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Note 6 - Leases and Deferred Rent (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) ft² a	Dec. 31, 2017 USD ($)
Operating Leases, Rent Expense, Total | $	$ 1,053	$ 999
Amortization of Deferred Charges, Total | $	$ 12	$ 44
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 | a	3,068
Facility in Chennai, India [Member]
Area of Real Estate Property | a	6,175
Warehouse in Salt Lake City, Utah [Member]
Area of Real Estate Property	40,000

X

- Definition

The amount of amortization of deferred charges applied against earnings during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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- Definition

Area of a real estate property.

+ References

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X

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

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- 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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