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Note 3 - Construction Joint Ventures (Details) - Summary of Joint Venture Condensed Balance Sheet Information Included as Part of Consolidated Financial Statements (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Total combined:
Current assets	$ 177,048	$ 114,485
Less current liabilities	135,876	105,799
Sterling’s receivables from and equity in construction joint ventures	8,817	6,118
Corporate Joint Venture [Member]
Total combined:
Current assets	33,705	51,329
Less current liabilities	(53,916)	(64,531)
Net assets	(20,211)	(13,202)
Backlog	68,690	101,014
Sterling’s noncontrolling interest in backlog	20,426	30,652
Sterling’s receivables from and equity in construction joint ventures	$ 8,817	$ 6,118

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Amounts due from minority-owned entities in which the reporting entity shares joint control with another party or group, due within 1 year (or 1 business cycle). Also, includes the entity's equity in minority-owned joint ventures.

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.

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