2.4.0.8031 - Disclosure - Note 8 - Investment in Ecuador Property (Tables)truefalsefalse1false
falsefalsec4_From1Jan2013To30Jun2013http://www.sec.gov/CIK0001023734duration2013-01-01T00:00:002013-06-30T00:00:001true
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2bpz_ScheduleOfIncomeExpenseFromInvestmentPropertyTableTextBlockbpz_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<table style="TEXT-INDENT: 0px; WIDTH: 90%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 5%; FONT-SIZE: 10pt; MARGIN-RIGHT: 5%" id="TBL4717S1" border="0" cellspacing="0" cellpadding="0">
<tr id="TBL4717S1.finRow.1">
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.1.lead.D3">
<b> </b>
</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="TBL4717S1.finRow.1.amt.D3" colspan="6">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b></b></font></b>
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4684">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>Three
Months Ended</b></font></font></b>
</p>
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4686">
<b>June 30,</b>
</p>
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.1.trail.D3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.1.lead.D5">
<b> </b>
</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="TBL4717S1.finRow.1.amt.D5" colspan="6">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b></b></font></b>
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4685">
<font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>Six
Months Ended</b></font></font>
</p>
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4687">
June 30,
</p>
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.1.trail.D5">
<b> </b>
</td>
</tr>
<tr id="TBL4717S1.finRow.2">
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.2.lead.D2">
<b> </b>
</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="TBL4717S1.finRow.2.amt.D2" colspan="2">
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4688">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>2013</b></font></b>
</p>
</td>
<td style="TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.2.trail.D2">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.2.lead.D3">
<b> </b>
</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="TBL4717S1.finRow.2.amt.D3" colspan="2">
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4689">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>2012</b></font></b>
</p>
</td>
<td style="TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.2.trail.D3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.2.lead.D4">
<b> </b>
</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="TBL4717S1.finRow.2.amt.D4" colspan="2">
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4690">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>2013</b></font></b>
</p>
</td>
<td style="TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.2.trail.D4">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.2.lead.D5">
<b> </b>
</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="TBL4717S1.finRow.2.amt.D5" colspan="2">
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4691">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>2012</b></font></b>
</p>
</td>
<td style="TEXT-ALIGN: center; PADDING-BOTTOM: 1px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.2.trail.D5">
<b> </b>
</td>
</tr>
<tr id="TBL4717S1.finRow.3">
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.3.lead.D5">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.3.amt.D5" colspan="14">
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4692">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>(in
thousands)</b></font></b>
</p>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.3.trail.D5">
<b> </b>
</td>
</tr>
<tr id="TBL4717S1.finRow.4">
<td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 44%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom">
<p style="TEXT-ALIGN: left; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4693">
<font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">Distributions
received from investment in Ecuador property</font>
</p>
</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="TBL4717S1.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="TBL4717S1.finRow.4.symb.2">
$
</td>
<td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.4.amt.2">
250
</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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.4.symb.3">
$
</td>
<td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.4.symb.4">
$
</td>
<td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.4.amt.4">
250
</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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.4.symb.5">
$
</td>
<td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.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="TBL4717S1.finRow.4.trail.5" nowrap="nowrap">
 
</td>
</tr>
<tr id="TBL4717S1.finRow.5">
<td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #ffffff; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom">
<p style="TEXT-ALIGN: left; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4698">
<font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">Amortization
of investment in Ecuador property</font>
</p>
</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="TBL4717S1.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="TBL4717S1.finRow.5.symb.2">
 
</td>
<td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.5.amt.2">
(34
</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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.5.symb.3">
 
</td>
<td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.5.amt.3">
(47
</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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.5.symb.4">
 
</td>
<td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.5.amt.4">
(81
</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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.5.symb.5">
 
