10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from

Commission File Number: 001-38952

CAMBIUM NETWORKS CORPORATION

(Exact Name of Registrant as Specified in its Charter)

Cayman Islands	Not Applicable
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
c/o Cambium Networks, Inc.
3800 Golf Road, Suite 360 Rolling Meadows, Illinois 60008	(345) 943-3100
(Address of principal executive offices, including zip code)	(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Ordinary shares, $0.0001 par value	CMBM	Nasdaq Global Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Smaller reporting company	☐
Emerging growth company	☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

As of November 8, 2021, the registrant had 26,645,954 shares of ordinary shares, $0.0001 par value per share, outstanding.

Table of Contents

		Page
PART I.	FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)	1
	Condensed Consolidated Balance Sheets	1
	Condensed Consolidated Statements of Operations	2
	Condensed Consolidated Statements of Comprehensive Income	3
	Condensed Consolidated Statements of Shareholders’ Equity	4
	Condensed Consolidated Statements of Cash Flows	5
	Notes to Unaudited Condensed Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	34
Item 4.	Controls and Procedures	34
PART II.	OTHER INFORMATION	35
Item 1.	Legal Proceedings	35
Item 1A.	Risk Factors	35
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	37
Item 3.	Defaults Upon Senior Securities	37
Item 4.	Mine Safety Disclosures	37
Item 5.	Other Information	37
Item 6.	Exhibits	38
Signatures		39

i

Note regarding forward-looking statements

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the federal securities laws. All statements other than statements of historical fact contained in this Quarterly Report on Form 10-Q, including statements regarding our future results of operations and financial position, business strategy and plans and objectives of management for future operations, are forward-looking statements. These statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements.

In some cases, forward-looking statements may be identified by terms such as “may,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these terms or other similar expressions. The forward-looking statements in this Quarterly Report on Form 10-Q are only predictions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our business, financial condition and results of operations. These forward-looking statements speak only as of the date of this quarterly report and are subject to a number of risks, uncertainties and assumptions. Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, they should not be relied upon as predictions of future events. The events and circumstances reflected in our forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Some of the key factors that could cause actual results to differ from our expectations include:

• the unpredictability of our operating results;

• the impact of component shortages;

• the impact of logistics, freight and shipping availability shortages and costs increases;

• the inability of our third-party logistics and warehousing providers to deliver products to our channel partners and network operators in a timely manner;

• our limited or sole source suppliers’ inability to produce third-party components to build our products;

• our inability to predict and respond to emerging technological trends and network operators’ changing needs;

• our ability to respond to increased competition from current competitors as well as emerging  companies and established companies that may enter our markets;

• our reliance on third-party manufacturers, which subjects us to risks of product delivery delays and reduced control over product costs and quality;

• our reliance on distributors and value-added resellers for the substantial majority of our sales;

• the impact of actual or threatened health epidemics and other outbreaks;

• our ability to achieve similar growth rates of our earlier years in future periods;

• the quality of our support and services offerings;

• our distributors’ and channel partners’ inability to attract new network operators or sell additional products to network operators that currently use our products;

• the difficulty of comparing or forecasting our financial results on a quarter-by-quarter basis due to the seasonality of our business;

• the variation or decline in our gross margin from period-to-period;

• the technological complexity of our products, which may contain undetected hardware defects or software bugs;

• our channel partners’ inability to effectively manage inventory of our products, timely resell our products or estimate expected future demand;

• our inability to effectively forecast demand or manage our inventory;

• credit risk of our channel partners, which could adversely affect their ability to purchase or pay for our products;

• our ability to effectively deploy and train our direct sales force;

• our ability to manage and enhance our brand;

• unpredictability of sales and revenues due to lengthy sales cycles;

• any delay in sales or decrease in demand for our products by government agencies;

• risks associated with international sales and operations;

ii

• the uncertainty of any economic, financial, trade and legal implications of the withdrawal of the United Kingdom from the European Union;

• the loss of key personnel or an inability to attract, retain and motivate qualified personnel;

• the availability of unlicensed RF spectrum and the possibility that such spectrum becomes unavailable through overuse or licensing;

• the impact of any acquisition of, or investments in, other businesses;

• the impact of new regulations or standards, or changes in existing regulations or standards, in the U.S. or internationally, related to our products;

• our reliance on the availability of third-party licenses;

• our inability to obtain intellectual property protections for our products;

• our inability to maintain an effective system of internal controls, produce timely and accurate financial statements or comply with applicable regulations;

• current or future unfavorable economic conditions, both domestically and in foreign markets; and

• our ability to manage our growth and expand our operations.

We caution you that the foregoing list may not contain all of the forward-looking statements made in this Quarterly Report on Form 10-Q.

Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events or otherwise.

iii

PART I—FINANCIAL INFORMATION

Item 1. Financial Statements

Cambium Networks Corporation

Condensed Consolidated Balance Sheets

(in thousands, except for share and per share data)

	December 31,			September 30,
	2020			2021
					(unaudited)
ASSETS
Current assets
Cash	$	62,472		$	58,596
Receivables, net of allowances of $919 and $723		58,114			70,584
Inventories, net		33,962			28,789
Recoverable income taxes		1,420			1,262
Prepaid expenses		4,143			5,239
Other current assets		5,024			4,408
Total current assets		165,135			168,878
Noncurrent assets
Property and equipment, net		7,535			10,296
Software, net		3,438			5,000
Operating lease assets		5,083			5,227
Intangible assets, net		12,895			11,240
Goodwill		9,842			9,842
Deferred tax assets, net		1,537			7,961
Other noncurrent assets		288			568
TOTAL ASSETS	$	205,753		$	219,012
LIABILITIES AND EQUITY
Current liabilities
Accounts payable	$	30,859		$	24,882
Accrued liabilities		20,160			18,827
Employee compensation		14,911			13,465
Current portion of long-term external debt, net		29,201			—
Deferred revenues		6,471			7,257
Other current liabilities		6,009			5,586
Total current liabilities		107,611			70,017
Noncurrent liabilities
Long-term external debt, net		24,957			30,249
Deferred revenues		4,448			5,308
Noncurrent operating lease liabilities		3,332			3,999
Deferred tax liabilities, net		9			9
Other noncurrent liabilities		2,009			1,978
Total liabilities		142,366			111,560
Shareholders' equity
Share capital; $0.0001 par value; 500,000,000 shares authorized at December 31, 2020 and September 30, 2021; 26,126,672 shares issued and 26,034,526 outstanding at December 31, 2020 and 26,786,201 shares issued and 26,639,483 outstanding at September 30, 2021		3			3
Additional paid in capital		109,837			120,603
Treasury shares, at cost, 92,146 shares at December 31, 2020 and 146,718 shares at September 30, 2021		(1,090	)		(3,663	)
Accumulated deficit		(44,799	)		(8,805	)
Accumulated other comprehensive loss		(564	)		(686	)
Total shareholders' equity		63,387			107,452
TOTAL LIABILITIES AND EQUITY	$	205,753		$	219,012

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

1

Cambium Networks Corporation

Condensed Consolidated Statements of Operations

(in thousands, except for share and per share data)

(unaudited)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Revenues	$	72,971	$	75,920	$	195,654	$	257,144
Cost of revenues		36,902		39,900		98,481		130,862
Gross profit		36,069		36,020		97,173		126,282
Operating expenses
Research and development		10,213		12,082		31,326		36,302
Sales and marketing		8,293		9,938		26,632		29,696
General and administrative		8,604		6,640		21,675		22,065
Depreciation and amortization		1,643		1,548		5,038		4,707
Total operating expenses		28,753		30,208		84,671		92,770
Operating income		7,316		5,812		12,502		33,512
Interest expense, net		1,259		752		4,129		3,208
Other expense, net		318		88		80		209
Income before income taxes		5,739		4,972		8,293		30,095
Provision (benefit) for income taxes		144		355		224		(5,899	)
Net income	$	5,595	$	4,617	$	8,069	$	35,994
Earnings per share
Basic	$	0.22	$	0.17	$	0.31	$	1.37
Diluted	$	0.21	$	0.16	$	0.31	$	1.25
Weighted-average number of shares outstanding to compute net earnings per share
Basic		25,691,357		26,540,843		25,683,969		26,342,113
Diluted		26,346,673		28,639,177		25,867,164		28,705,677
Share-based compensation included in costs and expenses:
Cost of revenues	$	16	$	39	$	51	$	108
Research and development		396		834		1,186		2,193
Sales and marketing		251		540		726		1,374
General and administrative		291		663		742		1,909
Total share-based compensation	$	954	$	2,076	$	2,705	$	5,584

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

2

Cambium Networks Corporation

Condensed Consolidated Statements of Comprehensive Income

(in thousands)

(unaudited)

	Three Months Ended September 30,					Nine Months Ended September 30,
	2020		2021			2020			2021
Net income	$	5,595	$	4,617		$	8,069		$	35,994
Other comprehensive income (loss)
Foreign currency translation adjustment		103		(38	)		(301	)		(122	)
Comprehensive income	$	5,698	$	4,579		$	7,768		$	35,872

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

3

Cambium Networks Corporation

Condensed Consolidated Statements of Shareholders’ Equity

(in thousands)

(unaudited)

	Three Months Ended September 30, 2020
	Share Capital
	Shares			Amount		Additional paid in capital		Treasury shares			Accumulated deficit			Accumulated other comprehensive loss			Total shareholders' equity
Balance at June 30, 2020		25,684		$	3	$	106,524	$	(1,048	)	$	(60,900	)	$	(783	)	$	43,796
Net loss		—			—		—		—			5,595			—			5,595
Share-based compensation		—			—		954		—			—			—			954
Issuance of vested shares		4			—		—		—			—			—			—
Treasury shares withheld for net settlement		(1	)		—		—		(15	)		—			—			(15	)
Share options exercised		14			—		163		—			—			—			163
Foreign currency translation		—			—		—		—			—			103			103
Balance at September 30, 2020		25,701		$	3	$	107,641	$	(1,063	)	$	(55,305	)	$	(680	)	$	50,596
	Nine Months Ended September 30, 2020
	Share Capital
	Shares			Amount		Additional paid in capital		Treasury shares			Accumulated deficit			Accumulated other comprehensive loss			Total shareholders' equity
Balance at December 31, 2019		25,673		$	3	$	104,773	$	(1,094	)	$	(63,374	)	$	(379	)	$	39,929
Net loss		—			—		—		—			8,069			—			8,069
Share-based compensation		—			—		2,705		—			—			—			2,705
Issuance of vested shares		24			—		—		—			—			—			—
Treasury shares withheld for net settlement		(10	)		—		—		31			—			—			31
Share options exercised		14			—		163		—			—			—			163
Foreign currency translation		—			—		—		—			—			(301	)		(301	)
Balance at September 30, 2020		25,701		$	3	$	107,641	$	(1,063	)	$	(55,305	)	$	(680	)	$	50,596
	Three Months Ended September 30, 2021
	Share Capital
	Shares			Amount		Additional paid in capital		Treasury shares			Accumulated deficit			Accumulated other comprehensive loss			Total shareholders' equity
Balance at June 30, 2021		26,503		$	3	$	117,521	$	(3,276	)	$	(13,422	)	$	(648	)	$	100,178
Net income		—			—		—		—			4,617			—			4,617
Share-based compensation		—			—		1,886		—			—			—			1,886
Issuance of ordinary shares		—			—		—		—			—			—			—
Issuance of vested shares		34			—		—		—			—			—			—
Treasury shares withheld for net settlement		(11	)		—		—		(387	)		—			—			(387	)
Share options exercised		113			—		1,196		—			—			—			1,196
Foreign currency translation		—			—		—		—			—			(38	)		(38	)
Balance at September 30, 2021		26,639		$	3	$	120,603	$	(3,663	)	$	(8,805	)	$	(686	)	$	107,452
	Nine Months Ended September 30, 2021
	Share Capital
	Shares			Amount		Additional paid in capital		Treasury shares			Accumulated deficit			Accumulated other comprehensive loss			Total shareholders' equity
Balance at December 31, 2020		26,035		$	3	$	109,837	$	(1,090	)	$	(44,799	)	$	(564	)	$	63,387
Net income		—			—		—		—			35,994			—			35,994
Share-based compensation		—			—		5,061		—			—			—			5,061
Issuance of ordinary shares		39			—		1,164		—			—			—			1,164
Issuance of vested shares		195			—		—		—			—			—			—
Treasury shares withheld for net settlement		(55	)		—		—		(2,573	)		—			—			(2,573	)
Share options exercised		425			—		4,541		—			—			—			4,541
Foreign currency translation		—			—		—		—			—			(122	)		(122	)
Balance at September 30, 2021		26,639		$	3	$	120,603	$	(3,663	)	$	(8,805	)	$	(686	)	$	107,452

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

4

Cambium Networks Corporation

Condensed Consolidated Statements of Cash Flows

(in thousands)

(unaudited)

	Nine Months ended September 30,
	2020			2021
Cash flows from operating activities:
Net income	$	8,069		$	35,994
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		2,817			2,526
Amortization of software and intangible assets		2,688			2,720
Amortization of debt issuance costs		409			663
Share-based compensation		2,705			5,584
Deferred income taxes		(684	)		(6,424	)
Provision for inventory excess and obsolescence		1,933			(684	)
Other		571			(176	)
Change in assets and liabilities:
Receivables		7,931			(12,489	)
Inventories		10,567			5,857
Prepaid expenses		1,263			(1,103	)
Accounts payable		175			(7,110	)
Accrued employee compensation		5,313			(1,786	)
Accrued liabilities		(147	)		(128	)
Other assets and liabilities		(1,791	)		951
Net cash provided by operating activities		41,819			24,395
Cash flows from investing activities:
Purchase of property and equipment		(2,432	)		(4,197	)
Purchase of software		(921	)		(2,591	)
Cash paid for acquisition		(334	)		—
Net cash used in investing activities		(3,687	)		(6,788	)
Cash flows from financing activities:
Proceeds from issuance of revolver debt		10,000			—
Repayment of term loan		(7,500	)		(24,572	)
Repayment of revolver debt		(10,000	)		—
Issuance of ordinary shares		—			833
Taxes paid from shares withheld		31			(2,254	)
Proceeds from share option exercises		163			4,541
Net cash used in financing activities		(7,306	)		(21,452	)
Effect of exchange rate on cash		(52	)		(31	)
Net increase (decrease) in cash		30,774			(3,876	)
Cash, beginning of period		19,346			62,472
Cash, end of period	$	50,120		$	58,596
Supplemental disclosure of cash flow information:
Income taxes paid	$	1,626		$	573
Interest paid	$	3,138		$	1,828

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

5

Cambium Networks Corporation

Notes to Unaudited Condensed Consolidated Financial Statements

Note 1. Business and significant accounting policies

Business

Cambium Networks Corporation (“Cambium” or “Cambium Networks” or the “Company”), incorporated under the laws of the Cayman Islands, is a holding company whose principal operating entities are Cambium Networks, Ltd. (UK), Cambium Networks, Inc. (USA), and Cambium Networks Private Limited (India).  On October 28, 2011, Cambium acquired the point-to-point (“PTP”) and point-to-multi-point (“PMP”) businesses from Motorola Solutions, Inc. in an acquisition funded by investment funds affiliated with Vector Capital. Cambium Networks became the renamed entity subsequent to the acquisition.  Cambium Networks completed an initial public offering of its ordinary shares and listed its ordinary shares on The NASDAQ Global Market in June 2019.

