Change in Status - Fair Value of Properties on Effective Date of Change in Status (Details) - Self Storage Properties - USD ($)	20 Months Ended
	Sep. 30, 2017	Jan. 19, 2016
Fair Value Of Properties On Effective Date Of Change In Status [Line Items]
Fair value of self storage properties on the effective date of the change in status		$ 34,624,573
Total net assets of combined self storage properties	$ 26,657,487
Increase to the initial carrying value of the net assets of self storage properties on the effective date of the change in status	7,967,086
Prepaid Expenses and Other Assets [Member]
Fair Value Of Properties On Effective Date Of Change In Status [Line Items]
Total net assets of combined self storage properties	206,146
Accounts Payable and Accrued Expenses [Member]
Fair Value Of Properties On Effective Date Of Change In Status [Line Items]
Total net assets of combined self storage properties	(488,514)
Property Plant and Equipment [Member]
Fair Value Of Properties On Effective Date Of Change In Status [Line Items]
Total net assets of combined self storage properties	26,388,167
Cash and Cash Equivalents [Member]
Fair Value Of Properties On Effective Date Of Change In Status [Line Items]
Total net assets of combined self storage properties	464,585
Accounts Receivable [Member]
Fair Value Of Properties On Effective Date Of Change In Status [Line Items]
Total net assets of combined self storage properties	$ 87,103