Consolidated Statements of (Loss) Income and Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Net revenues	$ 29,266us-gaap_SalesRevenueNet	$ 28,036us-gaap_SalesRevenueNet
Cost of revenues	22,353us-gaap_CostOfRevenue	21,806us-gaap_CostOfRevenue
Gross profit	6,913us-gaap_GrossProfit	6,230us-gaap_GrossProfit
Selling, general and administrative expense	6,096	5,921
Depreciation and amortization	468us-gaap_DepreciationAndAmortization	412us-gaap_DepreciationAndAmortization
Operating income (loss)	349us-gaap_OperatingIncomeLoss	(103)us-gaap_OperatingIncomeLoss
Interest expense	58us-gaap_InterestExpense	43us-gaap_InterestExpense
Other income, net	(29)us-gaap_OtherNonoperatingIncomeExpense	(45)us-gaap_OtherNonoperatingIncomeExpense
Income (loss) before income tax expense	320	(101)
Income tax expense	151us-gaap_IncomeTaxExpenseBenefit	119us-gaap_IncomeTaxExpenseBenefit
Net income (loss)	169us-gaap_ProfitLoss	(220)us-gaap_ProfitLoss
Net income attributable to non-controlling interest	243	149
Net income (loss) attributable to SPAR Group, Inc.	(74)us-gaap_NetIncomeLoss	(369)us-gaap_NetIncomeLoss
Basic and diluted loss per common share: (in Dollars per share)		$ (0.02)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average common shares – basic and diluted (in Shares)	20,562	20,557
Net income (loss)	169us-gaap_ProfitLoss	(220)us-gaap_ProfitLoss
Other comprehensive loss:
Foreign currency translation adjustments	(664)	(47)
Comprehensive loss	(495)us-gaap_ComprehensiveIncomeNetOfTax	(267)us-gaap_ComprehensiveIncomeNetOfTax
Comprehensive loss attributable to non-controlling interest	(243)	(149)
Comprehensive income (loss) attributable to SPAR Group, Inc.	$ (738)	$ (416)

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.