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Note 12 - Fair Value Measurements (Details) (USD $) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Note 12 - Fair Value Measurements (Details) [Line Items] |  |  |  |  |
Marketable Securities | $ 71,009,000 | [1] |  | $ 36,541,000 | [1]
Impairment of Real Estate | 81,500,000 |  | 34,600,000 |  |
Fair Value Inputs, Cap Rate | 6.00% |  |  |  |
Fair Value Inputs, Discount Rate | 9.50% |  |  |  |
Cost-method Investments [Member] |  |  |  |  |
Note 12 - Fair Value Measurements (Details) [Line Items] |  |  |  |  |
Impairment of Real Estate | 7,800,000 |  |  |  |
Fair Value, Estimate Not Practicable, Carrying (Reported) Amount [Member] |  |  |  |  |
Note 12 - Fair Value Measurements (Details) [Line Items] |  |  |  |  |
Impairment of Real Estate | 73,700,000 |  |  |  |
Discontinued Operations [Member] |  |  |  |  |
Note 12 - Fair Value Measurements (Details) [Line Items] |  |  |  |  |
Impairment of Real Estate | 45,800,000 |  | 34,200,000 |  |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |
Note 12 - Fair Value Measurements (Details) [Line Items] |  |  |  |  |
Marketable Securities | 68,000,000 |  |  | 33,400,000 |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Note 12 - Fair Value Measurements (Details) [Line Items] |  |  |  |  |
Marketable Securities | $ 3,300,000 |  |  | $ 3,400,000 |
[1] | As of June 30, 2013 and December 31, 2012, the Company determined that $68.0 million and $33.4 million, respectively, of the marketable securities estimated fair value were classified within Level 1 of the fair value hierarchy and the remaining $3.3 million and $3.4 million, respectively, were classified within Level 3 of the fair value hierarchy.

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- Definition Ratio of the net operating income produced by an asset and its capital cost (original prices paid to buy the asset), used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
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- Definition Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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