Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Revenue

Schedule of amounts recorded in accrued liabilities

	June 30,		December 31,
	2020		2019
Contract liabilities	$	(520)	$	(396)
During the three and six months ended June 30, 2020, the Company recognized $25,000 and $234,000, respectively, of revenue that was included in the contract balances as of December 31, 2019.