Summary of Significant Accounting Policies (Details) - USD ($) | Sep. 30, 2020 | Dec. 31, 2019 |
U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | | |
Summary of Investment Holdings [Line Items] | | |
Total Investments in Securities | $ 18,455,382 | $ 23,583,730 |
Total Other Financial Instruments | (4,094,919) | 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 | (4,094,919) | 486,829 |
U.S. Equity Cumulative Dividends Fund-Series 2027 [Member] | Level 2 [Member] | | |
Summary of Investment Holdings [Line Items] | | |
Total Investments in Securities | 18,455,382 | 23,583,730 |
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 | 18,455,382 | 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 | 18,455,382 | 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 | | 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 | | 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 | | |
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 | (4,094,919) | |
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 | (4,094,919) | |
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 | 28,496,897 | |
Total Other Financial Instruments | 716,382 | |
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 | 716,382 | 360,953 |
U.S. Equity Ex-Dividend Fund-Series 2027 [Member] | Level 2 [Member] | | |
Summary of Investment Holdings [Line Items] | | |
Total Investments in Securities | 28,496,897 | 25,837,538 |
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 | | 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 | 28,496,897 | 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 | 919,594 | 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 | 919,594 | 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 | | |
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 | (203,212) | (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 | (203,212) | (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 | | |
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 | | |
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 | | $ 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 | $ 28,496,897 | |