2.4.0.8024 - Disclosure - Note 7 - Debt (Tables)truefalsefalse1false falsefalsec2_From1Jan2013To30Jun2013http://www.sec.gov/CIK0001121484duration2013-01-01T00:00:002013-06-30T00:00:001true 1ois_DebtDisclosureTextBlockAbstractois_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Debt Disclosure [Text Block]2false 2us-gaap_ScheduleOfDebtInstrumentsTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<table style="WIDTH: 100%; FONT-FAMILY: Times New Roman, Times, serif; FONT-SIZE: 10pt" id="TBL6240" border="0" cellspacing="0" cellpadding="0"> <tr id="TBL6240.finRow.1"> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom"> <b>&#160;</b> </td> <td style="TEXT-ALIGN: center; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL6240.finRow.1.lead.D2"> <b>&#160;</b> </td> <td style="BORDER-BOTTOM: #000000 1px solid; 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MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL6298.finRow.4.symb.2"> $ </td> <td style="BORDER-BOTTOM: #000000 1px; TEXT-ALIGN: right; BACKGROUND-COLOR: #cceeff; WIDTH: 13%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL6298.finRow.4.amt.2"> -- </td> <td style="BORDER-BOTTOM: #000000 1px; 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="TBL6298.finRow.4.trail.2" nowrap="nowrap"> &#160; </td> <td style="BORDER-BOTTOM: #000000 1px; TEXT-ALIGN: center; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom" id="TBL6298.finRow.4.lead.3"> &#160; </td> <td style="BORDER-BOTTOM: #000000 1px; TEXT-ALIGN: left; BACKGROUND-COLOR: #cceeff; WIDTH: 1%; FONT-FAMILY: Times New Roman, Times, serif; MARGIN-LEFT: 0pt; FONT-SIZE: 10pt; 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