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Note 6 - Senior Notes, Credit Facilities and Capital Leases (Tables) | 12 Months Ended
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Dec. 31, 2013
Debt Disclosure [Abstract] |
Schedule of Line of Credit Facilities [Table Text Block] |
| Previous Facility |  | New Facility
Interest rates: |  |  |  |  |  |  |
Spread over the London Interbank Offer Rate | 3.00 | - | 4.50% |  | 2.25 | - | 3.25%
Spread over alternative base rate | 2.00 | - | 3.50% |  | 1.25 | - | 2.25%
Standby fee per annum on undrawn amounts | 0.825 | - | 1.05% |  |  | 0.50% |
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block] |
Twelve-month period ending December 31, |  |  |  |
2014 |  | $ | 9,011 |
2015 |  |  | 7,887 |
2016 |  |  | 5,201 |
2017 |  |  | 1,734 |
Total |  |  | 23,833 |
Less: imputed interest |  |  | (1,093 | )
Net capital lease obligation |  | $ | 22,740 |

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- Definition Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: 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(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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