Equity - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Stockholders Equity Note [Abstract]
Subscription proceeds pursuant to the Reinvestment Plan	$ 0	$ 200,000
Subscription proceeds pursuant to the Reinvestment Plan, shares	0	20,000
Proceeds from public offering	$ 0	$ 7,000,000
Common stock, shares sold	0	700,000
Cash distributions declared	$ 705,473	$ 402,305
Cash distributions paid	705,473	176,860
Redemptions of common stock	$ 0	$ 25,382
Redemption of common stock, per share		$ 10