Cambium Networks Corporation and its wholly owned subsidiaries provide fixed wireless broadband and Wi-Fi networking infrastructure solutions that work for businesses, communities and cities worldwide. Cambium Networks’ radios are deployed to connect people, places and things with a unified wireless fabric that spans multiple standards and frequencies of fixed wireless and Wi-Fi, all managed centrally via the cloud. The Company’s solutions are deployed in networks by service providers, enterprise, industrial and government connectivity solutions in urban, suburban and rural environments.

Basis of Presentation

The unaudited condensed consolidated financial statements include the accounts of Cambium Networks Corporation and its wholly-owned subsidiaries.  All intercompany balances and transactions have been eliminated.  The condensed consolidated financial statements as of September 30, 2021, and for the three-month and nine-month periods ended September 30, 2020 and 2021, and the related notes are unaudited. The unaudited condensed consolidated financial statements have been prepared on the same basis as the annual audited consolidated financial statements, and, in the opinion of management, reflect all adjustments, which comprise only normal recurring adjustments necessary to state fairly the Company’s financial position as of September 30, 2021 and results of operations for the three-month and nine-month periods ended September 30, 2020 and 2021 and cash flows for the nine-month periods ended September 30, 2020 and 2021. The condensed consolidated balance sheet as of December 31, 2020 has been derived from the audited financial statements at that date.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principals generally accepted in the United States (“U.S. GAAP”) have been condensed or omitted.  The condensed consolidated financial statements contained herein should be read in conjunction with the consolidated financial statements and related notes thereto for the year ended December 31, 2020 included in the Company’s annual report on Form 10-K and filed with the SEC on March 1, 2021.  The results of operations for the three-month and nine-month periods ended September 30, 2021 are not necessarily indicative of the operating results to be expected for the full year.

The Company has reclassified certain prior period amounts in the condensed consolidated statement of cash flows to conform to the current period’s presentation. Specifically, within the condensed consolidated statements of cash flows, the provision for inventory excess and obsolescence has been reclassified from “Other” to “Provision for inventory excess and obsolescence” and prepaid expenss has been reclassified from “Other assets and liabilities” to “Prepaid expenses”. This change in classification does not affect previously reported cash flows from operating activities in the condensed consolidated statements of cash flows.

Update to Significant Accounting Policies

There have been no material changes to the Company’s signifiant accounting policies disclosed in the 2020 Form 10-K, Part II, Item 8.

Recently adopted accounting pronouncements

  In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This update provides optional expedients and exceptions for applying generally accepted accounting principles to certain contract modification and hedging relationships that reference London Inter-bank Offered Rate (LIBOR) or another reference rate that is expected to be discontinued. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022, when the reference rate replacement activity is expected to be completed. The adoption of ASU 2020-04 will not have an impact on the condensed consolidated financial statements until the debt agreement is modified to no longer reference LIBOR, and is not expected to be material.

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, as part of its Simplification Initiative to reduce the cost and complexity in accounting for income taxes. ASU 2019-12 removed certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period,

6

and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 also amended other aspects of the guidance to help simplify and promote consistent application of GAAP. The Company adopted this ASU effective January 1, 2021 on a prospective basis. The adoption of ASU 2019-12 did not have a material impact on the condensed consolidated financial statements.

Note 2. Fair value

The fair value of the Company’s external debt under its Credit Agreement (as defined below) approximates its carrying value because the terms and conditions approximate the terms and conditions of current market debt available to the Company. Due to the floating interest rate the debt is classified as Level 2 of the fair value hierarchy. The external debt was estimated based on the current rates offered to the Company for debt with the same remaining maturities. The fair value of the Company’s Credit Agreement was $55.3 million and $30.7 million as of December 31, 2020 and September 30, 2021, respectively.

The fair value of cash approximates its carrying value (Level 1 of the fair value hierarchy)

Note 3. Balance sheet components

Inventories, net

Inventories, net consisted of the following (in thousands):

	December 31,			September 30,
	2020			2021
				(unaudited)
Finished goods	$	35,241		$	30,617
Raw materials		4,576			3,044
Gross inventory		39,817			33,661
Less: Excess and obsolete provision		(5,855	)		(4,872	)
Inventories, net	$	33,962		$	28,789

Accrued liabilities

Accrued liabilities consisted of the following (in thousands):

	December 31,		September 30,
	2020		2021
			(unaudited)
Accrued goods and services	$	7,937	$	7,345
Accrued inventory purchases		4,830		4,638
Accrued customer rebates		7,380		6,844
Other		13		—
Accrued liabilities	$	20,160	$	18,827

Accrued warranty

Provisions for warranty claims are primarily related to our hardware products and are recorded at the time products are sold. The change to accrued warranty was as follows (in thousands):

	Year ended December 31,			Nine months ended September 30,
	2020			2021
					(unaudited)
Beginning balance	$	706		$	1,714
Warranties assumed due to acquisition		1,174			—
Fulfillment of assumed acquisition warranty		(482	)		(207	)
Provision increase, net		316			227
Ending balance	$	1,714		$	1,734

At September 30, 2021, $1.2 million is included in Other current liabilities and $0.5 million is included in Other noncurrent liabilities on the Company’s condensed consolidated balance sheet.

7

Note 4. Property and equipment

Property and equipment, net consisted of the following (in thousands):

		December 31,			September 30,
	Useful Life	2020			2021
					(unaudited)
Equipment and tooling	3 to 5 years	$	24,367		$	28,924
Computer equipment	3 to 5 years		3,137			3,620
Furniture and fixtures	10 years		745			835
Leasehold improvements	2 to 3 years		282			384
Total cost			28,531			33,763
Less: Accumulated depreciation			(20,996	)		(23,467	)
Property and equipment, net		$	7,535		$	10,296

Total depreciation expense was $0.9 million and $0.8 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $2.8 million and $2.5 million for the nine-month periods ended September 30, 2020 and 2021, respectively.

Note 5. Software

Software consisted of the following (in thousands):

		December 31, 2020							September 30, 2021
	Useful Life	Gross carrying amount		Accumulated amortization			Net balance		Gross carrying amount		Accumulated amortization			Net balance
									(unaudited)		(unaudited)			(unaudited)
Acquired and    Software for    internal use	3 to7 years	$	15,680	$	(14,214	)	$	1,466	$	15,729	$	(14,737	)	$	992
Software marketed for    external sale	3 years		3,411		(1,439	)		1,972		5,986		(1,978	)		4,008
Total		$	19,091	$	(15,653	)	$	3,438	$	21,715	$	(16,715	)	$	5,000

Amortization of acquired and internal use software is computed using the straight-line method over an estimated useful life of generally three to seven years.  Amortization expense recognized on acquired and internal use software is reflected in depreciation and amortization in the condensed consolidated statements of operations.  Amortization expense was $0.2 million and $0.1 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.6 million and $0.5 million for the nine-month periods ended September 30, 2020 and 2021, respectively.

Amortization expense recognized on software to be sold or marketed externally was $0.2 million and $0.2 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.5 million and $0.5 million for the nine-month periods ended September 30, 2020 and 2021 and is included in cost of revenues on the condensed consolidated statements of operations.

Based on capitalized software assets at September 30, 2021, estimated amortization expense in future fiscal years is as follows (unaudited and in thousands):

Year ending December 31,	Acquired and internal use software		Software marketed for external use		Total
2021 (October - December)	$	167	$	299	$	466
2022		428		1,249		1,677
2023		179		1,363		1,542
2024		76		847		923
2025		68		250		318
Thereafter		74		—		74
Total amortization	$	992	$	4,008	$	5,000

8

Note 6. Goodwill and Intangible Assets

When the Company acquired the trade assets of Motorola Solutions, Inc.’s wireless point-to-point and point-to-multi-point businesses in 2011, the transaction generated goodwill and certain intangible assets.  The goodwill associated with this transaction was recorded by Cambium Networks Corporation and allocated to Cambium Networks, Ltd. and Cambium Networks, Inc. using a revenue and asset allocation method. Although goodwill has been allocated to two operating subsidiaries, as noted in Note 15 – Segment information, the Company operates as one operating segment and one reporting unit and therefore, goodwill is reported, and impairment testing performed, at the Cambium Networks Corporation consolidated level.

There was no change in the carrying amount of goodwill during the nine-month period ended September 30, 2021 (unaudited).

The Company tests goodwill and intangible assets for impairment annually on December 31 and more frequently if impairment indicators exist. Accordingly, the Company performs quarterly qualitative assessments of significant events and circumstances such as a reporting unit’s historical and current results, assumptions regarding future performance, strategic initiatives and overall economic factors, including the impact of the current global outbreak of the coronavirus (or COVID-19) and macro-economic developments, to determine the existence of potential indicators of impairment and assess if it is more likely than not that the fair value of the reporting unit or intangible asset is less than their carrying value. If indicators of impairment are identified, a quantitative impairment test is performed.

Qualitative assessments for the quarter did not indicate the existence of impairment indicators. Based on the operating results for the nine-month period ended September 30, 2021 and other considerations, the Company believes that it is more likely than not that the enterprise value for its one reporting unit and the fair value of intangibles is still greater than their carrying values. Accordingly, no goodwill impairment indicators were present at September 30, 2021 that would necessitate an interim impairment assessment.  

The useful life, gross carrying value, accumulated amortization, and net balance for each major class of definite-lived intangible assets at each balance sheet date were as follows (in thousands):

		December 31, 2020							September 30, 2021
	Useful Life	Gross carrying amount		Accumulated amortization			Net balance		Gross carrying amount		Accumulated amortization			Net balance
									(unaudited)		(unaudited)			(unaudited)
Unpatented    technology	3 - 7 years	$	14,660	$	(14,375	)	$	285	$	14,660	$	(14,510	)	$	150
Customer    relationships	5 - 18 years		19,300		(7,128	)		12,172		19,300		(8,253	)		11,047
Patents	7 years		11,300		(11,300	)		—		11,300		(11,300	)		—
Trademarks	10 years		5,270		(4,832	)		438		5,270		(5,227	)		43
Total		$	50,530	$	(37,635	)	$	12,895	$	50,530	$	(39,290	)	$	11,240

Intangible assets are amortized over their expected useful life and none are expected to have a significant residual value at the end of their useful life.  Intangible assets amortization expense was $0.6 million and $0.6 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $1.7 million and $1.7 million for the nine-month periods ended September 30, 2020 and 2021.

Based on capitalized intangible assets as of September 30, 2021, estimated amortization expense amounts in future fiscal years are as follows (unaudited and in thousands):

Year ending December 31,	Amortization
2021 (October - December)	$	461
2022		1,603
2023		1,498
2024		1,498
2025		1,498
Thereafter		4,682
Total amortization	$	11,240

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Note 7. Debt

As of September 30, 2021, the Company had $30.7 million outstanding under its current term loan facility and $0.0 million outstanding under its revolving credit facility. The Company has available $10.0 million under its revolving credit facility (unaudited).

The following table reflects the current and noncurrent portions of the external debt facilities at December 31, 2020 and September 30, 2021 (in thousands):

	December 31,			September 30,
	2020			2021
				(unaudited)
Term loan facility	$	55,250		$	30,678
Less debt issuance costs		(1,092	)		(429	)
Total debt		54,158			30,249
Less current portion of term facility		(29,747	)		-
Current portion of debt issuance costs		546			-
Total long-term external debt, net	$	24,957		$	30,249

Secured credit agreement

  The Company is currently operating under the Third Amendment (“Third Amendment”) to the December 21, 2017 credit agreement (as amended and restated, the “Credit Agreement”), which was entered into on June 28, 2019 with Silicon Valley Bank. Both the term loan facility and the revolving credit facility mature on December 21, 2022.

Interest accrues on the outstanding principal amount of the term loan on a quarterly basis and is equal to a base rate of the higher of (a) 1.25% per annum or (b) the rate per annum determined by reference to the 1-, 2-, 3- or 6-month US Dollar LIBOR rate as selected by the Company, plus an applicable margin of 4.75%, 4.25%, or 4.00% as determined by the Company’s performance as measured by the consolidated leverage ratio.  The rate on the term loan was 5.5% at December 31, 2020 and 5.25% at September 30, 2021. In addition to paying interest on the outstanding principal under the term loan facility, the Company is required to pay a commitment fee on the unutilized commitments under the revolving credit facility, quarterly in arrears. The Company is also required to pay letter of credit fees on the maximum amount available to be drawn under all outstanding letters of credit in an amount equal to the applicable margin on LIBOR-based borrowings under the revolving credit facility on a per annum basis, payable in arrears, as well as customer fronting fees for the issuance of letters of credit and agency fees.

Under the Third Amendment, the Company is required to make quarterly principal payments of $2.5 million, with the remaining principal due on maturity on December 21, 2022 The Company made a required prepayment in the second quarter of 2021 of $19.6 million in accordance with the excess cash flow provision in the Credit Agreement which was applied to the third quarter $2.5 million principal payment and will be applied to the scheduled principal payments over the next four quarters, with the next payment not due until the debt matures on December 21, 2022, at which time the remaining outstanding principal will be due. The Company is required to pay interest quarterly on the outstanding balance. The Company is permitted to voluntarily reduce the unutilized portion of the commitment amount and repay outstanding loans under the Credit Agreement at any time without premium or penalty, other than customary breakage costs with respect to LIBOR- based loans.