</td>
<td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: right; BACKGROUND-COLOR: #ffffff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.5.amt.5">
(94
</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="TBL4717S1.finRow.5.trail.5" nowrap="nowrap">
)
</td>
</tr>
<tr id="TBL4717S1.finRow.6">
<td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom">
<p style="TEXT-ALIGN: left; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4703">
<font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">Income
(loss) from investment in Ecuador property, net</font>
</p>
</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="TBL4717S1.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="TBL4717S1.finRow.6.symb.2">
$
</td>
<td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.6.amt.2">
216
</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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.6.symb.3">
$
</td>
<td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.6.amt.3">
(47
</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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.6.symb.4">
$
</td>
<td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.6.amt.4">
169
</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="TBL4717S1.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="TBL4717S1.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="TBL4717S1.finRow.6.symb.5">
$
</td>
<td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717S1.finRow.6.amt.5">
(94
</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="TBL4717S1.finRow.6.trail.5" nowrap="nowrap">
)
</td>
</tr>
</table>falsefalsefalse | nonnum:textBlockItemTypenaSchedule of income/(expense) from investment property.No definition available.false0
3false
2bpz_ScheduleOfInvestmentPropertiesHeldTableTextBlockbpz_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<table style="TEXT-INDENT: 0px; WIDTH: 90%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 5%; FONT-SIZE: 10pt; MARGIN-RIGHT: 5%" id="TBL4717" border="0" cellspacing="0" cellpadding="0">
<tr id="TBL4717.finRow.3">
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.lead.B2">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.symb.B2">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.amt.B2">
<b> </b>
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: center; PADDING-BOTTOM: 0px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.trail.B2">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.lead.B3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.symb.B3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.amt.B3">
<b> </b>
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: center; PADDING-BOTTOM: 0px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.trail.B3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.lead.D4">
<b> </b>
</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="TBL4717.finRow.3.amt.D4" colspan="2">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b></b></font></b>
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4708">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>June
30,</b></font></font></b>
</p>
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4710">
<b>2013</b>
</p>
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: center; PADDING-BOTTOM: 0px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.trail.D4">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.lead.D5">
<b> </b>
</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="TBL4717.finRow.3.amt.D5" colspan="2">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b></b></font></b>
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4709">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>December
31,</b></font></font></b>
</p>
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4711">
<b>2012</b>
</p>
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: center; PADDING-BOTTOM: 0px; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.3.trail.D5">
<b> </b>
</td>
</tr>
<tr id="TBL4717.finRow.4">
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.lead.B2">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.symb.B2">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.amt.B2">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.trail.B2">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.lead.B3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.symb.B3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.amt.B3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.trail.B3">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.lead.D5">
<b> </b>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.4.amt.D5" colspan="6">
<p style="TEXT-ALIGN: center; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4712">
<b><font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt"><b>(in
thousands)</b></font></b>
</p>
</td>
<td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL4717.finRow.4.trail.D5">
<b> </b>
</td>
</tr>
<tr id="TBL4717.finRow.5">
<td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 44%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom">
<p style="TEXT-ALIGN: left; LINE-HEIGHT: 1.25; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" id="PARA4713">
<font style="FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt">Investment
in Ecuador property, net</font>
</p>
</td>
<td style="BACKGROUND-COLOR: #cceeff; WIDTH: 1%; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.lead.2">
 
</td>
<td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.symb.2">
 
</td>
<td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.amt.2">
 
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: left; PADDING-BOTTOM: 0px; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; MARGIN-LEFT: 0pt; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.trail.2" nowrap="nowrap">
 
</td>
<td style="BACKGROUND-COLOR: #cceeff; WIDTH: 1%; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.lead.3">
 
</td>
<td style="TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.symb.3">
 
</td>
<td style="TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.amt.3">
 
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: left; PADDING-BOTTOM: 0px; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; MARGIN-LEFT: 0pt; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.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="TBL4717.finRow.5.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="TBL4717.finRow.5.symb.4">
$
</td>
<td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.amt.4">
551
</td>
<td style="BORDER-BOTTOM: medium none; TEXT-ALIGN: left; PADDING-BOTTOM: 0px; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.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="TBL4717.finRow.5.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="TBL4717.finRow.5.symb.5">
$
</td>
<td style="BORDER-BOTTOM: #000000 3px double; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 11%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.amt.5">
632
</td>
<td style="TEXT-ALIGN: left; PADDING-BOTTOM: 0px; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL4717.finRow.5.trail.5" nowrap="nowrap">
 
</td>
</tr>
</table>falsefalsefalse | nonnum:textBlockItemTypenaSchedule of investment properties held.No definition available.false0
falseNote 8 - Investment in Ecuador Property (Tables)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://bpzenergy.com/role/Note8InvestmentinEcuadorPropertyTables13