Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Note 3 - Restatement of Previously Issued Consolidated Financial Statements (as Restated) - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash and cash equivalents	$ 18,221				$ 4,491
Accounts receivable, net	24,766				43,106
Prepaid expenses and other current assets	3,009				2,264
Current assets of discontinued operations	0				26,248
Total current assets	45,996				76,109
Property and equipment, net	2,015				2,717
Operating lease right-of-use assets	630				1,931
Goodwill	856				1,294
Intangible assets, net	841				1,178
Deferred income taxes	4,259				3,322
Other assets	1,834				1,727
Non-current assets of discontinued operations	0				2,003
Total assets	56,431				90,281
Accrued expenses and other current liabilities	3,533				4,710
Customer incentives and deposits	892				1,905
Lines of credit and short-term loans	16,082				17,530
Current operating lease liabilities	276				945
Current liabilities of discontinued operations	0				15,455
Total current liabilities	30,050				48,565
Operating lease liabilities, less current portion	353				986
Long-term debt	1,722				310
Non-current liabilities of discontinued operations	0				174
Total liabilities	32,125				50,035
Common stock, $.01 par value: Authorized shares – 47,000,000 Issued and outstanding shares – 23,449,701 at December 31, 2024 and 23,241,000 at December 31, 2023	234				232
Treasury stock, at cost 1,205,485 shares at December 31, 2024 and 205,485 Shares at December 31, 2023	(2,075)				(285)
Additional paid-in capital	19,886				21,004
Accumulated other comprehensive (loss)	(1,198)				(3,341)
Retained earnings	7,459				10,609
Total SPAR Group, Inc. equity	24,306				28,226
Non-controlling interest	0				12,020
Total equity	24,306	$ 29,541	$ 30,700	$ 40,056	40,246	$ 38,061
Total liabilities and equity	56,431				90,281
Series B Preferred Stock [Member]
Preferred stock, Series - B. $.01 par value: Authorized and available shares– 2,000,000 Issued and outstanding shares– 0 at December 31, 2024 and 650,000 at December 31, 2023	0				7
Nonrelated Party [Member]
Accounts payable	8,767				4,815
Related Party [Member]
Accounts payable	$ 0				3,205
Previously Reported [Member]
Cash and cash equivalents			21,695		10,719
Accounts receivable, net			37,963		59,776
Prepaid expenses and other current assets			2,117		5,614
Current assets of discontinued operations			0		0
Total current assets			61,775		76,109
Property and equipment, net			2,467		2,871
Operating lease right-of-use assets			1,154		2,323
Goodwill			1,238		1,382
Intangible assets, net			718		1,180
Deferred income taxes			1,029		4,687
Other assets			1,644		1,729
Non-current assets of discontinued operations			0		0
Total assets			70,025		90,281
Accrued expenses and other current liabilities			5,643		15,274
Customer incentives and deposits			4,541		1,905
Lines of credit and short-term loans			18,442		17,530
Current operating lease liabilities			482		1,163
Current liabilities of discontinued operations			0		0
Total current liabilities			36,942		48,565
Operating lease liabilities, less current portion			672		1,160
Long-term debt			1,711		310
Non-current liabilities of discontinued operations					0
Total liabilities			39,325		50,035
Preferred stock, Series - B. $.01 par value: Authorized and available shares– 2,000,000 Issued and outstanding shares– 0 at December 31, 2024 and 650,000 at December 31, 2023			0
Common stock, $.01 par value: Authorized shares – 47,000,000 Issued and outstanding shares – 23,449,701 at December 31, 2024 and 23,241,000 at December 31, 2023			234		232
Treasury stock, at cost 1,205,485 shares at December 31, 2024 and 205,485 Shares at December 31, 2023					(285)
Additional paid-in capital			13,338		21,004
Accumulated other comprehensive (loss)			(2,268)		(3,341)
Retained earnings			20,151		10,609
Total SPAR Group, Inc. equity			29,380		28,226
Non-controlling interest			1,320		12,020
Total equity		29,541	30,700	$ 40,056	40,246
Total liabilities and equity			70,025		90,281
Previously Reported [Member] \| Series B Preferred Stock [Member]
Preferred stock, Series - B. $.01 par value: Authorized and available shares– 2,000,000 Issued and outstanding shares– 0 at December 31, 2024 and 650,000 at December 31, 2023					7
Previously Reported [Member] \| Nonrelated Party [Member]
Accounts payable			7,211		9,488
Previously Reported [Member] \| Related Party [Member]
Accounts payable			623		3,205
Revision of Prior Period, Adjustment [Member]
Cash and cash equivalents			0		(6,228)
Accounts receivable, net			0		(16,670)
Prepaid expenses and other current assets			0		(3,350)
Current assets of discontinued operations			0		26,248
Total current assets			0		0
Property and equipment, net			0		(154)
Operating lease right-of-use assets			0		(392)
Goodwill			0		(88)
Intangible assets, net			0		(2)
Deferred income taxes			0		(1,365)
Other assets			0		(2)
Non-current assets of discontinued operations			0		2,003
Total assets			0		0
Accrued expenses and other current liabilities			0		(10,564)
Customer incentives and deposits			0		0
Lines of credit and short-term loans			0		0
Current operating lease liabilities			0		(218)
Current liabilities of discontinued operations			0		15,455
Total current liabilities			0		0
Operating lease liabilities, less current portion			0		(174)
Long-term debt			0		0
Non-current liabilities of discontinued operations			0		174
Total liabilities			0		0
Preferred stock, Series - B. $.01 par value: Authorized and available shares– 2,000,000 Issued and outstanding shares– 0 at December 31, 2024 and 650,000 at December 31, 2023			0
Common stock, $.01 par value: Authorized shares – 47,000,000 Issued and outstanding shares – 23,449,701 at December 31, 2024 and 23,241,000 at December 31, 2023			0		0
Treasury stock, at cost 1,205,485 shares at December 31, 2024 and 205,485 Shares at December 31, 2023					0
Additional paid-in capital			7,518		0
Accumulated other comprehensive (loss)			0		0
Retained earnings			(7,518)		0
Total SPAR Group, Inc. equity			0		0
Non-controlling interest			0		0
Total equity		$ 0	0		0
Total liabilities and equity			0		0
Revision of Prior Period, Adjustment [Member] \| Series B Preferred Stock [Member]
Preferred stock, Series - B. $.01 par value: Authorized and available shares– 2,000,000 Issued and outstanding shares– 0 at December 31, 2024 and 650,000 at December 31, 2023					0
Revision of Prior Period, Adjustment [Member] \| Nonrelated Party [Member]
Accounts payable			0		(4,673)
Revision of Prior Period, Adjustment [Member] \| Related Party [Member]
Accounts payable			$ 0		$ 0