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Note 3 - Variable Interest Entities (Details) - Consolidated Balance Sheet-Myers (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
Current assets: |  |  |  |
Cash and cash equivalents | $ 22,843 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 1,872 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 3,142 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 16,371 us-gaap_CashAndCashEquivalentsAtCarryingValue
Contracts receivable, including retainage | 78,896 us-gaap_ReceivablesLongTermContractsOrPrograms | 77,245 us-gaap_ReceivablesLongTermContractsOrPrograms |  |
Other current assets | 5,278 us-gaap_OtherAssetsCurrent | 11,377 us-gaap_OtherAssetsCurrent |  |
Total current assets | 156,974 us-gaap_AssetsCurrent | 114,485 us-gaap_AssetsCurrent |  |
Property and equipment, net | 87,098 us-gaap_PropertyPlantAndEquipmentNet | 93,683 us-gaap_PropertyPlantAndEquipmentNet |  |
Other assets, net | 7,559 us-gaap_OtherAssetsNoncurrent | 10,030 us-gaap_OtherAssetsNoncurrent |  |
Goodwill | 54,820 us-gaap_Goodwill | 54,820 us-gaap_Goodwill |  | 54,050 us-gaap_Goodwill
Total assets | 306,451 us-gaap_Assets | 273,018 us-gaap_Assets |  |
Current liabilities: |  |  |  |
Accounts payable | 66,792 us-gaap_AccountsPayableCurrent | 61,599 us-gaap_AccountsPayableCurrent |  |
Total current liabilities | 104,650 us-gaap_LiabilitiesCurrent | 105,799 us-gaap_LiabilitiesCurrent |  |
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |
Current assets: |  |  |  |
Cash and cash equivalents | 148 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 566 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Contracts receivable, including retainage | 21,327 us-gaap_ReceivablesLongTermContractsOrPrograms / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 6,475 us-gaap_ReceivablesLongTermContractsOrPrograms / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Other current assets | 7,656 us-gaap_OtherAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 7,964 us-gaap_OtherAssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Total current assets | 29,131 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 15,005 us-gaap_AssetsCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Property and equipment, net | 9,303 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 6,869 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Other assets, net |  | 5 us-gaap_OtherAssetsNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Goodwill | 1,501 us-gaap_Goodwill / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 1,501 us-gaap_Goodwill / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Total assets | 39,935 us-gaap_Assets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 23,380 us-gaap_Assets / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Current liabilities: |  |  |  |
Accounts payable | 15,795 us-gaap_AccountsPayableCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 8,361 us-gaap_AccountsPayableCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Other current liabilities | 9,000 us-gaap_OtherLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 7,080 us-gaap_OtherLiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Total current liabilities | 24,795 us-gaap_LiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 15,441 us-gaap_LiabilitiesCurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Long-term liabilities: |  |  |  |
Other long-term liabilities | 16 us-gaap_OtherLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | 137 us-gaap_OtherLiabilitiesNoncurrent / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |
Total liabilities | $ 24,811 us-gaap_Liabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember | $ 15,578 us-gaap_Liabilities / us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis = us-gaap_VariableInterestEntityPrimaryBeneficiaryMember |  |

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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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