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Cash, Cash Equivalents and Investments (Tables)
 12 Months Ended
Dec. 31, 2013
Cash, Cash Equivalents and Investments [Abstract]  
Cash, cash equivalents and investments
Our cash, cash equivalents and investments are classified as follows (in thousands):
 
 
 
December 31, 2013
  
December 31, 2012
 
 
 
Amortized
Cost
  
Gross
Unrealized
Gain
  
Gross
Unrealized
(Loss)
  
Fair
Value
  
Amortized
Cost
  
Gross
Unrealized
Gain
  
Gross
Unrealized
(Loss)
  
Fair
Value
 
Classified as:
 
  
  
  
  
  
  
  
 
Cash
 
$
24,852
  
$
—
  
$
—
  
$
24,852
  
$
26,250
  
$
—
  
$
—
  
$
26,250
 
Cash equivalents:
                                
Money market fund
  
109
   
—
   
—
   
109
   
4,384
   
—
   
—
   
4,384
 
Total cash and cash equivalents
  
24,961
   
—
   
—
   
24,961
   
30,634
   
—
   
—
   
30,634
 
Investments(available for sale):
                                
Certificates of Deposit
  
6,320
   
2
   
(4
)
  
6,318
   
6,638
   
9
   
(2
)
  
6,645
 
Corporate bonds
  
14,276
   
8
   
(6
)
  
14,278
   
12,872
   
7
   
(63
)
  
12,816
 
Corporate equity security
  
125
   
1,923
   
—
   
2,048
   
—
   
—
   
—
   
—
 
Total investments
  
20,721
   
1,933
   
(10
)
  
22,644
   
19,510
   
16
   
(65
)
  
19,461
 
Total cash, cash equivalents and investments
 
$
45,682
  
$
1,933
  
$
(10
)
 
$
47,605
  
$
50,144
  
$
16
  
$
(65
)
 
$
50,095
 
Contractual maturities on investments:
                                
Due within 1 year
 
$
10,569
          
$
12,499
  
$
10,288
          
$
10,270
 
Due after 1 through 5 years
  
10,152
           
10,145
   
9,222
           
9,191
 
 
 
$
20,721
          
$
22,644
  
$
19,510
          
$
19,461
 
Fair value and gross unrealized losses related to available-for-sale securities
The following table summarizes the fair value and gross unrealized losses related to available-for-sale securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of December 31, 2013 (in thousands):
 
 
In Loss Position
< 12 months
In Loss Position
> 12 months
Total In
Loss Position
 
Fair
Value
Gross
Unrealized
(Loss)
Fair
Value
Gross
Unrealized
(Loss)
Fair
Value
Gross
Unrealized
(Loss)
Investments:
Certificates of deposit
 
$
3,425
  
$
(4
)
 
$
720
  
$
(0
)
 
$
4,145
  
$
(4
)
Corporate bonds
  
4,473
   
(5
)  
3,711
   
(1
)  
8,184
   
(6
)
Total in loss position
 
$
7,898
  
$
(9
)
 
$
4,431
  
$
(1
)
 
$
12,329
  
$
(10
)
 
The following table summarizes the fair value and gross unrealized losses related to available-for-sale securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of December 31, 2012 (in thousands):
 
 
In Loss Position
< 12 months
In Loss Position
> 12 months
Total In
Loss Position
 
Fair
Value
Gross
Unrealized
(Loss)
Fair
Value
Gross
Unrealized
(Loss)
Fair
Value
Gross
Unrealized
(Loss)
Investments:
Certificates of deposit
 
$
1,877
  
$
(1
)
 
$
199
  
$
(1
)
 
$
2,076
  
$
(2
)
Corporate bonds
  
6,446
   
(40
)  
1,502
   
(23
)  
7,948
   
(63
)
Total in loss position
 
$
8,323
  
$
(41
)
 
$
1,701
  
$
(24
)
 
$
10,024
  
$
(65
)
Summary of financial assets and liabilities measured at fair value on a recurring basis
The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis in accordance with ASC 820 as of December 31, 2013 (in thousands):
 
 
 
Balance as of
December 31, 2013
  
Quoted Prices in
Active Markets of
Identical Assets
(Level 1)
  
Significant Other
Observable Inputs
(Level 2)
 
Assets:
 
  
  
 
Cash equivalents and investments:
 
  
  
 
Money market fund
 
$
109
  
$
109
  
$
—
 
Certificates of deposit
  
6,318
   
—
   
6,318
 
Corporate bonds
  
14,278
   
—
   
14,278
 
Corporate equity securities
  
2,048
   
—
   
2,048
 
Total
 
$
22,753
  
$
109
  
$
22,644
 
Liabilities
 
$
—
  
$
—
  
$
—
 
 
The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis in accordance with ASC 820 as of December 31, 2012 (in thousands):
 
 
 
Balance as of
December 31, 2012
  
Quoted Prices in
Active Markets of
Identical Assets
(Level 1)
  
Significant Other
Observable Inputs
(Level 2)
 
Assets:
 
  
  
 
Cash equivalents and investments:
 
  
  
 
Money market fund
 
$
4,384
  
$
4,384
  
$
—
 
Certificates of deposit
  
6,645
   
—
   
6,645
 
Corporate bonds
  
12,816
   
—
   
12,816
 
Total
 
$
23,845
  
$
4,384
  
$
19,461
 
Liabilities
 
$
—
  
$
—
  
$
—