Document and Entity Information	Total
Prospectus:
Document Type	485BPOS
Document Period End Date	May 18, 2016
Registrant Name	FRONTIER FUNDS, INC.
Central Index Key	0001014913
Amendment Flag	false
Document Creation Date	May 18, 2016
Document Effective Date	May 23, 2016
Prospectus Date	May 25, 2016
Frontier Silk Invest New Horizons Fund \| Institutional Class
Prospectus:
Trading Symbol	FSNHX
Frontier Silk Invest New Horizons Fund \| Service Class
Prospectus:
Trading Symbol	FNHSX

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The date the document was made available and submitted, in CCYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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