Agreements (Details) - Sponsor [Member] - USD ($)	1 Months Ended	6 Months Ended	12 Months Ended
	May 16, 2019	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Agreements (Textual)
Professional fees	$ 150,000
Description of dividend fund reimbursement		The Dividend Fund and Ex-Dividend Fund reimbursed the Sponsor $4,627 and $4,511, respectively, for the amount accrued from January 1, 2019 through May 15, 2019 on May 4, 2020. No additional repayments/reimbursements under the Reimbursement Agreements will be paid following the Funds' adoption of the unitary fee structure effective May 16, 2019.
Dividend Fund [Member]
Agreements (Textual)
Management fees payable, description	The Dividend Fund will pay the Sponsor a Management Fee equal to 0.87% per year of the Dividend Fund’s average daily net assets, calculated and payable monthly in arrears, or pro rata for any partial month.	The Dividend Fund paid the Sponsor a Management Fee equal to 0.58% per year of the Dividend Fund’s average daily NAV, calculated and payable monthly, subject to a minimum monthly fee of $0.005 per Share. This minimum monthly fee was expected to apply when the Dividend Fund’s average daily NAV for such month was less than $10.34 per Share.
Professional fees			$ 150,000	$ 150,000
Dividends Payable		$ 106,808
Voluntarily waiving payments			97,121
Ex-Dividend Fund [Member]
Agreements (Textual)
Management fees payable, description	The Ex-Dividend Fund will pay the Sponsor a Management Fee equal to 0.58% per year of the Ex-Dividend Fund’s average daily net assets, calculated and payable monthly in arrears, or pro rata for any partial month.	The Ex-Dividend Fund paid the Sponsor a Management Fee equal to 0.29% per year of the Ex-Dividend Fund’s average daily NAV, calculated and payable monthly.
Professional fees			150,000	$ 150,000
Dividends Payable		$ 106,097
Voluntarily waiving payments			$ 51,310