Swan Enhanced Dividend Income ETF Active Management Risk [Member] Cash Or Cash Equivalents Risk [Member] Companyspecific Risk [Member] Covered Call Risk [Member] Dividend Paying Stock Risk [Member] Early Close Trading Halt Risk [Member] Equity Securities Risk [Member] Etf Structure Risk [Member] Not Individually Redeemable [Member] Trading Issues [Member] Market Price Variance [Member] Large Capitalization Companies Risk [Member] Limited History Of Operations [Member] Management Risk [Member] Market And Geopolitical Risk [Member] Mid Capitalization Companies Risk [Member] Options Risk [Member] Sector Exposure Risk [Member] Technology Sector Risk [Member] Swan Enhanced Dividend Income ETF S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes) CBOE S&P 500 BuyWrite Index Swan Enhanced Dividend Income ETF [Default Label]