Institutional Shares The Brown Capital Management Small Company Fund Market Risk [Member] Investment Style Risk [Member] Investment Advisor Risk [Member] Market Sector Risk [Member] Equity Securities Risk [Member] Small Companies Risk [Member] Micro-Cap Companies Risk [Member] The Brown Capital Management International Small Company Fund Micro Companies Risk [Member] Foreign Securities Risk [Member] Emerging Markets Securities Risk [Member] Investor Shares The Brown Capital Management Small Company Fund - Institutional Shares The Brown Capital Management International Small Company Fund - Institutional Shares The Brown Capital Management Small Company Fund - Investor Shares The Brown Capital Management International Small Company Fund - Investor Shares S&P 500® Index (reflects no deduction for fees, expenses, or taxes) Russell 2000® Growth Index (reflects no deduction for fees, expenses, or taxes) MSCI All Country World ex-USA Index (reflects no deduction for fees, expenses, or taxes) MSCI World Ex USA Small Cap Growth Index (reflects no deduction for fees, expenses, or taxes) The Brown Capital Management Small Company Fund The Brown Capital Management Small Company Fund - Institutional Shares The Brown Capital Management Small Company Fund - Investor Shares The Brown Capital Management International Small Company Fund The Brown Capital Management International Small Company Fund - Institutional Shares The Brown Capital Management International Small Company Fund - Investor Shares Emerging Markets Securities Risk. Foreign Securities Risk. Micro Companies Risk. Small Companies Risk. Equity Securities Risk. Market Sector Risk. Investment Advisor Risk. Investment Style Risk. Market Risk. Micro-Cap Companies Risk. Institutional Shares. S&P 500® Index (reflects no deduction for fees, expenses, or taxes) Russell 2000® Growth Index (reflects no deduction for fees, expenses, or taxes) MSCI All Country World ex-USA Index (reflects no deduction for fees, expenses, or taxes) MSCI World Ex USA Small Cap Growth Index (reflects no deduction for fees, expenses, or taxes) Investor Shares.