Note 5 - Real Estate Transaction - Allocation of Consideration (Details) - Property in Kirkland, Washington [Member] $ in Thousands	Sep. 30, 2019 USD ($)
Building	$ 30,078
Land	22,254
In-place leases	981
Total	$ 53,313

Carrying amount of real estate not separately disclosed.

No definition available.

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

+ References

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
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-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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