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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2013
Notes to Financial Statements  
Schedule of Fair Value Assets Measured On Recurring Basis
The following table presents the Company’s assets and liabilities that are measured at fair value on a recurring basis at December 31, 2013:
 
 
 
 
Fair Value Measurements at Reporting Date Using
 
 
Total
 
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
 
Significant other
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Cash equivalents:
 
 
 
 
 
 
 
 
Money market funds and commercial paper
 
$
8,486,633

 
$
8,486,633

 
$
—

 
$
—

Total cash equivalents
 
8,486,633

 
8,486,633

 
—

 
—

Marketable securities:
 
 

 
 

 
 

 
 

Corporate debt and government securities
 
8,073,108

 
—

 
8,073,108

 
—

Total marketable securities
 
8,073,108

 
—

 
8,073,108

 
—

Derivative liabilities:
 
 
 
 
 
 
 
 
Derivative Instruments
 
159,134

 
—

 
—

 
159,134

Total derivative liabilities
 
159,134

 
—

 
—

 
159,134

 
 
 
 
 
 
 
 
 
Total assets and liabilities measured at fair value
 
$
16,718,875

 
$
8,486,633

 
$
8,073,108

 
$
159,134


The following table presents the Company’s assets that are measured at fair value on a recurring basis at December 31, 2012: 
 
 
 
 
Fair Value Measurements at Reporting Date Using
 
 
Total
 
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
 
Significant other
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
Cash equivalents:
 
 
 
 
 
 
 
 
Money market funds
 
$
4,285,309

 
$
4,285,309

 
$
—

 
$
—

Total cash equivalents
 
4,285,309

 
4,285,309

 
—

 
—

Marketable securities:
 
 

 
 

 
 

 
 

Corporate debt and government securities
 
10,530,942

 
—

 
10,530,942

 
—

Total marketable securities
 
10,530,942

 
—

 
10,530,942

 
—

 
 
 
 
 
 
 
 
 
Total assets measured at fair value
 
$
14,816,251

 
$
4,285,309

 
$
10,530,942

 
$
—

Fair Value Measurements Using Significant Unobservable Inputs
The following table presents the Company’s assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as of each of the years ended December 31, 2013 and 2012: 
 
 
Fair Value Measurements Using
Significant Unobservable Inputs
(Level 3)
 
 
December 31, 2013
 
December 31, 2012
Beginning Balance
 
$
—

 
$
611,082

Total unrealized gains in accumulated other comprehensive loss
 
—

 
88,918

Securities called by issuer
 
—

 
(700,000
)
Issuance of Derivative Instruments
 
170,337

 
—

Total gains recognized in earnings
 
(11,203
)
 
—

Ending Balance
 
$
159,134

 
$
—