Note 13 - Purchase of Interest in Subsidiaries (Tables)

12 Months Ended

Dec. 31, 2012

Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block]

	Year Ended		Year Ended
	December 31, 2012		December 31, 2011
Net income attributed to SPAR Group, Inc.	$	2,930	$	2,214
Increase/(Decrease) in SPAR Group, Inc. paid in capital for sale/purchase of  subsidiaries common stock		164		(159	)
Change from net income attributed to SPAR Group, Inc. and transfer from/to non-controlling interest	$	3,094	$	2,055

Grupo [Member]

Business Acquisition, Pro Forma Information [Table Text Block]

	Revenue		Net Income
Actual from September 1 to December 31, 2011	$	4,649	$	(65	)
2011 Supplemental pro forma from January 1 to December 31, 2011	$	83,900	$	2,400
2011 Adjusted supplemental pro forma from January 1 to December 31, 2011	$	83,900	$	2,500

SPAR NDS [Member]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

Intangible asset	$	258,060
Goodwill		86,172
	$	344,232

Business Ideas Provider GRUP SRL [Member]

Business Acquisition, Pro Forma Information [Table Text Block]

	Revenue		Net Income
Actual from April 1 to December 31, 2012	$	4,140	$	172
2012 Supplemental pro forma from January 1 to December 31, 2012	$	108,175	$	3,077
2011 Supplemental pro forma from January 1 to December 31, 2011	$	78,413	$	2,257

NMS [Member]

Business Acquisition, Pro Forma Information [Table Text Block]

	Revenue		Net Income
Actual from September 1 to December 31, 2012	$	1,922	$	138
2012 Supplemental pro forma from January 1 to December 31, 2012	$	106,396	$	3,190
2011 Supplemental pro forma from January 1 to December 31, 2011	$	76,839	$	1,326

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

Intangible asset	$	526,320
Goodwill		332,730
	$	859,050

CMR Meridien [Member]

Business Acquisition, Pro Forma Information [Table Text Block]

	Revenue		Net Income
Actual from October 1 to December 31, 2012	$	2,364	$	36
2012 Supplemental pro forma from January 1 to December 31, 2012	$	113,067	$	2,963
2011 Supplemental pro forma from January 1 to December 31, 2011	$	87,326	$	2,574