Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities:
Net loss	$ (4,415,992)	$ (1,801,724)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	9,848,130	6,988,925
Stock issued as compensation expense	372,500	167,835
Deferred rents	(1,309,272)	(1,236,145)
Amortization of lease incentives	61,203	8,350
Amortization of deferred financing costs	638,200	927,535
Amortization of above-market lease intangibles	97,045	97,045
Amortization of below-market lease intangibles	(646,745)	(406,329)
Unrealized loss on interest rate swap valuation	820,496	157,613
Income from investments in unconsolidated entities	(234,048)	(226,024)
Distributions from investments in unconsolidated entities	1,029,786	896,670
Changes in operating assets and liabilities:
Tenant receivables	(946,209)	(1,159,874)
Due from affiliate	0	17,356
Prepaid expenses and other assets	(1,374,345)	8,592
Accounts payable, accrued and other liabilities	1,770,491	1,373,044
Due to affiliate	(962,336)	69,020
Net cash provided by operating activities	4,748,904	5,881,889
Cash Flows from Investing Activities:
Acquisition of real estate investments	(24,820,410)	(87,064,535)
Improvements to existing real estate investments	(1,665,180)	(1,730,666)
Payment of tenant improvements	(3,486,927)	0
Payments of acquisition fees to affiliate	(746,459)	(2,702,043)
Cash acquired from acquisitions of affiliates	1,016,507	0
Investments in unconsolidated entities	0	(422,440)
Collection (payment) of refundable purchase deposits	100,000	(100,000)
Net cash used in investing activities	(29,602,469)	(92,019,684)
Cash Flows from Financing Activities:
Borrowings from unsecured credit facility	12,609,000	36,450,000
Repayments of unsecured credit facility	(13,869,000)	(39,450,000)
Proceeds from mortgage notes payable	23,100,000	75,687,500
Principal payments on mortgage notes payable	(14,879,217)	(12,892,970)
Payments of deferred financing costs to third parties	(495,148)	(1,200,010)
Payments of financing fees to affiliates	(107,500)	(262,050)
Proceeds from issuance of common stock and investor deposits	34,555,691	44,223,885
Payment of offering costs	(1,716,672)	(1,500,285)
Payment of Class S commissions	1,302	(550)
Repurchases of common stock	(12,145,903)	(8,688,479)
Distributions paid to common stockholders	(4,017,986)	(1,656,073)
Net cash provided by financing activities	23,034,567	90,710,968
Net (decrease) increase in cash, cash equivalents and restricted cash	(1,818,998)	4,573,173
Cash, cash equivalents and restricted cash, beginning of year	8,755,928	4,182,755
Cash, cash equivalents and restricted cash, end of year	6,936,930	8,755,928
Supplemental disclosure of cash flow information:
Cash paid for interest	5,862,393	4,235,739
Supplemental disclosure of noncash flow information:
Reclassifications to redeemable common stock	7,484,065	6,152,439
Distributions paid to common stockholders through common stock issuance pursuant to the dividend reinvestment plan	6,352,682	5,878,104
Reduction in lease incentive obligation	0	(853,232)
(Decrease) increase in share repurchases payable	(584,676)	197,837
Increase in accrued dividends	214,851	747,640
Unpaid portion of real estate acquired	0	3,486,927
Unpaid portion of capitalized costs related to acquisitions of affiliates	1,570,622	0
Real estate properties acquired	148,054,617	0
Mortgage debt acquired	62,985,425	0
Net liabilities assumed	268,732	0
Cancellation of investment in REIT I	3,091,489	0
Class C common stock issued	81,708,971	0
Goodwill in self-management transaction	50,588,000	0
Intangible assets acquired	7,700,000	0
Operating lease right-of-use asset acquired / operating lease liability assumed	2,386,877	0
Notes payable and short-term credit facility acquired	6,230,820	0
Net liabilities assumed	1,561,580	0
Issuance of Class M OP Units and Class P OP Units in the Operating Partnership	50,603,000	0
Cancellation of investment in the Company	$ 107,400	$ 0