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