Cover
Cover - USD ($) | 12 Months Ended | ||
Dec. 31, 2020 | Feb. 10, 2021 | Jun. 30, 2020 | |
Document Information [Line Items] | |||
Document Type | 10-K/A | ||
Amendment Flag | false | ||
Document Annual Report | true | ||
Document Transition Report | false | ||
Document Period End Date | Dec. 31, 2020 | ||
Document Fiscal Period Focus | FY | ||
Document Fiscal Year Focus | 2020 | ||
Current Fiscal Year End Date | --12-31 | ||
Entity File Number | 001-34833 | ||
Entity Registrant Name | United States Commodity Index Funds Trust | ||
Entity Central Index Key | 0001479247 | ||
Entity Tax Identification Number | 27-1537655 | ||
Entity Incorporation, State or Country Code | DE | ||
Entity Address, Address Line One | 1850 Mt. Diablo Boulevard | ||
Entity Address, Address Line Two | SuiteĀ 640 | ||
Entity Address, City or Town | Walnut Creek | ||
Entity Address, State or Province | CA | ||
Entity Address, Postal Zip Code | 94596 | ||
City Area Code | 510 | ||
Local Phone Number | 522-9600 | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Accelerated Filer | ||
Entity Small Business | false | ||
Entity Emerging Growth Company | false | ||
Entity Shell Company | false | ||
Entity Public Float | $ 141,617,184 | ||
ICFR Auditor Attestation Flag | true | ||
United States Commodity Index Fund [Member] | |||
Document Information [Line Items] | |||
Title of 12(b) Security | Shares of United States Commodity Index Fund | ||
Trading Symbol | USCI | ||
Security Exchange Name | NYSEArca | ||
Entity Public Float | 126,254,867 | ||
Entity Common Stock, Shares Outstanding | 4,500,000 | ||
United States Copper Index Fund [Member] | |||
Document Information [Line Items] | |||
Title of 12(b) Security | Shares of United States Copper Index Fund | ||
Trading Symbol | CPER | ||
Security Exchange Name | NYSEArca | ||
Entity Public Float | $ 15,362,317 | ||
Entity Common Stock, Shares Outstanding | 4,750,000 | ||
Common Stock [Member] | |||
Document Information [Line Items] | |||
Entity Common Stock, Shares Outstanding | 9,250,000 |