Contract Assets and Liabilities

6 Months Ended

Jun. 30, 2021

Revenue From Contract With Customer [Abstract]

Contract Assets and Liabilities

3. CONTRACT ASSETS AND CONTRACT LIABILITIES

The balance of contract assets and contract liabilities consisted of the following (in thousands):

	June 30, 2021		December 31, 2020
Contract assets
Current	$	2,015	$	1,238
	$	2,015	$	1,238
Contract liabilities
Current	$	1,167	$	953
Non-current		511		293
	$	1,678	$	1,246

	June 30, 2021
Estimate of when contract liabilities will be recognized as revenue:
Within 12 months	$	1,167
Within 12 to 24 months		511
Greater than 24 months		—

The current portion of contract assets are included in our accounts receivable as of June 30, 2021 and 2020.

The current portion of contract liabilities is included in unearned revenues and the non-current portion of contract liabilities is included in other long-term liabilities. We did not recognize any impairment losses on our receivables and contract assets for the three and six months ended June 30, 2021 and 2020.