Short-Intermediate Bond Fund Institutional Class Institutional Plus Class General Market Risk Fixed Income Securities Risk Counterparty Risk Mortgage-Backed and Other Asset-Backed Securities Risk Guarantee Risk High-Yield Bonds, Lower-Rated Bonds, and Unrated Securities Risk Municipal Securities Risk U.S. Treasury and Agency Securities Risk Convertible Securities Risk Restricted Securities Risk Derivatives Risk Repurchase Agreement Risk Foreign Securities Risk Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) Bloomberg 1-3 Year US Government/ Credit Index (reflects no deduction for fees, expenses or taxes) Income Fund Institutional Class Institutional Plus Class Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) Tributary Nebraska Tax-Free Fund Institutional Plus Class Risk of Taxation Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses or taxes) Bloomberg 1-15 Year Municipal Blend Index (1-17) (reflects no deduction for fees, expenses or taxes) Balanced Fund Institutional Class Institutional Plus Class Equity Securities Risk Preferred Stock Risk Value Investing Risk Large-Cap Stock Risk Mid-Cap and Small-Cap Stock Risk Russell 3000 Index (reflects no deduction for fees, expenses or taxes) Composite Index (60% Russell 3000® Index, 40% Bloomberg Barclays U.S. Intermediate Government/Credit Bond Index) (reflects no deduction for fees, expenses or taxes) Bloomberg U.S. Intermediate Government/Credit Bond Index (reflects no deduction for fees, expenses or taxes) Tributary Small/Mid Cap Fund Institutional Class Institutional Plus Class Rights Risk ADR Risk Options Risk Russell 2500 Index (reflects no deduction for fees, expenses or taxes) Russell 2500 Value Index (reflects no deduction for fees, expenses or taxes) Small Company Fund Institutional Class Institutional Plus Class Small-Cap Stock Risk Russell 2000® Index (reflects no deduction for fees, expenses or taxes) Russell 2000® Value Index (reflects no deduction for fees, expenses or taxes) C000063509Member C000091255Member Index3Member C000164428Member C000063510Member C000091256Member C000195178Member C000195179Member C000063513Member C000091259Member