Maturities on the external debt outstanding at September 30, 2021 is as follows (unaudited and in thousands):

Year ending December 31,
2021 (October - December)	$	—
2022		30,678
Total	$	30,678

Borrowings under the Credit Agreement are secured by a first-priority lien on substantially all of the Company’s assets, the equity interests in the Company’s subsidiaries, and any intercompany debt. The Credit Agreement contains certain customary affirmative and negative covenants that are usual and customary for companies with similar credit ratings. As of September 30, 2021, the Company was in compliance with all affirmative and negative covenants (unaudited).

Net interest expense, including bank charges and amortization of debt issuance costs on the external debt, was $1.2 million and $0.7 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $4.1 million and $3.2 million for the nine-month periods ended September 30, 2020 and 2021, respectively. The nine-month period ended September 30, 2021 include $0.3 million of additional amortization of debt issuance costs associated with the excess cash flow payment.

10

Expected Discontinuation of LIBOR

In July 2017, the United Kingdom’s Financial Conduct Authority, or FCA, which regulates LIBOR, announced it will no longer compel banks to submit rates for the calculation of LIBOR after 2021. In May 2021, the FCA confirmed the 1 week and 2-month US Dollar LIBOR tenors will cease on December 31, 2021, but the remaining five US Dollar LIBOR tenors (overnight and 1, 3, 6 and 12 month) will not cease until June 30, 2023.  The base interest rate on the Company’s Credit Agreement may be determined by reference to the 1-, 2-, 3- or 6-month US Dollar LIBOR rate, as selected by the Company. The Credit Agreement matures on December 21, 2022, which is prior to the cessation of all tenors of the US Dollar LIBOR rate.

The Credit Agreement contemplates the discontinuation of LIBOR and provides options for the Company in such an event. The Company is evaluating the potential impact of a transition from LIBOR as an interest rate benchmark to other potential alternative reference rates. The Company will continue to actively assess the related opportunities and risks involved in this transition.

Note 8. Employee benefit plans

The Company’s employee benefit plans currently consist of a retirement plan in the United States and a separate defined contribution plan in the UK.  The Company does not offer any other postretirement benefit plans, such as retiree medical and dental benefits or deferred compensation agreements to its employees or officers.

U.S. plan

U.S. employees that satisfy certain eligibility requirements, including requirements related to age and length of service, are eligible to participate in the Cambium Networks, Inc. 401(k) Plan. The plan is intended to qualify as a tax-qualified 401(k) plan so that contributions to the 401(k) plan, and income earned on such contributions, are not taxable to participants until withdrawn or distributed from the 401(k) plan. Under the 401(k) plan, each employee is fully vested in his or her deferred salary contributions. Employee contributions are held and invested by the plan’s trustee as directed by participants. Under the Cambium Networks, Inc. 401(k) Plan, the Company matches 100% of employee contributions to the 401(k) plan up to a maximum amount of 4% of eligible wages, which matching contributions are subject to vesting in equal annual increments over two years of service. All contributions, including the Company match, are made in cash. Contributions made by the Company under the Cambium Networks, Inc. 401(k) Plan were $0.3 million and $0.2 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.8 million and $1.0 million for the nine-month periods ended September 30, 2020 and 2021, respectively.

UK plan

UK employees who satisfy certain eligibility requirements are eligible to participate in the Cambium Networks Ltd. Stakeholder Pension Scheme, which is a qualified defined contribution plan.  Employees are eligible to participate on the first of the month following receipt of their enrollment form, and eligible employees are automatically enrolled in the plan at a default employee contribution rate of 3% of eligible compensation and a company contribution rate of 5% of the employee’s basic salary.  The Company contribution rate increases by 1% for each additional 1% that the employee contributes up to a maximum of 7%.  Company matching contributions vest immediately and employees are always vested in their own contributions.  All contributions, including the Company match, are made in cash and deposited in the participant’s account each pay period.  The total contributed by the Company under this plan was $0.1 million and $0.1 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.3 million and $0.3 million for the nine-month periods ended September 30, 2020 and 2021, respectively.   

Note 9. Other expense, net

Net other expense was $0.3 million and $0.1 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.1 million and $0.2 million for the nine-month periods ended September 30, 2020 and 2021, respectively, and represents foreign exchange gains and losses.

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Note 10. Share-based compensation

2019 Share incentive plan

In June 2019, the Company’s Board of Directors adopted, and its shareholders approved, the 2019 Share Incentive Plan (“2019 Plan”).  The 2019 Plan provides for the grant of incentive share options, nonqualified share options, share appreciation rights, restricted share awards (“RSAs”), restricted share units (“RSUs”), other share-based awards and performance awards.  The number of shares that were reserved for issuance under the 2019 Plan was 3,400,000, in addition to the 240,037 RSAs and RSUs the Company granted in substitution for unvested Class B Units or phantom units in Vector Cambium Holdings (Cayman), L.P. (“VCH L.P.”). The Class B Units and phantom units were exchanged for RSAs or RSUs in connection with the Company’s initial public offering (“IPO”), based on a price of $12.00 per share (“Recapitalization Awards”).  The share reserve under the 2019 Plan is automatically increased on the first day of each fiscal year, beginning with the fiscal year ended December 31, 2020 and continuing until, and including, the fiscal year ending December 31, 2029.  The number of shares added annually is equal to the lowest of 1,320,000 shares, 5% of the number of the Company’s shares outstanding on the first day of such fiscal year, or an amount determined by the Board of Directors. As a result, on March 1, 2021, the Company registered 1,301,726 additional shares that may be issued under the 2019 Plan.

The Company’s employees, officers, directors, consultants, and advisors are eligible to receive awards under the 2019 Plan.  Incentive share options, however, may only be granted to its employees.  Participants in the 2019 Plan will also consist of persons to whom Recapitalization Awards were granted.

The following table summarizes changes in the number of shares available for grant under the Company’s equity incentive plans during the nine-month period ended September 30, 2021 (unaudited):

	Number of shares
Available for grant at December 31, 2020		832,134
Added to 2019 Share Incentive Plan		1,301,726
RSUs granted		(259,615	)
Options granted		(116,035	)
Shares withheld in settlement of taxes and/or exercise price		54,572
Forfeitures		24,687
Available for grant at September 30, 2021		1,837,469

Share-based compensation

The following table shows total share-based compensation expense for the three-month and nine-month periods ended September 30, 2020 and 2021 (unaudited and in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Cost of revenues	$	16	$	39	$	51	$	108
Research and development		396		834		1,186		2,193
Sales and marketing		251		540		726		1,374
General and administrative		291		663		742		1,909
Total share-based compensation expense	$	954	$	2,076	$	2,705	$	5,584

For the three-month and nine-month periods ended September 30, 2021, the Company recorded share-based compensation expense of $2.1 million and $5.6 million, respectively. For the three-month and nine-month periods ended September 30, 2020, the Company recorded share-based compensation expense of $1.0 million and $2.7 million, respectively.

For the three-month periods ended September 30, 2020 and 2021, the Company recorded corresponding income tax benefits of $0.2 million and $0.6 million, respectively, and for the nine-month period ended September 30, 2020 and 2021, the Company recorded corresponding tax benefits of $0.5 million and $3.0 million, respectively.  

12

As of September 30, 2021, the Company estimates the pre-tax unrecognized compensation expense of $19.5 million, net of estimated forfeitures, related to all unvested share-based awards, including share options, restricted share units and restricted share awards will be recognized through the first quarter of 2025. The Company expects to satisfy the exercise of share options and future distributions of shares for restricted share units and restricted share awards by issuing new ordinary shares that have been reserved under the 2019 Plan.

The Company uses the Black-Scholes option pricing model to estimate the fair value of share options. The Company utilized a forfeiture rate of 8.2% during the nine-month period ended September 30, 2021 for estimating the forfeitures of share options and restricted share units granted.  

Share options

The following is a summary of option activity for the Company’s share incentive plans for the nine-month period ended September 30, 2021 (unaudited):

	Options			Weighted average exercise price		Weighted Average remaining contractual term (years)		Aggregate intrinsic value
Outstanding at December 31, 2020		3,164,185		$	11.24		8.8	$	43,793,890
Options granted		116,035		$	42.52		—	$	—
Options exercised		(425,184	)	$	10.68		—	$	—
Options forfeited		(21,312	)	$	11.00		—	$	—
Outstanding at September 30, 2021		2,833,724		$	12.61		8.2	$	67,564,369
Options exercisable at September 30, 2021		1,114,876		$	11.22		8.0	$	27,841,726
Options vested and expected to vest at September 30, 2021		2,761,432		$	12.60		8.2	$	65,844,785

Share options typically have a contractual term of ten years from grant date.

At September 30, 2021, the aggregate intrinsic value of options exercisable under the Company’s share incentive plans was $27.8 million.  The Company had 425,184 options exercised during the nine-month period ended September 30, 2021.

At September 30, 2021, there was $9.7 million in unrecognized pre-tax share-based compensation expense, net of estimated forfeitures, related to unvested share option awards. The unrecognized share-based compensation expense is expected to be recognized through the first quarter of 2025.

The fair value of options granted are estimated on the date of grant using the Black-Scholes option pricing model.  The fair value of share options is being amortized on a straight-line basis over the requisite service period of the awards.  The fair value of share options is estimated using the following weighted-average assumptions (unaudited):

	Nine Months Ended September 30,
	2020			2021
Expected dividend yield		—			—
Risk-free interest rate		0.39	%		1.14	%
Weighted-average expected volatility		50.0	%		50.9	%
Expected term (in years)		6.5			6.5
Weighted average grant-date fair value per share of options granted	$	7.56		$	21.36

13

Restricted shares

The following is a summary of restricted shares activity for the Company’s share incentive plans for the nine-month period ended September 30, 2021 (unaudited):

	Units			Weighted average grant date fair value
RSU and RSA balance at December 31, 2020		519,197		$	4.89
RSUs and RSAs granted		259,615		$	42.63
RSUs and RSAs vested		(194,757	)	$	4.95
RSUs and RSAs forfeited		(3,375	)	$	42.52
RSU and RSA balance at September 30, 2021		580,680		$	21.53
RSUs and RSAs expected to vest at September 30, 2021		580,680		$	21.53

During the nine-month period ended September 30, 2021, 259,615 RSUs were granted under the Company’s 2019 Share Incentive Plan and 194,757 RSUs and RSAs vested. The Company withheld 54,572 of those shares to pay the employees’ portion of the minimum payroll withholding taxes.

As of September 30, 2021, there was $9.8 million in unrecognized pre-tax compensation expense, net of estimated forfeitures, related to unvested restricted share awards and restricted share units. The unrecognized compensation expense is expected to be recognized through the third quarter of 2025.

Employee share purchase plan

In June 2019, the Company’s Board of Directors adopted, and its shareholders approved, the Employee Share Purchase Plan (“ESPP”).  The ESPP was effective on June 25, 2019, and the current offering period of six months commenced on July 1, 2021 and runs through December 31, 2021. The purchase price of the shares is 85% of the lower of the fair market value of the Company’s ordinary shares on the first trading day of the offering period and the purchase date. Upon adoption of the plan, a total of 550,000 shares were made available under the ESPP.  Per the ESPP, the number of shares that will be available for sale also includes an annual increase on the first day of each fiscal year beginning in 2020, equal to the lesser of:  275,000 shares, 1% of the outstanding shares as of the last day of the immediately preceding fiscal year, or such other amount as the administrator may determine. The Company registered 256,730 and 260,345 additional shares on March 24, 2020 and March 1, 2021, respectively, for a total of 1,067,075 shares that may be issued under the ESPP.

For the three-month and nine-month periods ended September 30, 2021, the Company recognized $0.2 million and $0.5 million, respectively, of share-based compensation expense related to the ESPP. There were 39,061 shares issued under the ESPP during the six-month offering period that ended on June 30, 2021.

Note 11. Share capital - shares

The following table reflects the share capital activity (unaudited):

	Number of shares			Value (in thousands)
Balance at December 31, 2020		26,034,526		$	3
Issuance of ordinary shares under employee share purchase plan		39,061			—
Issuance of vested shares		195,284			—
Share options exercised		425,184			—
Shares withheld for net settlement of shares issued		(54,572	)		—
Balance at September 30, 2021		26,639,483		$	3

As of September 30, 2021, no dividends have been declared or paid.

14

Note 12. Earnings per share

Basic net earnings per share is computed by dividing net income by the weighted-average number of shares outstanding during the period.  Diluted net earnings per share is computed by giving effect to all potentially dilutive ordinary share equivalents outstanding for the period.  For purposes of this calculation, share options, RSUs, RSAs and ESPP awards are considered to be ordinary share equivalents but are excluded from the calculation of diluted earnings per share when including them would have an anti-dilutive effect.  The following table sets forth the computation of basic and diluted net earnings per share (unaudited and in thousands, except for share and per share data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Numerator:
Net income	$	5,595	$	4,617	$	8,069	$	35,994
Denominator:
Basic weighted average shares outstanding		25,691,357		26,540,843		25,683,969		26,342,113
Dilutive effect of share option awards		281,244		1,785,873		—		1,968,804
Dilutive effect of restricted share units and restricted share awards		374,072		312,459		183,195		382,951
Dilutive effect of employee share purchase plan		—		2		—		11,809
Diluted weighted average shares outstanding		26,346,673		28,639,177		25,867,164		28,705,677
Net earnings per share, basic	$	0.22	$	0.17	$	0.31	$	1.37
Net earnings per share, diluted	$	0.21	$	0.16	$	0.31	$	1.25

Note 13. Income taxes

The Company’s provision for income taxes is based upon the estimated annual tax rate for the year applied to federal, state and foreign income. The Company recorded a provision for income taxes of $0.1 million and a provision of $0.4 million for the three-month periods ended September 30, 2020 and 2021, with an effective tax rate of 2.5% and 7.1%, respectively. In the three-month period ended September 30, 2020, the effective tax rate of 2.5% was primarily due to a partial release of a valuation allowance against the loss carryforwards in the Company’s UK entity. For the three-month period ended September 30, 2021, the effective tax rate of 7.1% did not benefit from the release of a valuation allowance, as all of the remaining valuation allowance on the UK NOL was released in the first quarter of 2021. For the three-month period ended September 30, 2021, the Company’s effective tax rate of 7.1% was different from the statutory rate of 21.0%, primarily due to tax benefits arising on employee restricted share vesting and option exercises.

