Revenue Recognition - Schedule of Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 85,093	$ 68,950	$ 165,378	$ 123,417
Service
Disaggregation of Revenue [Line Items]
Revenue	35,781	27,185	69,540	45,213
Product
Disaggregation of Revenue [Line Items]
Revenue	28,390	23,939	53,477	42,495
Restaurant/Retail
Disaggregation of Revenue [Line Items]
Revenue	64,171	51,124	123,017	87,708
Government
Disaggregation of Revenue [Line Items]
Revenue	20,922	17,826	42,361	35,709
Point in Time | Restaurant/Retail
Disaggregation of Revenue [Line Items]
Revenue	32,901	29,111	62,332	50,601
Point in Time | Restaurant/Retail | Hardware
Disaggregation of Revenue [Line Items]
Revenue	27,771	23,355	52,424	41,190
Point in Time | Restaurant/Retail | Software
Disaggregation of Revenue [Line Items]
Revenue	(11)	294	23	537
Point in Time | Restaurant/Retail | Service
Disaggregation of Revenue [Line Items]
Revenue	5,141	5,462	9,885	8,874
Point in Time | Restaurant/Retail | Mission systems
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Point in Time | Restaurant/Retail | Intelligence, surveillance, and reconnaissance solutions
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Point in Time | Restaurant/Retail | Product
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Over Time | Restaurant/Retail
Disaggregation of Revenue [Line Items]
Revenue	31,270	22,013	60,685	37,107
Over Time | Restaurant/Retail | Hardware
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Over Time | Restaurant/Retail | Software
Disaggregation of Revenue [Line Items]
Revenue	20,640	14,806	39,953	22,439
Over Time | Restaurant/Retail | Service
Disaggregation of Revenue [Line Items]
Revenue	10,630	7,207	20,732	14,668
Over Time | Restaurant/Retail | Mission systems
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Over Time | Restaurant/Retail | Intelligence, surveillance, and reconnaissance solutions
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Over Time | Restaurant/Retail | Product
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Over Time | Government
Disaggregation of Revenue [Line Items]
Revenue	20,922	17,826	42,361	35,709
Over Time | Government | Hardware
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Over Time | Government | Software
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Over Time | Government | Service
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Over Time | Government | Mission systems
Disaggregation of Revenue [Line Items]
Revenue	11,747	9,284	24,037	18,831
Over Time | Government | Intelligence, surveillance, and reconnaissance solutions
Disaggregation of Revenue [Line Items]
Revenue	8,883	8,338	17,798	16,469
Over Time | Government | Product
Disaggregation of Revenue [Line Items]
Revenue	$ 292	$ 204	$ 526	$ 409