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Organization and Summary of Significant Accounting Policies (Details Narrative)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
USD ($)
Number
shares
Dec. 31, 2014
USD ($)
shares
Dec. 31, 2013
USD ($)
shares
Dec. 31, 2012
USD ($)
Options to purchase common stock | shares 643,738 476,473 478,458  
Allowance for doubtful accounts $ 132 $ 139 $ 148 $ 213
Reserve for returns and allowances 322 422    
Inventory valuation reserves 4,829 4,478    
Depreciation expense 1,162 1,186 $ 1,245  
Goodwill $ 14,866 $ 17,520    
Percentage of goodwill 9.30%      
Estimated useful lives, intagible assets 6 years 7 months 6 days      
Number of operating segments | Number 1      
Number of reportable segments | Number 1      
Description of customer credit risk
No single customer accounted for 10% or more of the Company’s sales.
No single customer accounted for 10% or more of the Company’s sales.
No single customer accounted for 10% or more of the Company’s sales.
  
Advertising expenses $ 350 $ 284 $ 333  
Customer Relationships [Member] | Minimum [Member]        
Estimated useful lives, intagible assets 6 years      
Customer Relationships [Member] | Maximum [Member]        
Estimated useful lives, intagible assets 7 years      
Non-compete Agreements [Member]        
Estimated useful lives, intagible assets 1 year