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Note 12 - Major Customers
12 Months Ended
Dec. 31, 2013
Risks and Uncertainties [Abstract]  
Concentration Risk Disclosure [Text Block]

12.  Major Customers


The following table summarizes those customers with sales greater than 10% of the Company's total revenue or accounts receivable balances greater than 10% of the Company's total accounts receivable:


   

Revenue

 

Accounts Receivable, Net

   

Year Ended December 31,

 

As of December 31,

Customers

 

2013

 

2012

 

2011

 

2013

 

2012

A

 

32%

 

32%

 

27%

 

32%

 

34%

B

 

*

 

*

 

*

 

*

 

11%

C

 

10%

 

*

 

*

 

17%

 

*


* Represents less than 10%.