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Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2016
Fair Value of Financial Instruments [Abstract]  
Fair Value Disclosures [Text Block]
(5)
Fair Value of Financial Instruments
                    
The following tables present our financial assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value.
                   
 
 
 
 
Fair Value Measurements at December 31, 2016
 
 
 
 
 
Quoted Prices in
 
Significant Other
 
Significant
 
 
 
 
 
Active Markets for
 
Observable
 
Unobservable
 
 
 
 
 
Identical Assets
 
Inputs
 
Inputs
 
 
 
Total
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term investments
 
$
94,202
 
$
 
$
94,202
 
$
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
Foreign currency forward exchange contracts accounted for using hedge accounting
 
$
181
 
$
 
$
181
 
$
 
Foreign currency forward exchange contracts not accounted for using hedge accounting
 
 
418
 
 
 
 
418
 
 
 
Interest rate swap
 
 
908
 
 
 
 
908
 
 
 
 
 
$
1,507
 
$
 
$
1,507
 
$
 
                   
 
 
 
 
Fair Value Measurements at December 31, 2015
 
 
 
 
 
Quoted Prices in
 
Significant Other
 
Significant
 
 
 
 
 
Active Markets for
 
Observable
 
Unobservable
 
 
 
 
 
Identical Assets
 
Inputs
 
Inputs
 
 
 
Total
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term investments
 
$
82,847
 
$
 
$
82,847
 
$
 
Foreign currency forward exchange contracts not accounted for using hedge accounting
 
 
123
 
 
 
 
123
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
$
82,970
 
$
 
$
82,970
 
$
 
Liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest rate swaps
 
$
1,026
 
$
 
$
1,026
 
$
 
                    
The carrying amount of cash and cash equivalents including money market funds, short-term investments, accounts receivable, other receivables, accounts payable and accrued expenses approximates fair value due to the short terms to maturity of these instruments. The carrying amount of loans payable approximates fair value as the variable interest rates on the Company’s indebtedness approximate current market rates.
                    
Foreign currency forward exchange contracts are valued based on quotations from financial institutions and the value of interest rate swaps are the discounted net present value of the swaps using third party quotes from financial institutions.