CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities
Net income	$ 590,619	$ 619,448
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation and amortization	1,438,908	1,398,358
Unrealized gain on marketable equity securities	(193,705)	(15,517)
Amortization of loan procurement costs	200,819	49,118
Stock-based compensation	102,989	80,771
Changes in operating assets and liabilities:
Accounts receivable	(96,474)	35,685
Prepaid expenses and other assets	(37,436)	(41,937)
Accounts payable and accrued expenses	(298,390)	155,323
Net cash provided by operating activities	1,707,330	2,281,249
Cash flows from investing activities
Acquisition of self storage properties	(6,287,082)
Construction	(1,437,419)	(70,703)
Improvements and equipment additions	(58,186)	(93,829)
Net cash used in investing activities	(7,782,687)	(164,532)
Cash flows from financing activities
Issuance of common stock under rights offering, net of expenses	6,280,987
Line of credit borrowing	4,914,000
Principal payments on note payable	(470,955)	(190,488)
Line of credit issuance costs		(477,981)
Dividends paid	(2,107,376)	(1,992,397)
Net cash provided by (used in) financing activities	8,616,656	(2,660,866)
Net increase (decrease) in cash and cash equivalents	2,541,299	(544,149)
Cash, cash equivalents, and restricted cash, beginning of period	1,712,266	2,256,415
Cash, cash equivalents, and restricted cash, end of period	4,253,565	1,712,266
Supplemental cash flow and noncash information
Cash paid for interest	821,434	837,074
Supplemental disclosure of noncash activities:
Dividends accrued on restricted stock awards	$ 7,179	$ 2,930