Revenue (Tables)

6 Months Ended

Jun. 30, 2021

Revenue Disclosure [Abstract]

Schedule of timing of revenue recognition

	Three Months Ended June 30,				Six Months Ended June 30,
(Amounts in thousands)	2021		2020		2021		2020
Timing of revenue recognition:
Services and products transferred at a point in time	$	3,473	$	2,953	$	5,370	$	5,115
Services and products transferred over time		138		57		328		380
Total revenue	$	3,611	$	3,010	$	5,698	$	5,495

Schedule of revenue by products and services

	Three Months Ended June 30,				Six Months Ended June 30,
(Amounts in thousands)	2021		2020		2021		2020
Revenue by products and services:
Products	$	3,250	$	2,697	$	4,867	$	4,572
Services		361		313		831		923
Total revenue	$	3,611	$	3,010	$	5,698	$	5,495

Schedule of revenue by geography

	Three Months Ended June 30,				Six Months Ended June 30,
(Amounts in thousands)	2021		2020		2021		2020
Revenue by geography:
North America	$	2,550	$	2,735	$	4,281	$	4,925
International		1,061		275		1,417		570
Total revenue	$	3,611	$	3,010	$	5,698	$	5,495

Schedule of opening and closing balances of contract liabilities

(Amounts in thousands)	Total
Balance at December 31, 2020	$	864
Additions through advance billings to or payments from vendors		768
Additions through business acquisition		3,315
Revenue recognized that was included in the prior period balance		(554	)
Revenue recognized from current period advance billings to or payments from vendors		(394	)
Revenue recognized from amounts acquired through business acquisition		(1,031	)
Balance at June 30, 2021	$	2,968