Note 3 - Earnings Per Share (Details) - Basic and Diluted Earnings Per Share (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Numerator:
Net loss attributable to SPAR Group, Inc.	$ (74)	$ (369)
Denominator:
Shares used in basic and diluted net income per share calculation	20,562	20,557
Basic and diluted net loss per common share:		$ (0.02)