VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Valuation and Qualifying Accounts Disclosure [Line Items]
BEGINNING BALANCE	$ 2,293	$ 2,419	$ 2,359
Add - Additions charged to earnings	3,539	3,106	3,129
Deduct - Charges for purposes for which reserves were established	(3,448)	(3,232)	(3,069)
ENDING BALANCE	2,384	2,293	2,419
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
BEGINNING BALANCE	1,233	1,271	1,415
Add - Additions charged to earnings	240	132	175
Deduct - Charges for purposes for which reserves were established	(246)	(170)	(319)
ENDING BALANCE	1,227	1,233	1,271
Sales Returns and Allowances [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
BEGINNING BALANCE	1,060	1,148	944
Add - Additions charged to earnings	3,299	2,974	2,954
Deduct - Charges for purposes for which reserves were established	(3,202)	(3,062)	(2,750)
ENDING BALANCE	$ 1,157	$ 1,060	$ 1,148

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

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

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Total of the deductions in a given period to 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, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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