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Note 7 - Leases and Deferred Rent (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) ft²	Mar. 31, 2018 USD ($)
Operating Lease, Expense | $	$ 171	$ 246
Facility in Gainesville [Member]
Area of Real Estate Property	5,000
Lessee, Operating Lease, Renewal Term	10 years
Facility in Salt Lake City [Member]
Area of Real Estate Property	21,443
Lessee, Operating Lease, Renewal Term	5 years
Warehouse in Shenzhen, China [Member]
Area of Real Estate Property	10,700
Facility in Austin, Texas [Member[
Area of Real Estate Property	7,070
Facility in Zaragoza, Spain [Member]
Area of Real Estate Property	3,068
Facility in Chennai, India [Member]
Area of Real Estate Property	6,175
Warehouse in Salt Lake City, Utah [Member]
Area of Real Estate Property	40,000

X

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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X

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

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X

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918638-209977

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