Summary of Significant Accounting Policies (Details)	3 Months Ended
	Mar. 31, 2017 USD ($)
Held by Wells Fargo Bank N.A. [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Investments and Cash	$ 1,406,000
Maximum [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Offering Costs as Percentage of Month-end Net Asset Value	0.50%