Note 5 - Property and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, plant and equipment gross	$ 1,607	$ 1,357
Less: Accumulated depreciation and amortization	(881)	(1,035)
Property and equipment, net of accumulated depreciation	726	322
Computer Equipment [Member]
Property, plant and equipment gross	691	987
Office Furniture and Equipment [Member]
Property, plant and equipment gross	146	147
Leasehold Improvements [Member]
Property, plant and equipment gross	187	187
Software and Software Development Costs [Member]
Property, plant and equipment gross	$ 583	$ 36

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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