Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2020

Revenue Recognition [Abstract]

Summary of revenue performance obligations

The following is a summary of our revenue performance obligations:

	Three Months Ended June 30, 2020				Three Months Ended June 30, 2019
(In thousands except percentages)	Revenues		Percent of Revenues		Revenues		Percent of Revenues
Revenue recognized over time	$	362	2	%	$	292	2	%
Revenue recognized at a point in time		15,634	98	%		14,752	98	%
	$	15,996	100	%	$	15,044	100	%

	Six Months Ended June 30, 2020				Six Months Ended June 30, 2019
(In thousands except percentages)	Revenues		Percent of Revenues		Revenues		Percent of Revenues
Revenue recognized over time	$	555	2	%	$	638	2	%
Revenue recognized at a point in time		31,870	98	%		29,382	98	%
	$	32,425	100	%	$	30,020	100	%

Summary of contract assets and contract liabilities

The following summarizes our contract assets and contract liabilities:    

(In thousands)	June 30, 2020		December 31, 2019
Contract assets, included in other current assets	$	4	$	2
Contract liabilities - advance customer payments	$	661	$	389
Contract liabilities - deferred warranty revenue	$	323	$	275

Summary of the amounts reclassified from beginning contract liabilities to revenue

The following summarizes the amounts reclassified from beginning contract liabilities to revenue:

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2020		2019		2020		2019
Amounts reclassified from beginning contract liabilities to revenue	$	55	$	443	$	95	$	216
Amounts reclassified from deferred warranty revenue		83		110		183		224
Total	$	138	$	553	$	278	$	440