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Note 11 - Mortgages and Other Financing Receivables (Detail) - Performing and Non-performing Loans (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Mortgages Receivables - Number of Loans | 28 |
Mortgages Receivables - Amount (in Dollars) | $ 70,704 | $ 102,972
Performing Financing Receivable [Member] |  |
Mortgages Receivables - Number of Loans | 24 |
Mortgages Receivables - Amount (in Dollars) | 50,802 |
Nonperforming Financing Receivable [Member] |  |
Mortgages Receivables - Number of Loans | 4 |
Mortgages Receivables - Amount (in Dollars) | $ 19,902 |

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- Definition The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 60 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(c)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph c -Article 7 + Details
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Balance Type: | debit
Period Type: | instant

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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant