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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, 2013	Dec. 31, 2012
Total combined:
Current assets	$ 156,963	$ 164,758
Less current liabilities	91,457	77,274
Sterling’s receivables from and equity in construction joint ventures	8,543	11,005
Corporate Joint Venture [Member]
Total combined:
Current assets	63,773	92,102
Less current liabilities	(55,474)	(48,002)
Net assets	8,299	44,100
Backlog	162,388	213,924
Sterling’s noncontrolling interest in backlog	54,521	77,222
Sterling’s receivables from and equity in construction joint ventures	$ 8,542	$ 11,005

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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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The net of assets and liabilities.

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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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