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Note 8 - Related Party Transactions (Details Textual) $ / shares in Units, R$ in Millions						2 Months Ended	6 Months Ended
	Apr. 30, 2024 shares	Apr. 29, 2024 USD ($) $ / shares	Apr. 29, 2024 ZAR (R)	Apr. 18, 2024 USD ($)	Feb. 23, 2024 USD ($)	Jun. 30, 2024 USD ($) shares	Jun. 30, 2024 USD ($) shares	Mar. 30, 2024	Mar. 26, 2024 USD ($)	Mar. 26, 2024 BRL (R$)	Feb. 07, 2024 ZAR (R)
SGRP Meridian [Member]
Disposal Group, Including Discontinued Operation, Consideration | R											R 180,700,000
Proceeds from Sales of Business, Affiliate and Productive Assets		$ 7,700,000	R 144,560,000
Brazil Joint Venture [Member]
Disposal Group, Including Discontinued Operation, Consideration									$ 11,800,000	R$ 58.9
SPAR BSMT [Member]
Subsidiary, Ownership Percentage, Parent								51.00%
Meridian [Member] | FRIEDSHELF 401 Proprietary Limited [Member]
Subsidiary, Ownership Percentage, Noncontrolling Owner								49.00%
SPAR Group [Member] | SGRP Meridian [Member]
Subsidiary, Ownership Percentage, Parent											51.00%
SPAR Group [Member] | SPAR China [Member]
Percent Of Ownership Interest In Subsidiary Sold By Company					51.00%
Proceeds From Sale of Ownership Interest					$ 200,000
SPAR Marketing Force [Member]
Subsidiary, Ownership Percentage, Parent									51.00%	51.00%
Resource Plus, Inc [Member]
Payments to Acquire Interest in Joint Venture				$ 3,000,000
Resource Plus Acquisition Note [Member]
Payments to Acquire Interest in Joint Venture				250,000		$ 250,000
Debt Instrument, Face Amount				$ 2,750,000
Long-Term Debt, Gross						$ 2,750,000	$ 2,750,000
CIC Agreement [Member]
Preferred Stock, Shares Issued (in shares) | shares						2,000,000	2,000,000
Preferred Stock, Shares Issuable (in shares) | shares						3,000,000	3,000,000
William Bartels [Member]
Liability, Pension and Other Postretirement and Postemployment Benefits, Current						$ 93,000	$ 93,000
William Bartels [Member] | The 2024 Stock Repurchase Program [Member]
Treasury Stock, Shares, Acquired (in shares) | shares	1,000,000
Share Price (in dollars per share) | $ / shares		$ 1.8
William Bartels [Member] | Premium Adjustments [Member]
Related Party Transaction, Amounts of Transaction							200,000
William Bartels [Member] | Remaining Premium Adjustments [Member]
Related Party Transaction, Amounts of Transaction							1,100,000
WB Marketing, Inc [Member] | Service Fees [Member]
Related Party Transaction, Amounts of Transaction							$ 87,000

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