2.4.0.8034 - Disclosure - Note 11 - Derivative Financial Instruments (Tables)truefalsefalse1false falsefalsec4_From1Jan2013To30Jun2013http://www.sec.gov/CIK0001023734duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Derivative Instruments and Hedging Activities Disclosure [Abstract]2false 2us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<table style="TEXT-INDENT: 0px; WIDTH: 98%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 1%; FONT-SIZE: 10pt; MARGIN-RIGHT: 1%" id="TBL4897" border="0" cellspacing="0" cellpadding="0"> <tr id="TBL4897.finRow.1"> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.1.lead.D3">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.1.amt.D3" colspan="6"> Three Months Ended June 30, </td> <td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.1.trail.D3">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.1.lead.D5">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.1.amt.D5" colspan="6"> Six Months Ended June 30, </td> <td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.1.trail.D5">   </td> </tr> <tr id="TBL4897.finRow.2"> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.2.lead.D2">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.2.amt.D2" colspan="2"> 2013 </td> <td style="TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.2.trail.D2">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.2.lead.D3">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.2.amt.D3" colspan="2"> 2012 </td> <td style="TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.2.trail.D3">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.2.lead.D4">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.2.amt.D4" colspan="2"> 2013 </td> <td style="TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.2.trail.D4">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.2.lead.D5">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.2.amt.D5" colspan="2"> 2012 </td> <td style="TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.2.trail.D5">   </td> </tr> <tr id="TBL4897.finRow.3"> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.3.lead.D3">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.3.amt.D3" colspan="6"> (in thousands) </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.3.trail.D3">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.3.lead.D5">   </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.3.amt.D5" colspan="6"> (in thousands) </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4897.finRow.3.trail.D5">   </td> </tr> <tr id="TBL4897.finRow.4"> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 52%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom"> Realized derivative gain (loss) </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.lead.2">   </td> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.symb.2"> $ </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.amt.2"> (497 </td> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.trail.2" nowrap="nowrap"> ) </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.lead.3">   </td> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.symb.3"> $ </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.amt.3"> - </td> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.trail.3" nowrap="nowrap">   </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.lead.4">   </td> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.symb.4"> $ </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.amt.4"> (1,897 </td> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.trail.4" nowrap="nowrap"> ) </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.lead.5">   </td> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.symb.5"> $ </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.amt.5"> - </td> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.4.trail.5" nowrap="nowrap">   </td> </tr> <tr id="TBL4897.finRow.5"> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #ffffff; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom"> Unrealized derivative gain (loss) </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.lead.2">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: left; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.symb.2">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.amt.2"> 1,774 </td> <td style="TEXT-ALIGN: left; PADDING-BOTTOM: 1px; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.trail.2" nowrap="nowrap">   </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.lead.3">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: left; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.symb.3">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.amt.3"> 8,407 </td> <td style="TEXT-ALIGN: left; PADDING-BOTTOM: 1px; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.trail.3" nowrap="nowrap">   </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.lead.4">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: left; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.symb.4">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.amt.4"> 2,626 </td> <td style="TEXT-ALIGN: left; PADDING-BOTTOM: 1px; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.trail.4" nowrap="nowrap">   </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.lead.5">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: left; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.symb.5">   </td> <td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.amt.5"> 2,039 </td> <td style="TEXT-ALIGN: left; PADDING-BOTTOM: 1px; BACKGROUND-COLOR: #ffffff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.5.trail.5" nowrap="nowrap">   </td> </tr> <tr id="TBL4897.finRow.6"> <td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; PADDING-LEFT: 9pt; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom"> Total gain (loss) on derivative financial instruments </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.lead.2">   </td> <td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.symb.2"> $ </td> <td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.amt.2"> 1,277 </td> <td style="TEXT-ALIGN: left; PADDING-BOTTOM: 3px; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.trail.2" nowrap="nowrap">   </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.lead.3">   </td> <td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.symb.3"> $ </td> <td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.amt.3"> 8,407 </td> <td style="TEXT-ALIGN: left; PADDING-BOTTOM: 3px; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.trail.3" nowrap="nowrap">   </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.lead.4">   </td> <td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.symb.4"> $ </td> <td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.amt.4"> 729 </td> <td style="TEXT-ALIGN: left; PADDING-BOTTOM: 3px; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.trail.4" nowrap="nowrap">   </td> <td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.lead.5">   </td> <td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.symb.5"> $ </td> <td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 9%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.amt.5"> 2,039 </td> <td style="TEXT-ALIGN: left; PADDING-BOTTOM: 3px; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4897.finRow.6.trail.5" nowrap="nowrap">   </td> </tr> </table>falsefalsefalsenonnum:textBlockItemTypenaTabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 false0Derivative Instruments, Gain (Loss) [Table Text Block]falseNote 11 - Derivative Financial Instruments (Tables)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://bpzenergy.com/role/Note11DerivativeFinancialInstrumentsTables12