Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2022	Feb. 21, 2023	Feb. 13, 2023
Document Information [Line Items]
Entity Central Index Key	0001463913
Entity Registrant Name	US Alliance Corp
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	000-55627
Entity Incorporation, State or Country Code	KS
Entity Tax Identification Number	26-4824142
Entity Address, Address Line One	1303 SW First American Place, Suite 200
Entity Address, City or Town	Topeka
Entity Address, State or Province	KS
Entity Address, Postal Zip Code	66604
City Area Code	785
Local Phone Number	228-0200
Title of 12(g) Security	Common Stock, $0.10 par value per share
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	false
Entity Public Float		$ 0
Entity Common Stock, Shares Outstanding			7,746,922
Auditor Firm ID	718
Auditor Name	Kerber, Eck & Braeckel LLP
Auditor Location	Springfield, Illinois