CONSOLIDATED STATEMENTS OF OPERATIONS and COMPREHENSIVE INCOME - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues
Rental income	$ 2,983,039	$ 2,965,178	$ 5,896,500	$ 5,889,582
Total revenues	3,109,038	3,086,018	6,143,078	6,123,971
Expenses
Property operations	1,171,169	1,089,977	2,402,285	2,211,315
General and administrative	892,822	809,623	1,695,550	1,489,335
Depreciation and amortization	409,136	408,538	816,064	815,379
Business development			2,275	5,249
Total expenses	2,473,127	2,308,138	4,916,174	4,521,278
Operating income	635,911	777,880	1,226,904	1,602,693
Other income (expense)
Dividend and interest income	87,450	86,488	142,327	128,054
Unrealized gain (loss) on marketable equity securities	79,530	(115,347)	(95,348)	246,703
Interest expense	(211,361)	(170,951)	(416,203)	(406,839)
Total other expense, net	(44,381)	(199,810)	(369,224)	(32,082)
Net income and comprehensive income	$ 591,530	$ 578,070	$ 857,680	$ 1,570,611
Earnings per share
Basic	$ 0.05	$ 0.05	$ 0.08	$ 0.14
Diluted	$ 0.05	$ 0.05	$ 0.08	$ 0.14
Weighted average shares outstanding
Basic	11,087,539	11,041,503	11,080,489	11,037,868
Diluted	11,134,894	11,083,258	11,121,296	11,081,799
Other property related income
Revenues
Revenues	$ 108,489	$ 98,375	$ 212,339	$ 190,112
Management fees and other income
Revenues
Revenues	$ 17,510	$ 22,465	$ 34,239	$ 44,277

Property operations.

No definition available.

Name:	self_PropertyOperations
Namespace Prefix:	self_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Business development involves the development of products and services, their delivery, design and their implementation. Business development includes a number of techniques designed to grow an economic enterprise. Such techniques include, but are not limited to, assessments of marketing opportunities and target markets, intelligence gathering on customers and competitors, generating leads for possible sales, follow-up sales activity, formal proposal writing and business model design. Business development involves evaluating a business and then realizing its full potential, using such tools as marketing, sales, information management and customer service.