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Inventories (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Inventory [Line Items]
Distributor channel inventories	$ 1,540		$ 1,698
Losses incurred on valuation of inventory and write-off of obsolete inventory	47	$ 416
Current:
Raw materials	3,071		3,056
Finished goods	12,338		11,408
Inventoryincludingdistributorchannelinventories,net	15,409		14,464
Long-term:
Raw materials	70		59
Finished Goods	620		817
Inventory, Noncurrent	$ 690		$ 876

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Sum of the carrying amounts as of the balance sheet date of deferred costs capitalized at the end of the reporting period that are expected to be charged against earnings within one year or the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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