In the nine-month periods ended September 30, 2020 and 2021, the Company recorded a provision for income taxes of $0.2 million and a tax benefit of $(5.9) million, with an effective tax rate of 2.7% and (19.6)%, respectively. The change in the effective tax rate from 2.7% to (19.6)% was primarily due to the release of a valuation allowance against the loss carryforwards in the Company’s UK entity and tax benefits arising on employee restricted share vesting and option exercises. For the nine-month period ended September 30, 2021, the Company’s effective tax rate of (19.6)% was different from the statutory rate of 21.0% primarily due to the release of a valuation allowance against the loss carryforwards in the Company’s UK entity resulting in recognition of a tax benefit, and tax benefits arising on employee restricted share vesting and option exercises.

The Company reviews the likelihood that it will realize the benefit of its deferred tax assets and, therefore, the need for a valuation allowance on a quarterly basis. It established a valuation allowance on all of its net deferred tax assets of its UK entity at June 30, 2019, given that the Company was in a 12-quarter cumulative loss position. The Company had continued to carry the valuation allowance through 2019, and during 2020 through the period ended December 31, 2020, due to a continuing 12-quarter cumulative loss position.

In the first quarter of 2021, management concluded that all of the valuation allowance on the Company’s UK entity’s deferred tax assets was no longer needed. This is primarily due to a 12-quarter cumulative income through the first quarter of 2021 and the forecast of future taxable income. As of September 30, 2021, based on the evaluation of positive and negative evidence, the Company believes it is more likely than not that the net deferred tax assets will be realized by its UK entity. Accordingly, management has recognized, and continues to recognize a non-recurring tax benefit of $7.7 million related to the valuation allowance reversal. As of September 30, 2021, the Company continued to maintain a valuation allowance of $0.7 million for state research and development tax credit benefits in the state of California. Such assessment may change in the future as further evidence becomes available.

On June 10, 2021, a new tax law became effective in the UK. The new tax law introduced certain tax changes in the UK, including a higher rate of 25% beginning April 1, 2023, and a 30% first year bonus depreciation on qualifying capital expenditures beginning April 1, 2021. The Company has revalued certain longer termed deferred assets at the higher future tax rate of 25% based on the expected reversal date of those assets. In addition, the Company initiated utilization of the 30% bonus first year depreciation on fixed assets placed into service beginning on April 1, 2021. The impact of the tax changes was not significant for the nine-month period ended September 30, 2021, though the impact will become more significant when the current tax rate changes from the current rate of 19% to 25% beginning on April 1, 2023.

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Note 14. Commitments and contingencies

In accordance with ASC 460, Guarantees, the Company recognizes the fair value for guarantee and indemnification arrangements it issues or modifies, if these arrangements are within the scope of the interpretation.  In addition, the Company must continue to monitor the conditions that are subject to the guarantees and indemnifications in order to identify if a loss has incurred.  If the Company determines it is probable that a loss has occurred, then any such estimated loss would be recognized under those guarantees and indemnifications and would be recognized in the Company’s condensed consolidated statements of operations and corresponding condensed consolidated balance sheets during that period.

Indemnification

The Company generally indemnifies its customers against claims brought by a third party to the extent any such claim alleges that the Company’s product infringes a patent, copyright or trademark or violates any other proprietary rights of that third party.  The maximum potential amount of future payments the Company may be required to make under these indemnification agreements is not estimable.

The Company indemnifies its directors and officers and select key employees, including key employees serving as directors or officers of the Company’s subsidiaries, for certain events or occurrences, subject to certain limits, while the director or officer is or was serving at the Company’s request in such capacity.  The term of the indemnification period is for the director’s or officer’s term of service. The Company may terminate the indemnification agreements with its directors, officers or key employees upon the termination of their services as directors or officers of the Company or its subsidiaries, or the termination of activities for which indemnification has been provided, but termination will not affect claims for indemnification related to events occurring prior to the effective date of termination.  The maximum amount of potential future indemnification is unlimited; however, the Company has a director and officer insurance policy that limits its exposure.  The Company believes the fair value of these indemnification agreements is minimal.

Warranties

The Company offers a standard warranty on its products, with the term depending on the product, and records a liability for the estimated future costs associated with potential warranty claims.  The Company’s responsibility under its standard warranty is the repair or replacement of in-warranty defective product, or to credit the purchase price of the defective product, at its discretion, without charge to the customer.  The Company’s estimate of future warranty costs is largely based on historical experience factors including product failure rates, material usage, and service delivery cost incurred in correcting product failures. The standard warranty is included in either Other current liabilities or Other noncurrent liabilities on its condensed consolidated balance sheets, depending on the time period covered by the warranty. The Company also offers an extended warranty for purchase that represents a future performance obligation for the Company. The extended warranty is included in deferred revenues (both current and noncurrent) on the condensed consolidated balance sheets and recognized on a straight-line basis over the term of the extended warranty. The warranty costs are reflected in the Company’s condensed consolidated statements of operations within cost of revenues.    

Legal proceedings

Third parties may from time to time assert legal claims against the Company.  The Company records accruals for loss contingencies to the extent that it concludes it is probable that a liability has been incurred and the amount of the related loss can be reasonably estimated. The Company evaluates, on a regular basis, developments in legal proceedings and other matters that could cause a change in amounts recorded. Due to the inherent uncertainty involving legal matters, the ultimate resolution could differ from amounts recorded. There is no pending or threatened legal proceedings to which the Company is a party, that in the Company’s opinion, is likely to have a material adverse effect on its financial condition or results of operations.

Note 15. Segment information

The Company’s chief operating decision maker (“CODM”) is its Chief Executive Officer.  The Company’s CODM reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance.  Accordingly, the Company determined that it operates as one operating segment and one reporting unit.

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Note 16. Revenues from contracts with customers

Revenues consist primarily of revenues from the sale of hardware products with essential embedded software.  Revenues also include limited amounts for software products, extended warranty on hardware products and subscription services.  Substantially all products are sold through distributors and other channel partners, such as resellers and systems integrators.

The Company recognizes revenue to reflect the transfer of control of promised products or services to a customer in an amount that reflects the consideration to which the Company expects to be entitled in exchange for products or services.

The Company accounts for a contract when it has approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable.  

The Company identifies its distinct performance obligations under each contract.  A performance obligation is a promise in a contract to transfer a distinct product or service to the customer.  Hardware products with essential embedded software, software products, and purchased extended warranty on hardware products have been identified as separate and distinct performance obligations.

The transaction price is the amount of consideration to which the Company expects to be entitled in exchange for transferring products or services to a customer. An adjustment to revenue is made to adjust the transaction price to exclude the consideration related to products expected to be returned.  The Company records an asset at the carrying amount of the estimated stock returns and a liability for the estimated amount expected to be refunded to the customer.  The transaction price also excludes other forms of consideration provided to the customer, such as volume-based rebates and co-operative marketing allowances.

The Company recognizes revenue when, or as, it satisfies a performance obligation by transferring control of a promised product or service to a customer.  Revenue from hardware products with essential embedded software is recognized when control of the asset is tranferred, which is typically at the time of shipment. Revenue from perpetual license software is recognized at the point in time that the customer is able to use or benefit from the software.  Extended warranty on hardware products is a performance obligation that is satisfied over time, beginning on the effective date of the warranty period and ending on the expiration of the warranty period.  The Company recognizes revenue on extended warranties on a straight-line basis over the warranty period. Revenue from software subscriptions is recognized ratably over the term in which the services are provided and the performance obligation is satisfied.

The Company enters into revenue arrangements that may consist of multiple performance obligations, such as hardware products and extended warranty.  The Company allocates the transaction price to each performance obligation on a relative standalone selling price basis for each distinct product or service in the contract.  The best evidence of standalone selling price is the observable price of a product or service when the Company sells that product or service separately in similar circumstances and to simlar customers.  If a standalone selling price is not directly observable, the Company estimates the transaction price allocated to each performance obligation using the expected costs plus a margin approach.

Disaggregation of revenues

Revenues by product category were as follows (unaudited and in thousands, except percentages):

	Three Months Ended September 30,								Nine Months Ended September 30,
	2020				2021				2020				2021
Point-to-Multi-Point	$	43,342	59	%	$	50,144	66	%	$	118,773	61	%	$	167,739	65	%
Point-to-Point		17,967	25	%		13,890	18	%		43,679	22	%		45,432	18	%
Wi-Fi		9,949	14	%		10,734	14	%		29,070	15	%		41,154	16	%
Other		1,713	2	%		1,152	2	%		4,132	2	%		2,819	1	%
Total Revenues	$	72,971	100	%	$	75,920	100	%	$	195,654	100	%	$	257,144	100	%

The Company’s products are predominately sold through third-party distributors, and distributed through a third-party logistics provider with facilities in the United States, Netherlands and China.  The Company has determined the geographical distribution of product revenues based upon the ship-to destinations specified by its distributor customers.

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Revenues by geography were as follows (unaudited and in thousands, except percentages):

	Three Months Ended September 30,								Nine Months Ended September 30,
	2020				2021				2020				2021
North America	$	38,656	53	%	$	36,564	48	%	$	102,145	52	%	$	140,105	54	%
Europe, Middle East and Africa		20,250	28	%		23,414	31	%		59,418	30	%		67,047	26	%
Caribbean and Latin America		9,138	12	%		7,993	11	%		19,021	10	%		30,660	12	%
Asia Pacific		4,927	7	%		7,949	10	%		15,070	8	%		19,332	8	%
Total Revenues	$	72,971	100	%	$	75,920	100	%	$	195,654	100	%	$	257,144	100	%

Contract balances

The following table summarizes contract balances as of December 31, 2020 and September 30, 2021 (in thousands):

	December 31, 2020		September 30, 2021
			(unaudited)
Trade accounts receivable, net of allowance for    credit losses	$	56,798	$	69,580
Deferred revenue - current		6,471		7,257
Deferred revenue - noncurrent		4,448		5,308
Refund liability	$	2,416	$	2,480

Deferred revenue consists of amounts due or received from customers in advance of the Company satisfying performance obligations under contractual arrangements. Deferred revenue is classified as current or noncurrent based on the timing of when revenue will be recognized.  The changes in deferred revenue were due to normal timing differences between the Company’s performance and the customers’ payment.    

The refund liability is the estimated amount expected to be refunded to customers in relation to product exchanges made as part of the Company’s stock rotation program and returns that have been authorized, but not yet received by the Company.  It is included within Other current liabilities in the condensed consolidated balance sheets.

Receivables and concentration of credit risk

Trade accounts receivable represents amounts for which the Company has an unconditional right to payment.  Amounts are in accordance with contractual terms and are recorded at face amount less an allowance for credit losses. The Company establishes an allowance for credit losses to present the net amount of accounts receivable expected to be collected. The allowance is determined by using the loss-rate method, which requires an estimation of loss rates based upon historical loss experience adjusted for factors that are relevant to determining the expected collectability of accounts receivables. Some of these factors include macroeconomic conditions that correlate with historical loss experience, delinquency trends, aging behavior of receivables and credit and liquidity indicators for individual customers.

The Company considers the credit risk of all customers and regularly monitors credit risk exposure in its trade receivables.  The Company’s standard credit terms with its customers are generally net 30 to 60 days. The Company had two customers representing more than 10% of trade receivables at December 31, 2020 and one customer representing more than 10% of trade receivables at September 30, 2021.

Remaining performance obligations

Remaining performance obligations represent the revenue that is expected to be recognized in future periods related to performance obligations included in a contract that are unsatisfied, or partially satisfied, as of the end of a period.  As of December 31, 2020, deferred revenue (current and noncurrent) of $10.9 million represents the Company’s remaining performance obligations, of which $6.5 million is expected to be recognized within one year, with the remainder to be recognized thereafter.  As of September 30, 2021, deferred revenue (current and noncurrent) of $12.6 million represents the Company’s remaining performance obligations, of which $7.3 million is expected to be recognized within one year, with the remainder to be recognized thereafter (unaudited).

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Revenue recognized during the three and nine-month periods ended September 30, 2021 which was previously included in deferred revenues as of December 31, 2020 was $1.8 million and $5.4 million, respectively, compared to $1.5 million and $6.3 million of revenue recognized during the three and nine-month periods ended September 30, 2020, respectively, which was previously included in deferred revenues as of December 31, 2019.

Cost to obtain a contract

Sales commissions are incremental costs of obtaining a contract.  The Company has elected to recognize these expenses as incurred, as the amortization period of these costs is one year or less.

Note 17. Leases

Right-of-use assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at the commencement date.  The Company’s lease payments are typically fixed or contain fixed escalators.  The Company’s leases typically include certain lock-in periods and renewal options to extend the lease, but does not consider options to extend the lease it is not reasonably certain to exercise.  The Company elected the practical expedient to not separate the lease and non-lease components of its leases and currently has no leases with options to purchase the leased property.

The components of lease expense were as follows and are included in general and administrative expense (unaudited and in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Operating lease cost	$	643	$	630	$	1,935	$	1,981
Short-term lease cost		96		82		245		222
Variable lease costs		67		125		282		354
Total lease expense	$	806	$	837	$	2,462	$	2,557

Supplemental balance sheet information related to leases were as follows (in thousands, except lease term and discount rate):

	Balance Sheet Caption	December 31, 2020			September 30, 2021
					(unaudited)
Operating leases:
Operating lease assets	Operating lease assets	$	5,083		$	5,227
Current lease liabilities	Other current liabilities	$	2,167		$	1,638
Noncurrent lease liabilities	Noncurrent operating lease liabilities	$	3,332		$	3,999
Weighted average remaining lease    term (years):
Operating leases			3.35			3.63
Weighted average discount rate:
Operating leases			8.36	%		5.76	%

Supplemental cash flow information related to leases were as follows (unaudited and in thousands):

	Nine Months Ended September 30,
	2020		2021
Supplemental cash flow information:
Cash paid for amounts included in the measurement    of lease liabilities	$	1,937	$	1,976

The Company’s current lease terms range from one to five years and may include options to extend the lease by one to four years.

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Remaining maturities on lease liabilities as of September 30, 2021 is as follows (unaudited and in thousands):

	Operating leases
2021 (October - December)	$	594
2022		1,852
2023		1,787
2024		1,022
2025		786
Thereafter		405
Total lease payments		6,446
Less:  interest		809
Present value of lease liabilities	$	5,637

As of September 30, 2021, the Company did not have any leases that have not yet commenced.

