Stockholders' Equity (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Feb. 21, 2021	Dec. 31, 2020
Subsidiary, Sale of Stock [Line Items]
Proceeds from issuance of common stock, accrual basis		$ 12,977,000
Distributions paid in cash	$ 1,503,402	$ 888,805
Common stock, shares outstanding (in shares)	12,232,289			12,232,289
Long Term Incentive Plan
Subsidiary, Sale of Stock [Line Items]
Share-based compensation	$ 45,000
Performance Shares | Long Term Incentive Plan
Subsidiary, Sale of Stock [Line Items]
Number of equity instruments other than options awarded			52,500
Time Based Shares | Long Term Incentive Plan
Subsidiary, Sale of Stock [Line Items]
Number of equity instruments other than options awarded			17,500
Class A
Subsidiary, Sale of Stock [Line Items]
Common stock, shares outstanding (in shares)	12,214,771
Class TX
Subsidiary, Sale of Stock [Line Items]
Common stock, shares outstanding (in shares)	17,518
Common Stock
Subsidiary, Sale of Stock [Line Items]
Issuance of common stock (in shares)	0