Fair value disclosures (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Schedule of fair value of financial assets

The following table presents the Company's assets that are measured at fair value on a recurring basis (in thousands):  

	As of March 31, 2020								As of December 31, 2019
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Short-term investments:
Money market funds	$	7,662	$	—	$	—	$	7,662	$	7,638	$	—	$	—	$	7,638
Other long-term assets:
Mutual funds held in Rabbi Trust	$	528	$	—	$	—	$	528	$	616	$	—	$	—	$	616