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Note 3 - Operating Property Activities - Acquisition of Operating Properties (Details) ft² in Thousands, $ in Thousands | 3 Months Ended
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Mar. 31, 2019 USD ($) ft²
Purchase Price Cash | $ | $ 31,269 | [1]
Purchase Price GLA (Square Foot) | ft² | 125 | [2]
Bell Camino Out-parcel [Member] |  |
Purchase Price Cash | $ | $ 5,678 | [1]
Purchase Price GLA (Square Foot) | ft² | 45 | [2]
Gateway at Donner Pass Out-parcel [Member] |  |
Purchase Price Cash | $ | $ 13,527 | [1]
Purchase Price GLA (Square Foot) | ft² | 40 | [2]
Rancho Penasquitos Out-parcel [Member] |  |
Purchase Price Cash | $ | $ 12,064 | [1]
Purchase Price GLA (Square Foot) | ft² | 40 | [2]
[1] | The Company utilized an aggregate $31.0 million associated with Internal Revenue Code 1031 sales proceeds.
[2] | Gross leasable area ("GLA")

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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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