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Fair Value Measurements (Tables)
 3 Months Ended
Mar. 31, 2019
Fair Value Disclosures [Abstract]  
Schedule of Assets Measured at Fair Value on Recurring Basis
The following table sets forth by level within the fair value hierarchy the Company's financial assets that were accounted for at fair value on a recurring basis as of March 31, 2019, and December 31, 2018 (in thousands).

 
 
March 31, 2019
 
December 31, 2018
 
 
Level 1
 
Level 2
 
Level 3
 
Total
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Marketable securities - available for sale
 
$
—

 
$
23,946

 
$
—

 
$
23,946

 
$
—

 
$
32,754

 
$
—

 
$
32,754

 
 
$
—

 
$
23,946

 
$
—

 
$
23,946

 
$
—

 
$
32,754

 
$
—

 
$
32,754