the issuing depository institution. These CDs are insured within the FDIC permissional limits.

No definition available.

Name:	UNAM_CertificatesOfDepositBrokered
Namespace Prefix:	UNAM_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant