VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Valuation and Qualifying Accounts Disclosure [Line Items]
BEGINNING BALANCE	$ 2,257	$ 2,384	$ 2,293
Add - Additions charged to earnings	3,366	3,435	3,539
Deduct - Charges for purposes for which reserves were established	(2,919)	(3,562)	(3,448)
Deduct - Adjustment to reserve	(188)
ENDING BALANCE	2,516	2,257	2,384
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
BEGINNING BALANCE	1,176	1,227	1,233
Add - Additions charged to earnings	76	235	240
Deduct - Charges for purposes for which reserves were established	(90)	(286)	(246)
Deduct - Adjustment to reserve	(188)
ENDING BALANCE	974	1,176	1,227
Sales Returns and Allowances [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
BEGINNING BALANCE	1,081	1,157	1,060
Add - Additions charged to earnings	3,290	3,200	3,299
Deduct - Charges for purposes for which reserves were established	(2,829)	(3,276)	(3,202)
Deduct - Adjustment to reserve	0
ENDING BALANCE	$ 1,542	$ 1,081	$ 1,157

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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