2.4.0.8057 - Disclosure - Note 9 - Restricted Cash and Performance Bonds (Details) - Restricted CashtruefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalse$c0_AsOf30Jun2013http://www.sec.gov/CIK0001023734instant2013-06-30T00:00:000001-01-01T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$c1_AsOf31Dec2012http://www.sec.gov/CIK0001023734instant2012-12-31T00:00:000001-01-01T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3us-gaap_RestrictedCashAndCashEquivalentsItemsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Restricted Cash and Cash Equivalents Items [Line Items]2false 4us-gaap_RestrictedCashAndCashEquivalentsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse91190009119USD$falsetruefalse2truefalsefalse7279900072799USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Restricted cash3false 4us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValueus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse50100005010USD$falsefalsefalse2truefalsefalse2512900025129USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Current portion of restricted cash as of the end of the period4false 4us-gaap_RestrictedCashAndCashEquivalentsNoncurrentus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse41090004109USD$falsefalsefalse2truefalsefalse4767000047670USD$falsefalsefalsexbrli:monetaryItemTypemonetaryCash and equivalents whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Long-term portion of restricted cash as of the end of the period5false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3false USDtruefalse$c80_AsOf30Jun2013_PerformanceBondsMemberhttp://www.sec.gov/CIK0001023734instant2013-06-30T00:00:000001-01-01T00:00:00falsefalsePerformance Bonds [Member]us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisxbrldihttp://xbrl.org/2006/xbrldibpz_PerformanceBondsMemberus-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Performance Bonds [Member]6true 3us-gaap_RestrictedCashAndCashEquivalentsItemsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Restricted Cash and Cash Equivalents Items [Line Items]7false 4us-gaap_RestrictedCashAndCashEquivalentsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse34600003460USD$falsefalsefalse2truefalsefalse33380003338USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Restricted cash8false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse5false USDtruefalse$c82_AsOf31Dec2012_InsuranceBondsMemberhttp://www.sec.gov/CIK0001023734instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseInsurance Bonds [Member]us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisxbrldihttp://xbrl.org/2006/xbrldibpz_InsuranceBondsMemberus-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Insurance Bonds [Member]9true 3us-gaap_RestrictedCashAndCashEquivalentsItemsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Restricted Cash and Cash Equivalents Items [Line Items]10false 4us-gaap_RestrictedCashAndCashEquivalentsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse825000825USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Restricted cash11false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse6false USDtruefalse$c83_AsOf30Jun2013_PerformanceObligationsAndCommitmentsForTheGasToPowerSiteMemberhttp://www.sec.gov/CIK0001023734instant2013-06-30T00:00:000001-01-01T00:00:00falsefalsePerformance Obligations And Commitments For The Gas-To-Power Site [Member]us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisxbrldihttp://xbrl.org/2006/xbrldibpz_PerformanceObligationsAndCommitmentsForTheGasToPowerSiteMemberus-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Performance Obligations And Commitments For The Gas-To-Power Site [Member]12true 3us-gaap_RestrictedCashAndCashEquivalentsItemsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Restricted Cash and Cash Equivalents Items [Line Items]13false 4us-gaap_RestrictedCashAndCashEquivalentsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse650000650USD$falsefalsefalse2truefalsefalse650000650USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Restricted cash14false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse8false USDtruefalse$c85_AsOf30Jun2013_SecuredLettersOfCreditMemberhttp://www.sec.gov/CIK0001023734instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseSecured Letters Of Credit [Member]us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisxbrldihttp://xbrl.org/2006/xbrldibpz_SecuredLettersOfCreditMemberus-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Secured Letters Of Credit [Member]15true 3us-gaap_RestrictedCashAndCashEquivalentsItemsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Restricted Cash and Cash Equivalents Items [Line Items]16false 4us-gaap_RestrictedCashAndCashEquivalentsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse250000250USD$falsefalsefalse2truefalsefalse259000259USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Restricted cash17false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse10false USDtruefalse$c87_AsOf31Dec2012_SeventyFiveMillionDollarSecuredDebtFacilityMemberhttp://www.sec.gov/CIK0001023734instant2012-12-31T00:00:000001-01-01T00:00:00falsefalse$75 Million Secured Debt Facility [Member]us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisxbrldihttp://xbrl.org/2006/xbrldibpz_SeventyFiveMillionDollarSecuredDebtFacilityMemberus-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0$75 Million Secured Debt Facility [Member]18true 3us-gaap_RestrictedCashAndCashEquivalentsItemsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Restricted Cash and Cash Equivalents Items [Line Items]19false 4us-gaap_RestrictedCashAndCashEquivalentsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse3500000035000USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Restricted cash20false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse11false USDtruefalse$c88_AsOf30Jun2013_FortyMillionDollarSecuredDebtFacilityMemberhttp://www.sec.gov/CIK0001023734instant2013-06-30T00:00:000001-01-01T00:00:00falsefalse$40 Million Secured Debt Facility [Member]us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisxbrldihttp://xbrl.org/2006/xbrldibpz_FortyMillionDollarSecuredDebtFacilityMemberus-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0$40 Million Secured Debt Facility [Member]21true 3us-gaap_RestrictedCashAndCashEquivalentsItemsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Restricted Cash and Cash Equivalents Items [Line Items]22false 4us-gaap_RestrictedCashAndCashEquivalentsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse47590004759USD$falsefalsefalse2truefalsefalse3272700032727USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Restricted cash23false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse13false USDtruefalse$c90_AsOf30Jun2013_UnsecuredPerformanceBondMemberhttp://www.sec.gov/CIK0001023734instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseUnsecured Performance Bond [Member]us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisxbrldihttp://xbrl.org/2006/xbrldibpz_UnsecuredPerformanceBondMemberus-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Unsecured Performance Bond [Member]24true 3us-gaap_RestrictedCashAndCashEquivalentsItemsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Restricted Cash and Cash Equivalents Items [Line Items]25false 4us-gaap_RestrictedCashAndCashEquivalentsus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00USD$falsetruefalse2truefalsefalse00USD$falsetruefalsexbrli:monetaryItemTypemonetaryThe carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Restricted cashfalseNote 9 - Restricted Cash and Performance Bonds (Details) - Restricted Cash (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://bpzenergy.com/role/RestrictedCashTable225