Revenue (Tables)

9 Months Ended

Sep. 30, 2020

The following table represents a disaggregation of revenue by type of goods or services for three and nine months ended September 30, 2020 and 2019, along with the reporting segment for each category:

	Three months ended				Nine months ended
(in thousands)	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Performance segment
SDB	$	2,473	$	4,435	$	9,535	$	16,472
Software		942		786		2,575		2,170
Training and consulting		3,842		6,196		13,130		17,975

NITC segment
Training and consulting		5,665		8,614		19,727		29,066

Total revenue	$	12,922	$	20,031	$	44,967	$	65,683

Balance of Contract Liabilities and Revenue Recognized in Reporting Period

The following table reflects revenue recognized in the reporting periods presented that was included in contract liabilities from contracts with customers as of the beginning of the periods presented:

(in thousands)	Three months ended						Nine months ended
	September 30, 2020			September 30, 2019			September 30, 2020			September 30, 2019
Revenue recognized in the period from amounts included in Billings-in-Excess of Revenue Earned at the beginning of the period		$	1,520		$	762		$	6,221		$	8,615