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Fair Value of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Schedule of assets and liabilities measured at fair value on a recurring basis
The Company’s financial assets measured at fair value on a recurring basis consist of money market funds. The Company invests excess cash from its operating cash accounts in overnight investments and reflects these amounts in cash and cash equivalents in the consolidated balance sheets at fair value using quoted prices in active markets for identical assets.
The tables below present information about the Company’s assets and liabilities measured at fair value on a recurring basis:
 
December 31, 2018
(in thousands)
Total Fair
Value
 
Level 1
 
Level 2
 
Level 3
Money market
$
61,391

 
$
61,391

 
$
—

 
$
—

Total
$
61,391

 
$
61,391

 
$
—

 
$
—

 
December 31, 2017
(in thousands)
Total Fair
Value
 
Level 1
 
Level 2
 
Level 3
Money market
$
8,700

 
$
8,700

 
$
—

 
$
—

Total
$
8,700

 
$
8,700

 
$
—

 
$
—