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Business Description, Basis of Presentation and Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Marketable securities recognized, other than temporary impairments, amount	$ 0	$ 0	$ 0
Value of advance replacement units	$ 21	75
Product return policy, number of days	180 days
Product return policy not to exceed net purchases during preceeding quarter, percent	15.00%
Advertising expenses	$ 836	728	$ 768
Valuation allowance	$ 1,404	$ 1,071
Minimum [Member]
Property and equipment estimated useful lives	3 years
Maximum [Member]
Property and equipment estimated useful lives	10 years

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- Definition

Inventory And Components Net Of Reserves.

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- Definition

Product return policy not to exceed net purchases during preceeding quarter, percent.

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- Definition

Product return policy, number of days.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

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- Definition

Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=75116654&loc=d3e31928-109318

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- Definition

This element represents the amount of loss recognized for other than temporary impairments (OTTI) of investments in debt and equity securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 5.M)
-URI http://asc.fasb.org/extlink&oid=65877573&loc=d3e87990-122713

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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