Note 6 - Fixed Assets - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment (gross)	$ 6,642	$ 5,838
Less - accumulated depreciation	(2,698)	(1,716)
Property and equipment, net	3,944	4,122
Machinery and Equipment [Member]
Property, Plant and Equipment (gross)	2,992	2,516
Leasehold Improvements [Member]
Property, Plant and Equipment (gross)	1,734	1,734
Computer Equipment [Member]
Property, Plant and Equipment (gross)	721	714
Furniture and Fixtures [Member]
Property, Plant and Equipment (gross)	878	874
Construction in Progress [Member]
Property, Plant and Equipment (gross)	$ 317

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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