Summary of Significant Accounting Policies (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019 |
U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | $ 18,835,724 | $ 23,583,730 |
Total Other Financial Instruments | [1] | (2,915,316) | 486,829 |
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 | [1] | (2,915,316) | 486,829 |
U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | Level 2 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 18,835,724 | 23,583,730 |
Total Other Financial Instruments | [1] | | |
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 | [1] | | |
U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | U.S. Treasury Obligations [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 18,835,724 | 23,583,730 |
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 | | 18,835,724 | 23,583,730 |
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] | Unrealized Appreciation [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | 486,829 |
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 | [1] | | 486,829 |
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 | [1] | | |
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 | [1] | | |
U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | Unrealized Depreciation [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | (2,915,316) | |
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 | [1] | (2,915,316) | |
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 | [1] | | |
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 | [1] | | |
U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 31,392,285 | |
Total Other Financial Instruments | [1] | 1,370,127 | |
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 | [1] | 1,370,127 | 360,953 |
U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | Level 2 [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | 31,392,285 | 25,837,538 |
Total Other Financial Instruments | [1] | | |
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 | [1] | | |
U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | U.S. Treasury Obligations [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | 25,837,538 |
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 | | 31,392,285 | 25,837,538 |
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] | Unrealized Appreciation [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | 1,370,127 | 392,188 |
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 | [1] | 1,370,127 | 392,188 |
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 | [1] | | |
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 | [1] | | |
U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | Unrealized Depreciation [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Other Financial Instruments | [1] | | (31,235) |
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 | [1] | | (31,235) |
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 | [1] | | |
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] | | |
U.S. Equity Ex-Dividends Fund-Series 2027 | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | | 25,837,538 |
Total Other Financial Instruments | [1] | | $ 360,953 |
U.S. Equity Ex-Dividends Fund-Series 2027 | U.S. Treasury Obligations [Member] | | | |
Summary of Investment Holdings [Line Items] | | | |
Total Investments in Securities | | $ 31,392,285 | |
| |
[1] | Futures contracts are valued at unrealized appreciation (depreciation) on the instrument. | |