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Fair Value Measurements (Tables)
 3 Months Ended
Mar. 31, 2020
Fair Value Disclosures [Abstract]  
Schedule of Fair Value Hierarchy of Financial Assets Carried at Fair Value and Measured on Recurring Basis
The fair value hierarchy of our financial assets and liabilities carried at fair value and measured on a recurring basis was as follows (in thousands):
  Fair value measurements at the reporting date using
 March 31, 2020Quoted prices in
active markets
using identical 
assets
(Level 1)		Significant other
observable
inputs
(Level 2)		Significant
unobservable
inputs
(Level 3)
Cash equivalents: money market and other funds
$4,278  $4,278  $—  $—  
Total assets at fair value$4,278  $4,278  $—  $—  
  Fair value measurements at the reporting date using
 December 31, 2019Quoted prices in
active markets
using identical 
assets
(Level 1)		Significant other
observable
inputs
(Level 2)		Significant
unobservable
inputs
(Level 3)
Cash equivalents: money market and other funds
$4,264  $4,264  $—  $—  
Total assets at fair value$4,264  $4,264  $—  $—