Note 18. Related party transactions

The Company follows ASC 850, Related Party Disclosures, for the identification of related parties and disclosure of related party transactions.  A party is considered to be related to the Company if the party directly or indirectly or through one or more intermediaries, controls, is controlled by, or is under common control with the Company.  Related parties also include principal owners of the Company, its management, members of the immediate families of principal owners of the Company and its management and other parties with which the Company may deal.

For the three-month periods ended September 30, 2020 and 2021, the Company did not have any related party transactions to disclose.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of financial condition and results of operation should be read in conjunction with the consolidated financial statements and related notes thereto of Cambium Networks Corporation (“Cambium”, “we”, “our”, or “us”) included elsewhere in this Quarterly Report on Form 10-Q and with the financial statements and related notes and Management’s Discussion and Analysis in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed March 1, 2021. Results for the three-month and nine-month periods ended September 30, 2021 are not necessarily indicative of the results that may be expected for any period in the future.

Overview

We provide fixed wireless broadband and Wi-Fi networking infrastructure solutions for network operators, including wireless internet service providers, enterprises, mobile network operators, government agencies, communities, and cities worldwide. Our scalable, reliable, and high-performance solutions create a purpose-built wireless network deployed indoors or outdoors that connects people, places and things with a unified wireless fabric that spans multiple standards and frequencies of fixed wireless and Wi-Fi, all managed centrally via the cloud. Our multi-gigabit wireless fabric offers a compelling value proposition to traditional fiber and alternative wireless solutions mobile infrastructure.

Our wireless fabric includes intelligent radios, smart antennas, radio frequency, or RF, algorithms, wireless-aware switches and our on-premises or cloud-based network management software. Our products support licensed and unlicensed spectrum, tailored for many frequency bands. We provide deep technical and operational expertise based on years of deploying networks, resulting in ease of use of our products, and all Cambium Networks solutions are backed by our global organization that provides 24/7 support services tailored to meet the business needs of our end users.

We were formed in 2011 when Cambium Networks acquired the Point-to-Point (“PTP”) and Point-to-Multi-Point (“PMP”) businesses from Motorola Solutions.  Prior to the acquisition, Motorola Solutions had invested over a decade in developing the technology and intellectual property assets that formed the foundation of our business, having launched the Canopy PMP business in 1999 and having acquired the Orthogon Systems PTP business in 2006.  Following the acquisition, we renamed the business Cambium Networks and we leveraged the technology to continue to develop and offer an extensive portfolio of reliable, scalable and secure enterprise-grade fixed wireless broadband PTP and PMP products, and Wi-Fi, switch and IIoT solutions.

We offer our fixed wireless broadband and Wi-Fi solutions in three categories:

• PTP:  We offer PTP solutions that are designed to operate in unlicensed spectrum from 220 MHz to 5.9 GHz and in licensed spectrum from 6-38 and 71-86 GHz. In addition, our PTP 700 operates in NATO Band IV from 4.4-5.9 GHz, as well as in the 7 GHz and 8 GHz bands, and meets stringent federal operating, performance and security standards. The mainstay of our backhaul offering is the PTP 670 for commercial applications and PTP 700 for defense and national security applications. In addition, our PTP 820 series offers carrier-grade microwave backhaul in licensed spectrum, and our PTP 550 offers price-performance leadership in spectral efficiency in sub-6 GHz unlicensed spectrum. In addition to dedicated point-to-point platforms, as technology has evolved, solutions have developed that while principally supporting point-to-multi-point architectures, also support point-to-point applications, including the recently introduced 60 GHz cnWave v3000 Client Node and the ePMP Force 425. Revenues from these products are included in the PMP product category in our revenues by product category reporting, as that is their primary application.

• PMP:  Our PMP portfolio ranges from our top-of-the-line PMP 450 series to our ePMP solutions for network operators that need to optimize for both price and performance to our cnReach family of narrow-bandwidth connectivity products for industrial communications.  The PMP 450 series is optimized for performance in high-density and demanding physical environments, and includes the PMP 450m with integrated cnMedusa massive multi-user multiple input/multiple output, or MU-MIMO, technology.  The PMP 450 product line also supports the FCC’s Citizen Broadband Radio Service, or CBRS. The FCC completed the auction of CBRS Priority Access Licenses, or PAL, in the third quarter of 2020, complementing the existing availability of General Authorized Access, or GAA, licenses. Network operators are adopting the PMP 450 solution to exercise both PAL and GAA licenses. For less demanding environments, ePMP provides a high-quality platform at a more affordable price. The ePMP 3000 supports 4x4 MU-MIMO and is complemented by a broad portfolio of ePMP Force 300 subscriber radios. cnRanger, our Fixed LTE solution, operated in the 2 GHz (Bands 38, 40, 41) and 3 GHz (Bands 42, 43, 48). Like the PMP 450 platform, the 3 GHz cnRanger solution supports the CRBS service, while the 2 GHz bands support the FCC’s Educational Broadband Service, or EBS, classification. cnReach products enable IIoT applications, such as supervisory control and data acquisition, or SCADA, processes in the oil and gas, electric utility, water, railroad and other industrial settings. In the fourth quarter of 2020, we began shipping our 60 GHz solution, cnWave, which enables Gbps networking using the 60 GHz band and includes Facebook Terragraph technology.

• Wi-Fi:  Our Wi-Fi portfolio includes our cnPilot cloud-managed Wi-Fi solutions, our cnMatrix cloud-managed wireless-aware switching solution, our Xirrus Wi-Fi solutions, and our Wi-Fi 6 portfolio of Wi-Fi 6 access points which support both cnMaestro and Xirrus XMS management. cnPilot is for indoor and outdoor enterprise, small business and home applications and offers a range of Wi-Fi access points and RF technology that enable network optimization based on desired geographic coverage and user density. cnMatrix provides the intelligent interface between wireless and wired networks.  

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cnMatrix’s policy-based configuration accelerates network deployment, mitigates human error, increases security, and improves reliability. Xirrus has a portfolio of high-performance enterprise Wi-Fi access points and cloud based subscription services. In June 2020, we introduced our first Wi-Fi 6 access point, the XV3-8, which supports both cnPilot and Xirrus solutions. Additional Wi-Fi 6 access points are under development to meet diverse user cases. In the first quarter of 2021, we introduced and began shipping the cnMatrix TX 2020R-P. The TX 2020R-P is the first of a series of switches designed specifically to support PMP and PTP fixed wireless broadband networks, incorporating the cnMatrix enterprise class feature set and incorporating additional features and services pertinent to network operators deploying fixed wireless broadband networks. The TX 2012R-P was introduced in April of 2021 and is the second platform in the TX series.

We generate a substantial majority of our sales through our global channel distribution network, including, as of September 30, 2021, approximately 170 distributors that we sell to directly, together with over 10,600 value added resellers and system integrators supplied by these distributors for further sales to end-users.  Our channel partners provide lead generation, pre-sales support and product fulfillment, along with professional services for network design, installation, commissioning and on-going field support.  Although we fulfill sales almost exclusively through our channel partners, through our global sales team we engage directly with network operators in our key vertical markets including service providers, enterprises, industrials, defense and national security entities, and state and local governments. Our sales team responds to bids or requests for quotes, typically in collaboration with a channel partner. Our distributors carry inventory of our products for resale, and generally have stock rotation rights only if they simultaneously place an off-setting order for product.  As such, we generally recognize revenue from sales to distributors on a sell-in basis, and manage our finished goods inventory to plan for distributor demand.

We outsource production of our products to third-party manufacturers, who are responsible for purchasing and maintaining inventory of components and raw materials and, in certain cases, we resell third-party products on a white-label basis.  We believe that this approach gives us the advantages of relatively low capital investment and significant flexibility in scheduling production, managing inventory levels and providing a comprehensive solution to meet network operator demand.  The majority of our products are delivered to us at one of three distribution hubs, where we have outsourced the warehousing and delivery of our products to a third-party logistics provider and from which we manage worldwide fulfillment.

Trends impacting our business

Component shortages and increased freight costs

We remain constrained by the global component part shortages, particularly the shortage in available semiconductor chipsets and related components, as the global integrated circuit supply is under pressure as demand surpasses supply capacity, causing foundries to allocate existing supply among their customers. These supply constraints are occurring at a time of increasing demand for us and others globally, further exacerbating the supply constraint. As a result, we are experiencing increased lead times for the supply of many of our products, impacting our ability to timely supply our customers. In particular, semiconductor chips and merchant silicon and related semiconductor parts are currently in high demand with limited supply, which is resulting in significantly longer than usual lead times and increased costs for these components. We have encountered, and are likely to continue to encounter, shortages and delays in obtaining these and other components, and this could have a material adverse effect on our ability to meet customer orders. Shortages are expected to continue into 2022. In addition, such shortages or delays are resulting in increased component and delivery costs, as suppliers raise the cost of components.  We have also experienced price increases in base commodities, impacting component pricing generally and in particular for electromechanical commodities. These component shortages and increases in costs have impacted, and are expected to continue over the short term to continue to impact, our sales and revenues, and our gross margins and net income.

Logistics challenges remain as well, as container shortages continue to lengthen availability times of containers and carriage, resulting in increases in relevant freight costs, all at a time when demand across many of our product lines has increased, together with increasing demand for shipment of many other products globally. Ports have increasing lead times with delays becoming commonplace in the container freight market as port delays, worker shortages and the impact of COVID-19 are impacting the ability to import and export goods, particularly from China. Logistics and freight costs are increasing substantially as a result. We are also experiencing increasing rates, resulting in increased use of expedited freight modes due to supply shortages. The use of expedited freight modes has increased our cost of revenues, resulting in a decrease in our gross margins, and is expected to continue in the short term.

COVID-19

Although the outbreak of COVID-19 has resulted and is likely to continue to result in disruption to our business and operations as well as the operations of our customers and suppliers, our markets continue to improve as the need for additional connectivity grows to meet the needs of a remote workforce and remote education. In addition, enterprise Wi-Fi solutions continue to be driven by the transition to Wi-Fi 6 solutions.

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However, we expect continuing restrictions on business operations and travel globally will continue to impact the ability of our end user customers to deploy our products, as well as our sales activities, and general business uncertainty will continue to negatively impact demand in several of our markets.

We continue to focus on making sure our employees are safe and continue to operate with a substantial portion of our workforce working from home. We have allowed limited opening of our offices, but continue to have extended remote working and will continue to monitor conditions as we extend this further. We are slowly increasing travel to meet customer needs and are beginning to increase our business travel to customers, as well as to conferences and other marketing events. The extent of the continued impact of the COVID-19 pandemic on our operational and financial performance will depend on future developments, including the duration, severity and spread of the pandemic, related restrictions on travel and transportation and other actions that may be taken by governmental authorities and the impact to the business of our suppliers or customers, all of which are uncertain and cannot be predicted.

With respect to liquidity, we believe our balance sheet will provide us the necessary capital to navigate the COVID-19 pandemic. In addition, during 2020, we implemented several initiatives to conserve cash and optimize profitability, including limiting discretionary spending, temporarily reducing personnel costs, eliminating non-essential travel, delaying or reducing hiring activities, and deferring certain discretionary capital expenditures. In 2021, we have and will continue to enforce several of these initiatives to conserve cash and optimize profitability.

Digital transformation and new product introductions

While enterprises and governments continue to look to digital transformation to improve operations by harnessing new technologies, software and applications, our revenues have been impacted by the component shortages and freight and logistics delays referenced above, impacting our ability to manufacture and ship products according to orders. Enterprises seek to gain analytics and improve security and risk, while governments seek to connect more of the unconnected, including people, places (such as schools and government buildings) and things (such as meters, valves, doors, cameras), as well as to enable digital education, digital economy and digital currency.  Each of these digital transformation objectives are underpinned by the need for increased connectivity, as employees, customers and others must be able to access the enterprise network securely from anywhere. As a result, we continue to see increased interest in connection with our wireless broadband solutions for customers accessing the CBRS band where we have benefitted from investments we have made over the past few years in fixed wireless infrastructure technologies in such areas as PMP, including CBRS-compatible products in the U.S. We have also seen increases in interest from our new opportunities such as gigabit wireless solutions with our 60 GHz cnWave millimeter wave products, our enterprise Wi-Fi 6, and cloud-enabled wireless switching products which enable higher speed connectivity (gigabits per second) and can be very rapidly deployed with a lot of flexibility to keep pace with the network demand these digital transformations are presenting. In the U.S., the first phase of the Rural Digital Opportunity Fund, or RDOF, launched by the Federal Communications Commission, or FCC, is expected to accelerate the provision of high-speed broadband service to millions of underserved communities in the U.S. over the next ten years, as well as the anticipated Infrastructure Investment and Jobs Act currently being considered.

International trade

A substantial portion of our Wi-Fi products are manufactured in China, and we continue to monitor tensions between the U.S. and China and their potential impact on our ability to produce and ship our products. Should tensions escalate, our ability to manufacture our products in China could be affected, causing disruption in our supply chain, and requiring us to seek other sources of supply.

Financial results for the three-month period ended September 30, 2021

• Total revenue was $75.9 million, an increase of 4.0% year-over-year

• Gross margin was 47.4%

• Total costs of revenues and operating expenses were $70.1 million

• Operating income was $5.8 million

• Net income was $4.6 million

Basis of presentation

Revenues

Our revenues are generated primarily from the sale of our products, which consist of hardware with essential embedded software. Our revenues also include limited amounts for software products, extended warranty on hardware products and subscription

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services. We generally recognize product revenues at the time of shipment, provided that all other revenue recognition criteria have been met. Revenues are recognized net of estimated stock returns, volume-based rebates and cooperative marketing allowances that we provide to distributors. We recognize subscription services revenue ratably over the term in which services are provided and our performance obligation is satisfied. We provide a standard warranty on our hardware products, with the term depending on the product, and record a liability for the estimated future costs associated with potential warranty claims. In addition, we also offer extended warranties for purchase and represents a future performance obligation for us. The extended warranty is included in deferred revenues and is recognized on a straight-line basis over the term of the extended warranty.

Cost of revenues and gross profit

Our cost of revenues is comprised primarily of the costs of procuring finished goods from our third-party manufacturers, third-party logistics and warehousing provider costs, freight costs and warranty costs. We outsource our manufacturing to third-party manufacturers located primarily in Mexico, China, Israel and Taiwan. Cost of revenues also includes costs associated with supply operations, including personnel related costs, provision for excess and obsolete inventory, third-party license costs and third-party costs related to services we provide. Cost of revenues also includes share-based compensation expense and the amortization of capitalized development costs on software marketed for sale.

