INVENTORIES

3 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

INVENTORIES

4.  INVENTORIES

The components of inventories are summarized below:

	March 31,			December 31,
	2017			2016
Raw materials	$	10,855		$	10,175
Work in process		7,912			6,535
Finished goods		11,438			9,826
Provision for excess and obsolete inventory		(377	)		(389	)
Total inventories	$	29,828		$	26,147

Included in raw materials and finished goods at March 31, 2017 and December 31, 2016 are goods in transit of approximately $3.1 million.

At March 31, 2017 and December 31, 2016, raw materials not pledged to our secured creditor were used as collateral to secure short term borrowings under a product financing agreement amounting to $3.0 million and $4.0 million, respectively.