13. Commitments and Contingencies (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Commitments And Contingencies Details Narrative Abstract
Royalty Commitment	$ 16	$ 136
Purchase commitment of inventory	$ 11,887

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

No definition available.