Gross profit has been and will continue to be affected by various factors, including changes in product mix. The margin profile of products within each of our core product categories can vary significantly depending on the operating performance, features and manufacturer of the product. Generally, our gross margins on backhaul and access point products are greater than those on our customer premise equipment, or CPE, products. Because the ratio of CPE to PTP and PMP access points typically increases as network operators build out the density of their networks, increases in follow-on sales to network operators as a percentage of our total sales typically have a downward effect on our overall gross margins. Finally, gross margin will also vary as a function of changes in pricing due to competitive pressure, our third-party manufacturing and other production costs, cost of shipping and logistics, provision for excess and obsolete inventory and other factors. We expect our gross margins will fluctuate from period to period depending on the interplay of these various factors.

Operating expenses

We classify our operating expense as research and development, sales and marketing, and general and administrative expense. Personnel costs are the primary component of each of these operating expense categories, which consist of personnel costs, such as salaries, sales commissions, benefits, bonuses and share-based compensation expense. In addition, we separate depreciation and amortization in their own category.

Research and development

In addition to personnel-related costs, research and development expense consists of costs associated with design and development of our products, product certification, travel and recruiting. We generally recognize research and development expense as incurred. For certain of our software projects under development, we capitalize the development cost during the period between determining technological feasibility of the product and commercial release. We amortize the capitalized development cost upon commercial release, generally over three years, which is included in cost of revenues. We typically do not capitalize costs related to the development of first-generation product offerings as technological feasibility generally coincides with general availability of the software. Although research and development expenses decreased in 2020 related to headcount reductions as part of our announced restructurings along with reduced contractor spend and travel as a result of restrictions due to the COVID-19 pandemic, research and development costs are increasing in 2021 as these restrictions are lifting and we have increased the size of our research and development organization as we continue to invest in our future products and services.

Sales and marketing

In addition to personnel costs for sales, marketing, service and product line management personnel, sales and marketing expense consists of our training programs, trade shows, marketing programs, promotional materials, demonstration equipment, national and local regulatory approval on our products, travel and entertainment, and recruiting. Although selling and marketing expenses decreased in 2020 related to lower payroll related costs as a result of our announced restructurings and reduced travel and marketing related spending as a result of restrictions due to the COVID-19 pandemic, in 2021, we expect sales and marketing expense to continue to increase as these restrictions are lifted and we increase the size of our sales, marketing, service, and product line management organization in support of our growth, conduct and attend in person marketing events, and, in particular, as we continue to expand our global distribution network.

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General and administrative

In addition to personnel costs, general and administrative expense consists of professional fees, such as legal, audit, accounting, information technology and consulting costs, insurance, facilities and other supporting overhead costs. We expect general and administrative expense to continue to increase as we continue to incur additional costs associated with being a public company and to support our growth.

Depreciation and amortization

Depreciation and amortization expense consist of depreciation related to fixed assets such as computer equipment, furniture and fixtures, and testing equipment, as well as amortization related to acquired and internal use software and definite lived intangibles.

Provision for income taxes

Our provision for income taxes consists primarily of income taxes in the jurisdictions in which we conduct business. As we have expanded our international operations, we have incurred additional foreign tax expense, and we expect this to continue. Management assesses our deferred tax assets in each reporting period, and if it is determined that it is not more likely than not to be realized, we will record a valuation allowance in that period.

Results of operations

The following table presents the consolidated statements of operations, as well as the percentage relationship to total revenues for items included in our consolidated statements of operations (in thousands):

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2020		2021		2020		2021
Statements of Operations Data:
Revenues	$	72,971	$	75,920	$	195,654	$	257,144
Cost of revenues		36,902		39,900		98,481		130,862
Gross profit		36,069		36,020		97,173		126,282
Operating expenses
Research and development		10,213		12,082		31,326		36,302
Sales and marketing		8,293		9,938		26,632		29,696
General and administrative		8,604		6,640		21,675		22,065
Depreciation and amortization		1,643		1,548		5,038		4,707
Total operating expenses		28,753		30,208		84,671		92,770
Operating income		7,316		5,812		12,502		33,512
Interest expense, net		1,259		752		4,129		3,208
Other expense, net		318		88		80		209
Income before income taxes		5,739		4,972		8,293		30,095
Provision (benefit) for income taxes		144		355		224		(5,899	)
Net income	$	5,595	$	4,617	$	8,069	$	35,994

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	Three months ended September 30,						Nine months ended September 30,
	2020			2021			2020			2021
Percentage of Revenues:
Revenues		100.0	%		100.0	%		100.0	%		100.0	%
Cost of revenues		50.6	%		52.6	%		50.3	%		50.9	%
Gross margin		49.4	%		47.4	%		49.7	%		49.1	%
Operating expenses
Research and development		14.0	%		15.9	%		16.0	%		14.1	%
Sales and marketing		11.4	%		13.1	%		13.6	%		11.6	%
General and administrative		11.8	%		8.7	%		11.1	%		8.6	%
Depreciation and amortization		2.3	%		2.0	%		2.6	%		1.8	%
Total operating expenses		39.4	%		39.7	%		43.3	%		36.1	%
Operating income		10.0	%		7.7	%		6.4	%		13.0	%
Interest expense, net		1.7	%		1.0	%		2.0	%		1.2	%
Other expense, net		0.4	%		0.1	%		0.1	%		0.1	%
Income before income taxes		7.9	%		6.6	%		4.2	%		11.7	%
Provision (benefit) for income taxes		0.2	%		0.5	%		0.1	%		(2.3	)%
Net income		7.7	%		6.1	%		4.1	%		14.0	%

Comparison of three-month period ended September 30, 2020 to the three-month period ended September 30, 2021

Revenues

	Three months ended September 30,				Change
(dollars in thousands)	2020		2021		$		%
Revenues	$	72,971	$	75,920	$	2,949		4.0	%

Revenues increased $2.9 million, or 4.0%, to $75.9 million for the three-month period ended September 30, 2021 from $73.0 million for the three-month period ended September 30, 2020 primarily as a result of increased demand for our point-to-multi-point and Wi-Fi product categories, mostly offset by a decrease in our point-to-point product category.  While our revenues increased, revenues for the three-month period ended September 30, 2021 were negatively impacted by global supply constraints affecting the procurement and shipment of products. Our revenues continue to benefit from the increase in the number of channel partners, which consists of over 10,600 channel partners as of September 30, 2021.  

Revenues by product category

	Three months ended September 30,				Change
(dollars in thousands)	2020		2021		$			%
Point-to-Multi-Point	$	43,342	$	50,144	$	6,802			15.7	%
Point-to-Point		17,967		13,890		(4,077	)		(22.7	)%
Wi-Fi		9,949		10,734		785			7.9	%
Other		1,713		1,152		(561	)		(32.7	)%
Total revenues by product category	$	72,971	$	75,920	$	2,949			4.0	%

Point-to-Multi-Point

Our PMP revenues increased $6.8 million, or 15.7%, from the three-month period ended September 30, 2020 to 2021, and represented 59% and 66% of our total revenues over the same periods, respectively.  Point-to-multi-point revenues benefitted from service providers continuing to scale networks due to requests for increased capacity along with demand for new technology, including CBRS compatible products, ePMP, and 60 GHz cnWave millimeter wave products.

Point-to-Point

PTP revenues decreased $4.1 million, or 22.7%, from the three-month period ended September 30, 2020 to 2021 mostly driven by decreased sales in North America as a result of decreased demand from the federal government and lower demand for backhaul products.

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Wi-Fi

Wi-Fi revenues increased $0.8 million, or 7.9%, from the three-month period ended September 30, 2020 to 2021. Wi-Fi revenues improved as a result of improving sales in education, and as the retail and hospitality industries continue recovering from the impact of the global shutdowns and other restrictions imposed by the COVID-19 pandemic along with new product momentum from switching products. However, the overall Wi-Fi market was negatively impacted by semiconductor and other component shortages.

Revenues by geography

	Three months ended September 30,				Change
(dollars in thousands)	2020		2021		$			%
North America	$	38,656	$	36,564	$	(2,092	)		(5.4	)%
Europe, Middle East, Africa		20,250		23,414		3,164			15.6	%
Caribbean and Latin America		9,138		7,993		(1,145	)		(12.5	)%
Asia Pacific		4,927		7,949		3,022			61.3	%
Total revenues by geography	$	72,971	$	75,920	$	2,949			4.0	%

Revenues increased in Europe, Middle East, Africa and Asia Pacific regions, with decreased revenue in North America and Caribbean and Latin America from the three-month period ended September 30, 2020 to September 30, 2021. Europe, Middle East, Africa revenues grew by $3.2 million, or 15.6%, mostly related to higher PMP revenues to service provider and higher Wi-Fi revenues.  Asia Pacific revenues increased $3.0 million, or 61.3%, due to higher PMP and PTP revenues offset by slightly lower Wi-Fi revenues due to supply constraints. North America declined by $2.1 million, or 5.4%, and contributed 53% and 48% of total revenues for the three-month periods ended September 30, 2020 and 2021, respectively. The decrease in North America revenues was primarily due to lower PTP revenues driven by lower demand by the federal government and for backhaul products, along with lower Wi-Fi revenues due to supply constraints impacting Wi-Fi 6 and switching products, partially offset by higher PMP revenues due to increased demand for CBRS and 60 GHz cnWave products. Caribbean and Latin America revenues decreased $1.1 million, or 12.5%, mostly due to lower PMP revenues partially offset by improved Wi-Fi revenues on strength of larger government projects and recovery in the hospitality industry.

Cost of revenues and gross margin

	Three months ended September 30,						Change
(dollars in thousands)	2020			2021			$		%
Cost of revenues	$	36,902		$	39,900		$	2,998		8.1	%
Gross margin		49.4	%		47.4	%			(200) bps

Cost of revenues increased $3.0 million, or 8.1%, to $39.9 million for the three-month period ended September 30, 2021 from $36.9 million for the three-month period ended September 30, 2020.  The increase in cost of revenues was primarily due to increased revenues, but also included higher duty and freight costs as a result of material shortages and COVID-19 surcharges, and increases in freight and logistics charges as a result of cost increases due to container shortages, use of other distribution, shipment and transportation modes, and increases in costs by logistics and freight providers to meet the high global demand, including higher logistics costs to meet current quarter demand.   

Gross margin decreased to 47.4% for the three-month period ended September 30, 2021 from 49.4% for the three-month period ended September 30, 2020.  The decrease reflects higher logistics costs to meet demand and higher production costs due to increases in component charges as a result of component shortages and increases in freight and logistics costs.

Operating expenses

	Three months ended September 30,				Change
(dollars in thousands)	2020		2021		$			%
Research and development	$	10,213	$	12,082	$	1,869			18.3	%
Sales and marketing		8,293		9,938		1,645			19.8	%
General and administrative		8,604		6,640		(1,964	)		(22.8	)%
Depreciation and amortization		1,643		1,548		(95	)		(5.8	)%
Total operating expenses	$	28,753	$	30,208	$	1,455			5.1	%

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Research and development

Research and development expense increased $1.9 million, or 18.3%, to $12.1 million for the three-month period ended September 30, 2021 from $10.2 million for the three-month period ended September 30, 2020.  As a percentage of revenues, research and development expenses increased to 15.9% in 2021 from 14.0% in 2020 over the same period. The increase in research and development expense in actual dollars was primarily due to $1.0 million higher payroll-related costs due to increased headcount and the elimination of salary reductions imposed in the second quarter of 2020 and $0.4 million higher share-based compensation expense. The increase was also driven by $0.7 million higher contractor spend as a result of both an increase in the number of contractors as projects ramp in 2021 and the third quarter of 2020 reflecting lower negotiated contractor costs amidst the uncertainty of COVID-19 along with $0.8 million higher engineering material spend due to timing of purchases, partially offset by $0.5 million higher capitalized software costs and absence of a $0.2 million software impairment recognized in the third quarter of 2020.

Sales and marketing

Sales and marketing expense increased $1.6 million, or 19.8%, to $9.9 million for the three-month period ended September 30, 2021 from $8.3 million for the three-month period ended September 30, 2020.  As a percentage of revenues, sales and marketing expense increased to 13.1% in 2021 from 11.4% in 2020 over the same period.  The increase in sales and marketing expense in actual dollars was primarily due to $0.8 million higher payroll related costs due to higher headcount and the elimination of salary reductions imposed in the second quarter of 2020 along with $0.3 million higher share-based compensation expense. The increase was also driven by $0.2 million higher marketing-related spend due to increased trade show and marketing services spend and $0.2 million higher travel-related spend as restrictions imposed by the COVID-19 pandemic are lessening.   

General and administrative

General and administrative expense decreased $2.0 million, or 22.8%, to $6.6 million for the three-month period ended September 30, 2021 from $8.6 million for the three-month period ended September 30, 2020.  As a percentage of revenues, general and administrative expense decreased to 8.7% in 2021 from 11.8% in 2020 over the same period.  The decrease in general and administrative expense in actual dollars was primarily due to $2.1 million lower legal fees, mostly due to $1.6 million of nonrecurring legal fees recognized in the third quarter of 2020, $0.3 million lower D&O insurance expense due to negotiated lower insurance costs and $0.2 million lower accounting and audit fees partially offset by $0.4 million increase in share-based compensation expense due to additional grants, $0.3 million higher payroll-related costs due to increased headcount and elimination of salary reductions imposed in the second quarter of 2020.

Depreciation and amortization

Depreciation and amortization expense decreased $0.1 million, or 5.8%, to $1.5 million for the three-month period ended September 30, 2021 from $1.6 million for the three-month period ended September 30, 2020.  The decrease in depreciation and amortization was mostly driven by assets becoming fully depreciated during 2020.

Interest expense, net

	Three months ended September 30,				Change
(dollars in thousands)	2020		2021		$			%
Interest expense, net	$	1,259	$	752	$	(507	)		(40.3	)%

Interest expense decreased $0.5 million, or 40.3%, to $0.8 million for the three-month period ended September 30, 2021 from $1.3 million for the three-month period ended September 30, 2020.  The decrease was primarily due to a reduction in the interest rate on the term loan from 6.0% to 5.25% along with lower term loan principal balance as a result of the excess cash flow payment of $19.6 million made in May 2021.

