v3.4.0.3
SHORT-TERM BANK LOANS (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2014
Sep. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2012
Loan from bank A in Taiwan dated July 2014 [Member]              
Short-term Debt [Line Items]              
Amount outstanding       $ 15,000   $ 10,000  
Interest rate spread over LIBOR           0.80%  
Effective interest rate 1.63%       1.63%    
Loan from bank A in Taiwan dated July 2014 [Member] | First Tranche [Member]              
Short-term Debt [Line Items]              
Amount outstanding       10,000      
Loan from bank A in Taiwan dated July 2014 [Member] | Second Tranche [Member]              
Short-term Debt [Line Items]              
Amount outstanding       $ 5,000      
Loan from bank A in Taiwan dated January 2015 [Member]              
Short-term Debt [Line Items]              
Interest rate spread over LIBOR         0.80%    
Stated interest rate 1.63%       1.63%    
Loan from bank A in Taiwan dated January 2015 [Member] | Second Tranche [Member]              
Short-term Debt [Line Items]              
Amount outstanding         $ 5,000    
.0151         Jan. 28, 2016    
Loan from bank A in Taiwan dated January 2015 [Member] | First Tranche [Member]              
Short-term Debt [Line Items]              
Amount outstanding         $ 5,000    
.0151         Jan. 27, 2016    
Loan from bank A in Taiwan dated January 2015 [Member] | Third Tranche [Member]              
Short-term Debt [Line Items]              
Amount outstanding         $ 5,000    
.0151         Jan. 30, 2016    
Loan from bank A in Taiwan dated May 2015 [Member]              
Short-term Debt [Line Items]              
Amount outstanding         $ 15,000    
Interest rate spread over LIBOR         1.30%    
Stated interest rate 1.5178%       1.5178%    
.0151         Mar. 15, 2016    
Loan from bank A in Taiwan dated December 2015 [Member]              
Short-term Debt [Line Items]              
Amount outstanding $ 5,000            
Interest rate spread over LIBOR 1.30%            
Stated interest rate 1.9031%       1.9031%    
.0151 Mar. 29, 2016            
Loan from bank C in Taiwan dated July 2015 [Member]              
Short-term Debt [Line Items]              
Amount outstanding   $ 18,000          
Stated interest rate   1.40%          
.0151   Mar. 22, 2016          
Loan from bank C in Taiwan dated December 2015 [Member]              
Short-term Debt [Line Items]              
Amount outstanding $ 5,000            
Stated interest rate 1.50%       1.50%    
.0151 Jun. 28, 2016            
Loan from bank C in Hong Kong dated December 2012 [Member]              
Short-term Debt [Line Items]              
Amount outstanding             $ 8,500
Stated interest rate             1.84%
Loan from bank C in Hong Kong dated December 2012 [Member] | Minimum [Member]              
Short-term Debt [Line Items]              
Stated interest rate             1.34%
Loan from bank C in Hong Kong dated December 2012 [Member] | Maximum [Member]              
Short-term Debt [Line Items]              
Stated interest rate             1.82%
Loan from bank C in Hong Kong dated December 2014 [Member]              
Short-term Debt [Line Items]              
Amount outstanding     $ 11,500        
.0151     Feb. 29, 2016        
Loan from bank C in Hong Kong dated December 2014 [Member] | Minimum [Member]              
Short-term Debt [Line Items]              
Stated interest rate     1.31%     1.31%  
Loan from bank C in Hong Kong dated December 2014 [Member] | Maximum [Member]              
Short-term Debt [Line Items]              
Stated interest rate     1.82%     1.82%  
Loan from bank D in Hong Kong dated August 2015 [Member]              
Short-term Debt [Line Items]              
Amount outstanding   $ 3,000          
Interest rate spread over LIBOR   1.90%          
Stated interest rate 2.392%       2.392%    
.0151   Mar. 09, 2016