EXPLANATORY NOTE
The sole purpose of this filing is to file revised risk/return summary information for the Small Cap Growth Fund, a separate series of Penn Series Funds, Inc., in interactive data format.
Penn Series Funds, Inc. Small Cap Growth Fund Supplement dated December 21, 2012 to the Prospectus dated May 1, 2012, as supplemented This supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with the Prospectus
Name Change of the Investment Sub-Adviser for the Small Cap Growth Fund Effective on or about January 2, 2013, Allianz Global Investors Capital LLC ("AGI Capital"), the investment sub-adviser to the Small Cap Growth Fund, will change its name to "Allianz Global Investors U.S. LLC." Accordingly, upon the effective date of AGI Capital's name change, all references in the Prospectus to "Allianz Global Investors Capital" are hereby replaced with "Allianz Global Investors U.S. LLC." |
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| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Registrant Name | dei_EntityRegistrantName | PENN SERIES FUNDS INC |
| Prospectus Date | rr_ProspectusDate | May 01, 2012 |
| Supplement [Text Block] | psfi1_SupplementTextBlock | Penn Series Funds, Inc. Small Cap Growth Fund Supplement dated December 21, 2012 to the Prospectus dated May 1, 2012, as supplemented This supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with the Prospectus
Name Change of the Investment Sub-Adviser for the Small Cap Growth Fund Effective on or about January 2, 2013, Allianz Global Investors Capital LLC ("AGI Capital"), the investment sub-adviser to the Small Cap Growth Fund, will change its name to "Allianz Global Investors U.S. LLC." Accordingly, upon the effective date of AGI Capital's name change, all references in the Prospectus to "Allianz Global Investors Capital" are hereby replaced with "Allianz Global Investors U.S. LLC." |
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Penn Series Small Cap Growth Fund
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| Risk/Return: | rr_RiskReturnAbstract | |
| Supplement [Text Block] | psfi1_SupplementTextBlock | Penn Series Funds, Inc. Small Cap Growth Fund Supplement dated December 21, 2012 to the Prospectus dated May 1, 2012, as supplemented This supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with the Prospectus
Name Change of the Investment Sub-Adviser for the Small Cap Growth Fund Effective on or about January 2, 2013, Allianz Global Investors Capital LLC ("AGI Capital"), the investment sub-adviser to the Small Cap Growth Fund, will change its name to "Allianz Global Investors U.S. LLC." Accordingly, upon the effective date of AGI Capital's name change, all references in the Prospectus to "Allianz Global Investors Capital" are hereby replaced with "Allianz Global Investors U.S. LLC." |
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Document and Entity Information
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12 Months Ended |
|---|---|
|
May 01, 2012
|
|
| Risk/Return: | |
| Document Type | Other |
| Document Period End Date | Dec. 31, 2011 |
| Registrant Name | PENN SERIES FUNDS INC |
| Central Index Key | 0000702340 |
| Amendment Flag | false |
| Document Creation Date | Dec. 21, 2012 |
| Document Effective Date | Dec. 21, 2012 |
| Prospectus Date | May 01, 2012 |
| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Registrant Name | dei_EntityRegistrantName | PENN SERIES FUNDS INC |
| Prospectus Date | rr_ProspectusDate | May 01, 2012 |
| Document Creation Date | dei_DocumentCreationDate | Dec. 21, 2012 |