Other expense, net

	Three months ended September 30,				Change
(dollars in thousands)	2020		2021		$			%
Other expense, net	$	318	$	88	$	(230	)		(72.3	)%

Other expense, net changed from $0.3 million for the three-month period ended September 30, 2020 to $0.1 million for the three-month period ended September 30, 2021, primarily due to foreign currency fluctuations.

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Provision for income taxes

	Three months ended September 30,						Change
(dollars in thousands)	2020			2021			$		%
Provision for income taxes	$	144		$	355		$	211		146.5	%
Effective income tax rate		2.5	%		7.1	%

Our provision for income taxes changed to a provision of $0.4 million for the three-month period ended September 30, 2021 from a provision of $0.1 million for the three-month period ended September 30, 2020.  The effective income tax rates were 7.1% and 2.5% over the same periods, respectively, and reflect the application of our expected annual tax rate to pre-tax results for each of the periods as well as discrete tax impacts that arise during the periods. In the three-month period ended September 30, 2020, the effective income tax rate of 2.5% was primarily due to the partial release of a valuation allowance against the loss carryforwards in our UK entity. For the three-month period ended September 30, 2021, our effective income tax rate of 7.1% was different from the statutory rate of 21.0% primarily due to tax benefits arising on employee restricted share vesting and option exercises.

Comparison of nine-month period ended September 30, 2020 to the nine-month period ended September 30, 2021

Revenues

	Nine months ended September 30,				Change
(dollars in thousands)	2020		2021		$		%
Revenues	$	195,654	$	257,144	$	61,490		31.4	%

Revenues increased $61.4 million, or 31.4%, to $257.1 million for the nine-month period ended September 30, 2021 from $195.7 million for the nine-month period ended September 30, 2020, which was attributable to increased demand across all primary product categories, with a significant increase coming from our point-to-multi-point and Wi-Fi product categories.  Both product categories also benefitted from increased demand for new product introductions, such as our 60 GHz PMP cnWave products and our Wi-Fi 6 and switching products. Our revenues continue to benefit from the increase in the number of channel partners, which consists of over 10,600 channel partners as of September 30, 2021.  

Revenues by product category

	Nine months ended September 30,				Change
(dollars in thousands)	2020		2021		$			%
Point-to-Multi-Point	$	118,773	$	167,739	$	48,966			41.2	%
Point-to-Point		43,679		45,432		1,753			4.0	%
Wi-Fi		29,070		41,154		12,084			41.6	%
Other		4,132		2,819		(1,313	)		(31.8	)%
Total revenues by product category	$	195,654	$	257,144	$	61,490			31.4	%

Point-to-Multi-Point

Our PMP revenues increased $49.0 million, or 41.2%, from the nine-month period ended September 30, 2020 to 2021, and grew from 61% to 65% of our total revenues over the same period.  Point-to-multi-point revenues benefitted from service providers continuing to scale networks due to requests for increased capacity along with demand for new technology, including CBRS compatible products in North America, PMP, and 60 GHz cnWave millimeter wave products.

Point-to-Point

PTP revenues increased $1.8 million, or 4.0%, from the nine-month period ended September 30, 2020 to 2021 as a result of stronger sales in North America driven by increased demand for backhaul partially offset by decreased sales to the federal government.

Wi-Fi

Wi-Fi revenues increased $12.1 million, or 41.6%, from the nine-month period ended September 30, 2020 to 2021. Wi-Fi revenues improved as a result of improving sales in education, and as retail and hospitality industries begin recovering from the impact of the global shutdowns and other restrictions imposed by the COVID-19 pandemic, as well as strength from new product introductions, such as Wi-Fi 6 and switching products.

29

Revenues by geography

	Nine months ended September 30,				Change
(dollars in thousands)	2020		2021		$		%
North America	$	102,145	$	140,105	$	37,960		37.2	%
Europe, Middle East, Africa		59,418		67,047		7,629		12.8	%
Caribbean and Latin America		19,021		30,660		11,639		61.2	%
Asia Pacific		15,070		19,332		4,262		28.3	%
Total revenues by geography	$	195,654	$	257,144	$	61,490		31.4	%

Revenues increased in all regions from the nine-month period ended September 30, 2020 to September 30, 2021. North America revenues increased $38.0 million, or 37.2%, mostly due to higher revenues from PMP products due to increased demand from service providers and new product introductions along with higher Wi-Fi revenues from strength in new product introductions, such as Wi-Fi 6 and switching products. Europe, Middle East, Africa revenues increased $7.6 million, or 12.8%, mostly from PMP revenues increasing and improved Wi-Fi revenues.  Caribbean and Latin America revenues increased $11.6 million, or 61.2%, mostly due to higher PMP revenues on increased demand for CBRS products in Puerto Rico and higher Wi-Fi revenues on strength of larger government projects and recovery in the hospitality industry. Asia Pacific revenues increased $4.3 million, or 28.3%, mostly due to higher PMP revenues and improved Wi-Fi revenues as the region recovers from business shut-downs and other restrictions due to the COVID-19 pandemic.

Cost of revenues and gross margin

	Nine months ended September 30,						Change
(dollars in thousands)	2020			2021			$		%
Cost of revenues	$	98,481		$	130,862		$	32,381		32.9	%
Gross margin		49.7	%		49.1	%			(60) bps

Cost of revenues increased $32.4 million, or 32.9%, to $130.9 million for the nine-month period ended September 30, 2021 from $98.5 million for the nine-month period ended September 30, 2020.  The increase in cost of revenues was primarily due to increased revenues, but also included higher freight inbound, interwarehouse transfers and duty costs as a result of material shortages and COVID-19 surcharges, use of other distribution modes, and increases in costs by logistics and freight providers due to container shortages and to meet the high global demand, as well as higher production costs due to component shortages to meet current quarter demand, offset by favorable movement in provision for excess and obsolescence.  

Gross margin declined from 49.7% for the nine-month period ended September 30, 2020 to 49.1% for the nine-month period ended September 30, 2021.  

Operating expenses

	Nine months ended September 30,				Change
(dollars in thousands)	2020		2021		$			%
Research and development	$	31,326	$	36,302	$	4,976			15.9	%
Sales and marketing		26,632		29,696		3,064			11.5	%
General and administrative		21,675		22,065		390			1.8	%
Depreciation and amortization		5,038		4,707		(331	)		(6.6	)%
Total operating expenses	$	84,671	$	92,770	$	8,099			9.6	%

Research and development

Research and development expense increased $5.0 million, or 15.9%, to $36.3 million for the nine-month period ended September 30, 2021 from $31.3 million for the nine-month period ended September 30, 2020.  As a percentage of revenues, research and development expenses decreased to 14.1% in 2021 from 16.0% in 2020 over the same period. The increase in research and development expense in actual dollars was primarily due to $2.6 million in payroll-related costs due to higher headcount and elimination of salary reductions implemented in the second quarter of 2020, $1.9 million increase in corporate bonus accrual, higher contractor costs of $2.0 million due to ramping of projects in 2021 and impact of negotiated lower contractor fees in 2020 due to COVID-19, $1.0 million higher share-based compensation expense due to new grants issued and addition of employee share purchase plan in 2021 and $0.6 million higher engineering material costs. These costs are partially offset by higher capitalized software costs of $1.7 million, restructuring costs incurred in the first quarter of 2020 of $0.6 million that did not repeat in 2021, $0.3 million higher research and development tax credit and absence of $0.2 million software impairment recognized in the third quarter of 2020.

30

Sales and marketing

Sales and marketing expense increased $3.1 million, or 11.5%, to $29.7 million for the nine-month period ended September 30, 2021 from $26.6 million for the nine-month period ended September 30, 2020.  As a percentage of revenues, sales and marketing expense decreased to 11.6% in 2021 from 13.6% in 2020 over the same period.  The increase in sales and marketing expense in actual dollars was primarily due to $2.0 million increase in payroll-related costs due to increased headcount and impact of the elimination of salary reductions implemented in the second quarter of 2020 along with $1.2 million higher sales incentive and corporate bonus plan accruals, $0.6 million higher share-based compensation expense due to new grants issued and addition of employee share purchase plan in 2021 and $0.2 million higher marketing-related spend, partially offset by $0.4 million lower travel-related spend due to reductions in non-essential travel as a result of restrictions on travel due to the COVID-19 pandemic, and restructuring incurred in the first quarter of 2020 of $0.5 million that did not repeat in 2021.    

General and administrative

General and administrative expense increased $0.4 million, or 1.8%, to $22.1 million for the nine-month period ended September 30, 2021 from $21.7 million for the nine-month period ended September 30, 2020.  As a percentage of revenues, general and administrative expense decreased to 8.6% in 2021 from 11.1% in 2020 over the same period.  The increase in general and administrative expense in actual dollars was primarily due to $1.2 million higher share-based compensation expense due to additional grants issued and addition of the employee share purchase plan in 2021, $0.9 million increase in payroll-related costs due to increased headcount and impact of the elimination of salary reductions implemented in the second quarter of 2020, $0.6 million increase in corporate bonus accrual, $0.4 million of costs associated with the secondary offering completed in June 2021, $0.2 million higher lease expense as a result of increase in leases offset by $2.8 million lower legal fees mostly related to $1.6 million nonrecurring legal fees in the third quarter of 2020 and $0.1 million lower travel-related spend.

Depreciation and amortization

Depreciation and amortization expense decreased $0.3 million, or 6.6%, to $5.0 million for the nine-month period ended September 30, 2021 from $5.0 million for the nine-month period ended September 30, 2020.  The decrease in depreciation and amortization was mostly driven by assets becoming fully depreciated during 2021.

Interest expense, net

	Nine months ended September 30,				Change
(dollars in thousands)	2020		2021		$			%
Interest expense, net	$	4,129	$	3,208	$	(921	)		(22.3	)%

Interest expense decreased $0.9 million, or 22.3%, to $3.2 million for the nine-month period ended September 30, 2021 from $4.1 million for the nine-month period ended September 30, 2020.  The decrease was primarily due to a reduction in the interest rate on the term loan from 6.0% to 5.25% along with lower term loan principal balance as a result of the excess cash flow payment made in May 2021. Interest expense for the nine-months ended September 30, 2021 also includes an additional $0.3 million of amortization of debt issuance costs as a result of the excess cash flow payment.

Other expense, net

	Nine months ended September 30,				Change
(dollars in thousands)	2020		2021		$		%
Other expense, net	$	80	$	209	$	129		161.3	%

Other expense, net increased from expense of $0.1 million for the nine-month period ended September 30, 2020 to expense of $0.2 million for the nine-month period ended September 30, 2021, primarily due to foreign currency fluctuations.

Provision (benefit) for income taxes

	Nine months ended September 30,						Change
(dollars in thousands)	2020			2021			$			%
Provision (benefit) for income taxes	$	224		$	(5,899	)	$	(6,123	)	nm
Effective income tax rate		2.7	%		(19.6	)%

Our provision for income taxes changed $6.1 million to a benefit of $5.9 million for the nine-month period ended September 30, 2021 from a provision of $0.2 million for the nine-month period ended September 30, 2020.  The effective income tax rates were

31

(19.6)% and 2.7% over the same periods, respectively, and reflect the application of our expected annual tax rate to pre-tax results for each of the periods as well as discrete tax impacts that arise during the periods. The change in the effective income tax rate from 2.7% for the nine-month period ended September 30, 2020 to (19.6)% for the nine-month period ended September 30, 2021, was primarily due to the release of a valuation allowance against the loss carryforwards in our UK entity and tax benefits arising on employee restricted share vesting and option exercises. For the nine-month period ended September 30, 2021, our effective income tax rate of (19.6)% was different from the statutory rate of 21.0% primarily due to the release of a valuation allowance against the loss carryforwards in our UK entity, resulting in recognition of a tax benefit, and tax benefits arising on employee restricted share vesting and option exercises.

Liquidity and Capital Resources

As of September 30, 2021, we had a cash balance of $58.6 million. Our primary liquidity needs are: (i) to fund normal operating expenses; (ii) to meet interest and principal requirements of our outstanding indebtedness; and (iii) to fund capital expenditures.  We believe these needs will be satisfied over at least the next 12 months using existing cash and using cash flow generated by our operations. Our future capital requirements may vary materially from those currently planned and will depend on many factors, including our rate of revenue growth, the timing and extent of spending to support development efforts, the timing of new product introductions, market acceptance of our products and overall economic conditions. We expect to regularly assess market conditions and may take measures, including raising additional equity or incurring additional debt if and when our board of directors determines that doing so is in our best interest.

Cash Flows

The following table sets forth summarized cash flow data for the periods indicated (in thousands):

Cash flows from operating activities

	Nine months ended September 30,
	2020			2021
Cash provided by operating activities	$	41,819		$	24,395
Cash used in investing activities	$	(3,687	)	$	(6,788	)
Cash used in financing activities	$	(7,306	)	$	(21,452	)

Net cash provided by operating activities for the nine-month period ended September 30, 2020 of $41.8 million consisted primarily of net income of $8.1 million, adjustments for depreciation and amortization and other non-cash impacts of $8.4 million, share-based compensation of $2.7 million, an increase in deferred income taxes of $0.7 million, and changes in operating assets and liabilities that resulted in net cash provided of $23.3 million. The changes in operating assets and liabilities consisted primarily of a $10.6 million decrease in inventories as we procured additional inventory towards the end of 2019 which was sold in 2020 along with a $7.9 million decrease in accounts receivable as a result of stronger collections and lower sales in 2020 and $5.3 million increase in accrued employee compensation, offset by a $0.7 million in cash used in all other assets and liabilities, mostly driven by the amortization of our director’s and officers’ insurance policy offset by a reduction in deferred revenue.

Net cash provided by operating activities for the nine-month period ended September 30, 2021 of $24.4 million consisted primarily of net income of $36.0 million, an increase in deferred income taxes of $6.4 million, adjustments for depreciation and amortization and other non-cash impacts of $5.0 million, share-based compensation expense of $5.6 million, and changes in operating assets and liabilities that resulted in net cash outflows of $15.8 million.  The changes in operating assets and liabilities consisted primarily of a $12.5 million increase in accounts receivable as a result of higher sales in 2021, a $7.1 million decrease in accounts payable related to timing of purchases and payments, $1.8 million decrease in accrued employee compensation primarily due to the payment of the 2020 corporate bonus net of the 2021 corporate bonus and sales incentive plan accruals, and a $1.1 million increase in prepaid expenses mostly driven by the payment of the directors’ and officers’ insurance policy in the third quarter of 2021. This was partially offset by a $5.9 million decrease in inventories due to higher sales in the first three quarters of 2021 and the impact of the global component shortage on the costs to procure inventory and $0.8 million increase in cash provided by all other assets and liabilities, mostly driven by the reduction of deferred revenues offset by the net increase in our directors’ and officers’ insurance policy.

