Operating Segment, Geographic Information and Significant Customers

Operating segments are defined as components of an enterprise evaluated regularly by the Company's chief operating decision maker (“CODM”) in deciding how to allocate resources and assess performance. The Company is comprised of one operating and reportable segment. The Company utilized the management approach for determining its operating segment in accordance with ASC 280, Segment Reporting.

The geographic distribution of the Company’s revenues as determined by order origination based on the country in which the Company's legal subsidiary is domiciled is summarized as follows:



	U.S.		Europe		Asia Pacific		Eliminations			Total
YEAR ENDED JUNE 30, 2018
Net revenues to unaffiliated customers	$	450,218	$	35,000	$	7,966	$	—		$	493,184
Inter-geographic revenues	10,650		925		—		(11,575		)	—
Net revenues	$	460,868	$	35,925	$	7,966	$	(11,575	)	$	493,184
Identifiable long-lived assets (1)	$	47,997	$	2,974	$	9	$	—		$	50,980
YEAR ENDED JUNE 30, 2017
Net revenues to unaffiliated customers	$	380,538	$	22,242	$	5,808	$	—		$	408,588
Inter-geographic revenues	7,637		44		—		(7,681		)	—
Net revenues	$	388,175	$	22,286	$	5,808	$	(7,681	)	$	408,588
Identifiable long-lived assets (1)	$	50,340	$	1,288	$	15	$	—		$	51,643
YEAR ENDED JUNE 30, 2016
Net revenues to unaffiliated customers	$	259,781	$	5,464	$	4,909	$	—		$	270,154
Inter-geographic revenues	7,911		447		—		(8,358		)	—
Net revenues	$	267,692	$	5,911	$	4,909	$	(8,358	)	$	270,154
Identifiable long-lived assets (1)	$	28,187	$	127	$	23	$	—		$	28,337

(1) Identifiable long-lived assets exclude goodwill and intangible assets.

In recent years, the Company completed a series of acquisitions that changed its technological capabilities, applications and end markets. As these acquisitions and changes occurred, the Company increased the proportion of its revenue derived from the sale of components in different technological areas, and also increased the amount of revenue associated with combining technologies into more complex and diverse products including modules, sub-assemblies and integrated subsystems. The following tables present revenue consistent with the Company's strategy of expanding its technological capabilities and program content. As additional information related to the Company’s products by end user, application and/or product grouping is attained, the categorization of these products can vary over time. When this occurs, the Company reclassifies revenue by end user, application and/or product grouping for prior periods. Such reclassifications typically do not materially change the sizing of, or the underlying trends of results within, each revenue category.

The following table presents the Company's net revenue by end market for the periods presented:



	Year Ended June 30,
	2018		2017		2016
Domestic (1)	$	410,050	$	341,699	$	220,253
International/Foreign Military Sales (2)	83,134		66,889		49,901
Total Net Revenue	$	493,184	$	408,588	$	270,154

(1) Domestic revenues consist of sales where the end user is within the U.S., as well as sales to prime defense contractor customers where the ultimate end user location is not defined.

(2) International/Foreign Military Sales consist of sales to U.S. prime defense contractor customers where the end user is outside the U.S., foreign military sales through the U.S. government, and direct sales to non-U.S. based customers intended for end use outside of the U.S.

The following table presents the Company's net revenue by end application for the periods presented:



	Year Ended June 30,
	2018		2017		2016
Radar (1)	$	159,737	$	150,441	$	140,289
Electronic Warfare (2)	114,801		106,446		72,118
Other Sensor and Effector (3)	48,088		27,719		12,494
Total Sensor and Effector	322,626		284,606		224,901
C4I (4)	87,414		31,679		3,472
Other (5)	83,144		92,303		41,781
Total Net Revenue	$	493,184	$	408,588	$	270,154

(1) Radar includes end-use applications where radio frequency signals are utilized to detect, track, and identify objects.

(2) Electronic Warfare includes end-use applications comprising the offensive and defensive use of the electromagnetic spectrum.

(3) Other Sensor and Effector products include all Sensor and Effector end markets other than Radar and Electronic Warfare.

(4) C4I includes rugged secure rackmount servers that are designed to drive the most powerful military processing applications.

(5) Other products include all component and other sales where the end use is not specified.

The following table presents the Company's net revenue by product grouping for the periods presented:



	Year Ended June 30,
	2018		2017		2016
Components (1)	$	142,982	$	105,669	$	31,252
Modules and Sub-assemblies (2)	194,377		161,973		126,777
Integrated Subsystems (3)	155,825		140,946		112,125
Total Net Revenue	$	493,184	$	408,588	$	270,154

(1) Components include technology elements typically performing a single, discrete technological function, which when physically combined with other components may be used to create a module or sub-assembly. Examples include but are not limited to power amplifiers and limiters, switches, oscillators, filters, equalizers, digital and analog converters, chips, MMICs (monolithic microwave integrated circuits), and memory and storage devices.

(2) Modules and Sub-assemblies include combinations of multiple functional technology elements and/or components that work together to perform multiple functions but are typically resident on or within a single board or housing. Modules and sub-assemblies may in turn be combined to form an integrated subsystem. Examples of modules and sub-assemblies include but are not limited to embedded processing modules, embedded processing boards, switch fabric boards, high speed input/output boards, digital receiver boards, graphics and video processing and Ethernet and IO (input-output) boards, multi-chip modules, integrated radio frequency and microwave multi-function assemblies, tuners, and transceivers.

(3) Integrated Subsystems include multiple modules and/or sub-assemblies combined with a backplane or similar functional element and software to enable a solution. These are typically but not always integrated within a chassis and with cooling, power and other elements to address various requirements and are also often combined with additional technologies for interaction with other parts of a complete system or platform. Integrated subsystems also include spare and replacement modules and sub-assemblies sold as part of the same program for use in or with integrated subsystems sold by the Company.

Customers comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Year Ended June 30,
	2018		2017		2016
Lockheed Martin Corporation	19	%	20	%	23	%
Raytheon Company	19		16		20
	38	%	36	%	43	%

While the Company typically has customers from which it derives 10% or more of its revenue, the sales to each of these customers are spread across multiple programs and platforms. Programs comprising 10% or more of the Company’s revenues for the periods shown below are as follows:



	Year Ended June 30,
	2018		2017		2016
SEWIP	*		*		12	%
Aegis	*		*		10	%
	—	%	—	%	22	%

*Indicates that the amount is less than 10% of the Company's revenues for the respective period. No programs were in excess of 10% of the Company's revenues for fiscal 2018 and 2017.