Retail Class [Member] James Balanced: Golden Rainbow Fund Market Disruptions Risk [Member] Equity Market Risk [Member] Fixed Income Risk [Member] Management Risk [Member] Large, Medium, Small, and Micro Capitalization Company Risk [Member] Sector Risk [Member] Equity Securities Risk [Member] Inflation Risk [Member] Foreign Investment Risk [Member] Sovereign Debt Risk [Member] Exchange-Traded Fund Risk [Member] Municipal Securities Risk [Member] James Small Cap Fund Small and Micro Capitalization Company Risk [Member] Financial Sector Risk [Member] Institutional Class [Member] JAMES MICRO CAP FUND Micro Cap Company Risk [Member] James Aggressive Allocation Fund Aggressive Asset Allocation Risk [Member] James Balanced: Golden Rainbow Fund Retail Class James Small Cap Fund James Balanced: Golden Rainbow Fund Institutional Class JAMES MICRO CAP FUND James Aggressive Allocation Fund Bloomberg US 3000 Total Return Index (reflects no deduction for fees, expenses or taxes) VettaFi US Equity 3000 Index (reflects no deduction for fees, expenses or taxes) Blended Index (25% Bloomberg US 1000 Total Return Index, 25% Bloomberg US 2000 Total Return Index, 50% Bloomberg Intermediate U.S. Government/Credit Bond Index) (reflects no deduction for fees, expenses or taxes) Bloomberg US 2000 Total Return Index (reflects no deduction for fees, expenses or taxes) Bloomberg US Micro-Cap Total Return Index (reflects no deduction for fees, expenses or taxes) 65% Bloomberg US 3000 Total Return Index, 35% Bloomberg U.S. Aggregate Government/Credit Bond Index (reflects no deduction for fees, expenses or taxes) James Small Cap Fund [Default Label] JAMES MICRO CAP FUND [Default Label] James Aggressive Allocation Fund [Default Label]