Inventories, Net and Significant Suppliers (Tables)

12 Months Ended

Dec. 31, 2016

Inventories, net were as follows:



	December 31,
(In thousands)	2016			2015
Raw materials	$	33,059		$	29,290
Components	15,046			12,228
Work in process	5,860			5,671
Finished goods	80,119			78,222
Reserve for excess and obsolete inventory	(4,205		)	(3,045		)
Inventories, net	$	129,879		$	122,366

Changes in the reserve for excess and obsolete inventory were as follows:



	Year Ended December 31,
(In thousands)	2016			2015			2014
Balance at beginning of period	$	3,045		$	2,539		$	2,714
Additions charged to costs and expenses ⁽¹⁾	3,464			3,070			3,181
Sell through⁽²⁾	(1,116		)	(1,108		)	(869		)
Write-offs/Foreign exchange effects	(1,188		)	(1,456		)	(2,487		)
Balance at end of period	$	4,205		$	3,045		$	2,539


⁽¹⁾	The additions charged to costs and expenses do not include inventory directly written-off that was scrapped during production totaling $0.3 million, $0.3 million, and $0.3 million for the years ended December 31, 2016, 2015, and 2014, respectively. These amounts are production waste and are not included in management’s reserve for excess and obsolete inventory.


⁽²⁾	These amounts represent the reversal of reserves associated with inventory items that were sold during the period.

Inventory purchases from this supplier were as follows:



	Year Ended December 31,
	2016				2015				2014
	$ (thousands)		% of Total Inventory Purchases		$ (thousands)		% of Total Inventory Purchases		$ (thousands)		% of Total Inventory Purchases
Related party supplier	$	6,350	1.8	%	$	8,550	2.5	%	$	9,188	3.2	%

Total accounts payable to this supplier were as follows: