2. Inventories

The components of inventory were as follows (in thousands):

Finished goods include consigned inventory of approximately $0.5 million and $5.6 million as of December 31, 2017 and 2016, respectively. As of December 31, 2017, inventories totaling $1.2 million and $1.1 million were classified as current and long-term, respectively (all inventory was classified as current as of December 31, 2016). Inventories classified as current represent the carrying value of inventories as of the date indicated, that management estimates will be sold during the following year. The above inventory totals are recorded net of a provision for slow moving inventory of approximately $9.4 million and $4.8 million at December 31, 2017 and 2016, respectively. Included in cost of goods sold for the years ended December 31, 2017 and 2016 is approximately $4.6 million and $1.2 million, respectively, of cost relating to the provision for slow moving.