Summary of Significant Accounting Policies (Details) - USD ($) | Jun. 30, 2019 | Dec. 31, 2018 |
U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | $ 23,298,995 | $ 11,248,789 |
Total Other Financial Instruments | [1] | 486,657 | (271,626) |
U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,581,841 | 4,495,280 |
Total Other Financial Instruments | [1] | (193,057) | (596,913) |
Equity Cumulative Dividends Fund [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,581,841 | 4,495,280 |
Equity Ex Dividend Fund [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,298,995 | 11,248,789 |
Futures Contracts [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Futures Contracts [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Unrealized Depreciation [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | (13,680) | (629,849) |
Unrealized Depreciation [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | (206,356) | (601,214) |
Unrealized Appreciation [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | 500,337 | 358,223 |
Unrealized Appreciation [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | 13,299 | 4,301 |
U.S. Treasury Obligations [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,298,995 | 11,248,789 |
U.S. Treasury Obligations [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,581,841 | 4,495,280 |
Level 2 [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,298,995 | 11,248,789 |
Total Other Financial Instruments | [1] | | |
Level 2 [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,581,841 | 4,495,280 |
Total Other Financial Instruments | [1] | | |
Level 2 [Member] | Futures Contracts [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 2 [Member] | Futures Contracts [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 2 [Member] | Unrealized Depreciation [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 2 [Member] | Unrealized Depreciation [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 2 [Member] | Unrealized Appreciation [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 2 [Member] | Unrealized Appreciation [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 2 [Member] | U.S. Treasury Obligations [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,298,995 | 11,248,789 |
Level 2 [Member] | U.S. Treasury Obligations [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 23,581,841 | 4,495,280 |
Level 1 [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | |
Total Other Financial Instruments | [1] | 486,657 | (271,626) |
Level 1 [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | |
Total Other Financial Instruments | [1] | (193,057) | (596,913) |
Level 1 [Member] | Futures Contracts [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 1 [Member] | Futures Contracts [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 1 [Member] | Unrealized Depreciation [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | (13,680) | (629,849) |
Level 1 [Member] | Unrealized Depreciation [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | (206,356) | (601,214) |
Level 1 [Member] | Unrealized Appreciation [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | 500,337 | 358,223 |
Level 1 [Member] | Unrealized Appreciation [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | 13,299 | 4,301 |
Level 1 [Member] | U.S. Treasury Obligations [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | |
Level 1 [Member] | U.S. Treasury Obligations [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | |
Level 3 [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | |
Total Other Financial Instruments | | | |
Level 3 [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | |
Total Other Financial Instruments | [1] | | |
Level 3 [Member] | Futures Contracts [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 3 [Member] | Futures Contracts [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 3 [Member] | Unrealized Depreciation [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 3 [Member] | Unrealized Depreciation [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 3 [Member] | Unrealized Appreciation [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 3 [Member] | Unrealized Appreciation [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | |
Level 3 [Member] | U.S. Treasury Obligations [Member] | U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | |
Level 3 [Member] | U.S. Treasury Obligations [Member] | U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | |
| |
[1] | Futures contracts are valued at unrealized appreciation (depreciation) on the instrument. | |