Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Performance Obligations

The aggregate uncompleted performance obligations attributable to each of the Company's reporting segments is as follows (in thousands):

	December 31, 2021				December 31, 2020
	Current under one year		Non-current over one year		Current under one year		Non-current over one year
Restaurant/Retail	$	12,449	$	7,597	$	8,000	$	3,082
Government	—		—		—		—
Total	$	12,449	$	7,597	$	8,000	$	3,082

The changes in deferred revenue, inclusive of both current and long-term, are as follows:

(in thousands)	2021		2020
Beginning balance - January 1	$	11,082	$	12,486
Acquired deferred revenue (Note 2)	11,125		—
Recognition of deferred revenue	(19,229)		(11,005)
Deferral of revenue	17,068		9,601
Ending balance - December 31	$	20,046	$	11,082

Schedule of Disaggregated Revenue

Disaggregated revenue is as follows (in thousands):

	Year Ended December 31, 2021
	Restaurant/Retail Point in Time		Restaurant/Retail Over Time		Government Over Time
Hardware	$	102,066	$	—	$	—
Software	1,131		56,723		—
Service	19,983		30,448		—
Mission systems	—		—		38,311
Intelligence, surveillance, and reconnaissance solutions	—		—		33,188
Product	—		—		1,026
Total	$	123,180	$	87,171	$	72,525

	Year Ended December 31, 2020
	Restaurant/Retail Point in Time		Restaurant/Retail Over Time		Government Over Time
Hardware	$	72,029	$	—	$	—
Software	668		25,716		—
Service	16,523		27,576		—
Mission systems	—		—		37,448
Intelligence, surveillance, and reconnaissance solutions	—		—		32,947
Product	—		—		879
Total	$	89,220	$	53,292	$	71,274

Restaurant/Retail balances in the amount of $142.5 million presented across hardware, software and service was reclassified in the above table to conform with current year presentation.

	Year Ended December 31, 2019
	Restaurant/Retail Point in Time		Restaurant/Retail Over Time		Government Over Time
Hardware	$	63,811	$	—	$	—
Software	3,143		13,677		—
Service	26,903		15,773		—
Mission systems	—		—		29,541
Intelligence, surveillance, and reconnaissance solutions	—		—		33,513
Product	—		—		871
Total	$	93,857	$	29,450	$	63,925

Restaurant/Retail balances in the amount of $123.3 million presented across hardware, software and service was reclassified in the above table to conform with current year presentation.