XML 112 R74.htm IDEA: XBRL DOCUMENT v2.4.1.9

Note 12 - Income Taxes and Deferred Tax Asset/Liability (Details) - Deferred Tax Assets and Liabilities (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets related to:
Valuation allowance for deferred tax assets	$ (36,600)us-gaap_DeferredTaxAssetsValuationAllowance
Current [Member]
Assets related to:
Accrued compensation and other	1,059us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits / us-gaap_StatementScenarioAxis = strl_CurrentMember	265us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits / us-gaap_StatementScenarioAxis = strl_CurrentMember
Deferred revenue	125us-gaap_DeferredTaxAssetsDeferredIncome / us-gaap_StatementScenarioAxis = strl_CurrentMember	6,993us-gaap_DeferredTaxAssetsDeferredIncome / us-gaap_StatementScenarioAxis = strl_CurrentMember
Valuation allowance for deferred tax assets	(1,184)us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_StatementScenarioAxis = strl_CurrentMember	(7,258)us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_StatementScenarioAxis = strl_CurrentMember
Long-Term [Member]
Assets related to:
Accrued compensation and other	809us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits / us-gaap_StatementScenarioAxis = strl_LongTermMember	451us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits / us-gaap_StatementScenarioAxis = strl_LongTermMember
Amortization and impairment of goodwill	10,816us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets / us-gaap_StatementScenarioAxis = strl_LongTermMember	11,108us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets / us-gaap_StatementScenarioAxis = strl_LongTermMember
Accreted interest to put		985strl_DeferredTaxAssetsAccretedInterestToPut / us-gaap_StatementScenarioAxis = strl_LongTermMember
Contingency on lawsuit		106us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements / us-gaap_StatementScenarioAxis = strl_LongTermMember
Noncontrolling interest	2,326strl_DeferredTaxAssetsNoncontrollingInterest / us-gaap_StatementScenarioAxis = strl_LongTermMember	1,439strl_DeferredTaxAssetsNoncontrollingInterest / us-gaap_StatementScenarioAxis = strl_LongTermMember
Revaluation of put/call liabilities	8,471us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies / us-gaap_StatementScenarioAxis = strl_LongTermMember	5,127us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies / us-gaap_StatementScenarioAxis = strl_LongTermMember
Net operating loss carryforwards	27,172us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_StatementScenarioAxis = strl_LongTermMember	18,302us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_StatementScenarioAxis = strl_LongTermMember
Valuation allowance for deferred tax assets	(35,393)us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_StatementScenarioAxis = strl_LongTermMember	(23,773)us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_StatementScenarioAxis = strl_LongTermMember
Liabilities related to:
Depreciation of property and equipment	(14,186)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment / us-gaap_StatementScenarioAxis = strl_LongTermMember	(12,669)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment / us-gaap_StatementScenarioAxis = strl_LongTermMember
Other	$ (15)us-gaap_DeferredTaxLiabilitiesOther / us-gaap_StatementScenarioAxis = strl_LongTermMember	$ (1,076)us-gaap_DeferredTaxLiabilitiesOther / us-gaap_StatementScenarioAxis = strl_LongTermMember

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accreted interest to put.

+ References

No definition available.

+ Details

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X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from non-controlling interest.

+ References

No definition available.

+ Details

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319



Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Topic 740

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-Section 25

-Paragraph 20

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-Topic 740

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319



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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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- Definition

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from employee benefit costs not otherwise specified in the taxonomy, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 740

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-Paragraph 20

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X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from contingent liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the estimated loss from legal settlements.

+ References

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-Name Accounting Standards Codification

-Topic 740

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-Name Accounting Standards Codification

-Topic 740

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-Section 25

-Paragraph 20

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

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-Paragraph 2

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed.

+ References

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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