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Fair Value of Financial Instruments (Tables)
 6 Months Ended
Jun. 30, 2018
Fair Value Disclosures [Abstract]  
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis
The table below presents information about the Company’s assets and liabilities measured at fair value on a recurring basis:
 
June 30, 2018
(in thousands)
Total Fair
Value
 
Level 1
 
Level 2
 
Level 3
Money market
$
11,852

 
$
11,852

 
$
—

 
$
—

Total
$
11,852

 
$
11,852

 
$
—

 
$
—

 
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

 
$
—

 
$
—