32

Cash flows from investing activities

Our investing activities for all periods presented consisted of capital expenditures for property, equipment and software in support of the growth of our business. For the nine-month period ended September 30, 2020, our investing activities also included $0.3 million of cash paid to Riverbed Technology, Inc. for the final payment of contingent consideration related to the acquisition of the Xirrus Wi-Fi business.

Cash flows from financing activities

During the nine-month period ended September 30, 2020, net cash used of $7.3 million was primarily due to $7.5 million repayment of principal due under our term loan facility offset by $0.2 million of proceeds received from share option exercises.

During the nine-month period ended September 30, 2021, net cash used of $21.5 million was primarily due the $19.6 million excess cash flow mandatory prepayment to the lenders under our term loan facility in the second quarter of 2021, along with the $5.0 million scheduled principal payments due under our term loan facility and $2.2 million for taxes paid from shares withheld in net settlement of taxes due on vesting of restricted shares issued to our employees, offset by proceeds received of $4.5 million from the exercise of share options and $0.8 million for the issuance of ordinary shares under our Employee Share Purchase Plan.

Debt

As of September 30, 2021, we had $30.7 million outstanding on our term credit facility and had $10.0 million available under our revolving credit facility. The interest rate in effect on the term credit facility at September 30, 2021 was 5.25%. We made a mandatory prepayment in the second quarter of 2021 of $19.6 million in accordance with the excess cash flow provision in our term loan facility which will be applied to the scheduled principal payments over the next four quarters, with the next payment due in the fourth quarter of 2022. The Company is still required to pay interest quarterly on the outstanding balance and has the option of prepaying against the principal during the remaining term of the facility without penalty. Our term loan facility matures on December 21, 2022, at which time the outstanding principal will be due. Refer to Note 7 – Debt, to our unaudited condensed consolidated financial statements in Part I of this Form 10-Q for additional information.

Contractual Obligations and Commercial Commitments

For the three-month period ended September 30, 2021, there has been no material change to the contractual obligations and commercial commitments disclosed in Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2020.

Off-balance sheet arrangements

We do not engage in transactions that generate relationships with unconsolidated entities or financial partnerships, such as entities often referred to as variable interest entities, structured finance, or special purpose entities, as part of our ongoing business.  Accordingly, our operating results, financial condition and cash flows are not subject to off-balance sheet risks.

Recent accounting pronouncements

We have reviewed all recently issued accounting standards and have disclosed in Note 1 in this Quarterly Report on Form 10-Q the results of our review and assessment of the impact on the standards on our consolidated financial statements.

Significant Accounting Estimates

Our consolidated financial statements and the related notes thereto are prepared in accordance with U.S. GAAP.  The preparation of these financial statements requires our management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, costs and expense and related disclosures. Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these judgments and estimates under different assumptions or conditions and any such differences may be material. We believe that the accounting policies discussed below are critical to understanding our historical and future performance, as these policies relate to the more significant areas involving management’s judgments and estimates.

During the three-month period ended September 30, 2021, there were no significant changes to our critical accounting policies and estimates. Please refer to Management’s Discussion and Analysis of Financial Condition and Results of Operations contained in Part II, Item 7 of our Annual Report on Form 10-K for our fiscal year ended December 31, 2020, filed on March 1, 2021, for a more complete discussion of our critical accounting policies and estimates.

33

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

Excluding the impact of changes in interest rates and the uncertainty in the global financial markets, there have been no material changes to our market risk for the three-month period ended September 30, 2021.  We conduct business in all parts of the world and are thereby exposed to market risks related to fluctuations in foreign currency exchange rates.  The U.S. dollar is the single largest currency in which our revenue contracts are denominated.  Any decline in the value of local foreign currencies against the U.S. dollar results in our products and services being more expensive to a potential foreign customer.  In those instances where our goods and services have already been sold, receivables may be more difficult to collect.  Additionally, in jurisdictions where the revenue contracts are denominated in U.S. dollars and operating expenses are incurred in the local currency, any decline in the value of the U.S. dollar will have an unfavorable impact to operating margins.  We have not entered into any foreign currency hedging transactions.  We do not purchase or hold any derivative financial instruments for speculation or arbitrage.

We do not hold any cash in any investment accounts and all cash is deposited with financial institutions that management believes are of high credit quality.  The Company’s cash consists primarily of U.S. dollar denominated demand accounts.

We had $30.7 million of debt outstanding on our term loan facility and $0.0 million of debt outstanding on our revolving credit facility as of September 30, 2021 under our Credit Agreement.  The Company is exposed to interest rate risk from fluctuations in the US LIBOR rate that is a component of the interest rate used to calculate interest expense on the debt.  Interest accrues on the outstanding principal amount of the term loan on a quarterly basis and is equal to a base rate of the higher of (a) 1.25% per annum or (b) the rate per annum determined by reference to the 1-, 2-, 3- or 6-month US Dollar LIBOR rate as selected by the Company, plus an applicable margin of 4.75%, 4.25% or 4.00% as determined by our financial performance as measured by the consolidated leverage ratio.  The rate on both the term loan and revolving credit facility was 5.25% on September 30, 2021.  A hypothetical 100-basis point increase in interest rates, and assuming a constant base rate, would result in an additional $0.3 million in interest expense related to the external debt per year.

In July 2017, the head of the United Kingdom Financial Conduct Authority, or FCA, announced plans to phase out the use of LIBOR by the end of 2021. In May 2021, the FCA confirmed the 1 week and 2-month US Dollar LIBOR rates will cease on December 31, 2021, but the remaining US Dollar LIBOR rates will not cease until June 30, 2023. At this time, no consensus exists as to what rate or rates may become acceptable alternatives to LIBOR and we are unable to predict the effect of any such alternatives on our current interest rate.

For a discussion of current market conditions resulting from the business shut downs and other restrictions resulting from government efforts to combat the impact of the COVID-19 pandemic, refer to Part I, Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and to Part II, Item 1A, “Risk Factors”.

There have been no other material changes in our market risk since December 31, 2020.

Item 4. Controls and Procedures.

Evaluation of disclosure controls and procedures

Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities and Exchange Act of 1934, as amended, or the Exchange Act), as of September 30, 2021, the end of the period covered by this Quarterly Report on Form 10-Q.  Based on such evaluation, our principal executive officer and principal financial officer have concluded that, as of such date, our disclosure controls and procedures are effective at a reasonable assurance level.

Changes in internal control

There were no changes in our internal control over financial reporting identified in management’s evaluation pursuant to Rules 13a-15(e) and 15d-15(e) of the Exchange Act during the period covered by this Quarterly Report on Form 10-Q that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitations on effectiveness of controls and procedures

None.

34

PART II—OTHER INFORMATION

Item 1. Legal Proceedings.

Third parties may from time to time assert legal claims against us. Our industry is characterized by vigorous protection and pursuit of intellectual property rights. A number of companies hold a large number of patents that may cover technology necessary to our products. We have in the past received and expect to continue to receive claims by third parties that we infringe their intellectual property rights. In the opinion of management, we believe we have established adequate accruals pursuant to U.S. generally accepted accounting principles for any expected future liability with respect to pending lawsuits, claims and proceedings, where the nature and extent of any such liability can be reasonably estimated based on presently available information. However, there can be no assurance that the final resolution of any existing or future lawsuits, claims or proceedings will not have a material adverse effect on our business, results of operations, financial conditions, or cash flows.

For additional information, see Note 15 – Commitments and contingencies in the Notes to the Condensed Consolidated Financial Statements in this Quarterly Report on Form 10-Q and Part I, Item 3. Legal Proceedings in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020.

Item 1A. Risk Factors.

There have been no material changes to the risk factors as disclosed in Item 1A of our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 except as discussed below. Additional risk and uncertainties, including risks and uncertainties not presently known to us, or that we currently deem immaterial, could also have an adverse effect on our business, financial condition and/or results of operations.

We face risks related to actual or threatened health epidemics and other outbreaks, which could significantly disrupt our manufacturing, sales and other operations.

Our business could be adversely impacted by the effects of a widespread outbreak of contagious disease, such as COVID-19. Although the outbreak of COVID-19 has resulted and is likely to continue to result in disruption to our business and operations as well as the operations of our customers and suppliers, the severity of the impact has lessened, and our markets are recovering as the need for additional connectivity grows to meet the needs of a remote workforce and remote education.

In addition, a pandemic or other health crisis could impact our supply operations; for example, as a result of the COVID -19 pandemic, one of our mechanical suppliers ceased operating, causing us to move production to an alternate supplier, and we are working with other suppliers who have experienced component part shortages due to global capacity constraints, particularly of chipsets and other semiconductor components, that have caused lead times for our products to increase.  The majority of our products are manufactured at contract manufacturers located outside the U.S., and one of our primary distribution centers for the sale and distribution of some of our products is a third-party logistics provider in China. Previously, in an effort to halt the outbreak of COVID-19, the Chinese government placed significant restrictions on travel within China, leading to extended business closures, including closures at our third-party manufacturers.  Although most of the restrictions on operations of our third-party manufacturers and other suppliers have been lifted or eased, our suppliers and third-party manufacturers could continue to be disrupted by worker absenteeism, quarantines, office and factory closures, disruptions to ports and other shipping infrastructure, or other travel or health-related restrictions and such restrictions could spread to other locations where we outsource manufacture or distribution of our products if the virus and its variants continues to spread or resurge. If our supply chain operations are affected or are curtailed by the outbreak of diseases such as COVID-19, our supply chain, manufacturing and product shipments will be delayed, which could adversely affect our business, operations and customer relationships.  We may need to seek alternate sources of supply which may be more expensive, unavailable or may result in delays in shipments to us from our supply chain and subsequently to our customers. Further, if our distributors’ or end user customers’ businesses are similarly affected, they might delay or reduce purchases from us, which could adversely affect our results of operations.

In addition, freight and logistics constraints caused in part by restrictions imposed by governments to combat the COVID-19 pandemic and additionally due to container and carriage shortages, have resulted in increased costs and constrained available transport, for us and our channel partners, all at a time when global demand has increased.  If our supply chain operations continue to be affected or are curtailed by the outbreak of diseases such as COVID-19, our supply chain, manufacturing and product shipments will be delayed, which could adversely affect our business, operations and customer relationships. We have sought and may continue to seek alternate sources of supply which may be more expensive, unavailable or may result in delays in shipments to us and from our supply chain and subsequently to our customers.

We are conducting business with substantial modifications to employee travel, employee work locations, and virtualization or cancellation of certain sales and marketing events, among other modifications. Our business is highly dependent on travel of our sales, operations, quality and technical support, and other managers and employees. Limitations placed on travel globally could significantly

35

limit our ability to market our products, establish relationships with new customers, and manage post-contract support and maintenance activities. Other companies as well as many governments have imposed significant restrictions on business operations and other precautionary and preemptive actions to address COVID-19, and they may take further actions that cause us or our customers or suppliers to alter their normal business operations. We will continue to actively monitor the situation and may take further actions that alter our business operations as may be required by federal, state or local authorities, or that we determine are in the best interest of our employees, customers, partners, suppliers and shareholders. Any such alterations or modifications may adversely impact our business, our customers and prospects, or our financial results.

The extent to which the COVID-19 pandemic will impact our business and financial results going forward will be dependent on future developments such as the length and severity of the crisis, the potential resurgence of COVID-19 and its variants in the future, future government actions in response to the crisis, the acceptance and effectiveness of the COVID-19 vaccines and the overall impact of the COVID-19 pandemic on the global economy and capital markets, among many other factors, all of which remain highly uncertain and unpredictable. We cannot at this time quantify or forecast the business impact of COVID-19, and there can be no assurance that the COVID-19 pandemic will not have a material and adverse effect on our business, financial results and financial condition. In addition, the COVID-19 pandemic increases the likelihood and potential severity of other risks described in our risks set forth in the “Risk Factors” section of our Annual Report on Form 10-K.

Because some of the key components in our products come from sole or limited sources of supply, we are susceptible to supply shortages, extended lead times or supply changes, which could disrupt or delay our scheduled product deliveries to our end customers and may result in the loss of sales and end customers.

We purchase components, directly or through our contract manufacturers, from third parties that are necessary for the manufacture of our products. Our ability to manage our supply chain may also be adversely affected by other factors including shortages of, and extended lead times for, components used to manufacture our products, a reduction or interruption of supply, prioritization of component shipments to other vendors, cessation of manufacturing of such components by our suppliers and geopolitical conditions such as the U.S. trade war with China and the impact of public health epidemics like the COVID-19 pandemic. Insufficient component supply, or any increases in the time required to manufacture our products, have and may continue to lead to inventory shortages that could result in increased customer lead times for our products, delayed revenue or loss of sales opportunities altogether as potential end customers turn to competitors’ products that are more readily available.  Shortages in the supply of components or other supply disruptions, including, without limitations, due to reductions in supply as a result of COVID-19 or as a result of the current global shortage of chipsets and other semiconductor components, may not be predicted in time to design-in different components or qualify other suppliers. Qualifying new suppliers to compensate for such shortages may be time-consuming and costly and may increase the likelihood of errors in design or production. Similar delays may occur in the future.

Certain components are currently and may in the future be in short supply. In particular, semiconductor chips and merchant silicon and semiconductor related components are currently in high demand with limited supply, which is resulting in significantly longer than usual lead times and significantly increased costs for these components.  We have encountered, and are likely in the future to encounter, shortages and delays in obtaining these or other components, and this has and could continue to have a material adverse effect on our ability to meet customer orders and cause our revenues to decline. In addition, such shortages or delays have and could continue to result in increased component and delivery costs.  

We use our forecast of expected demand to determine our material requirements. Lead times for materials and components we order vary significantly, and depend on factors such as the specific supplier, contract terms and demand for a component at a given time. If forecasts exceed orders, we may have excess and/or obsolete inventory, which could have a material adverse effect on our business, operating results and financial condition. If orders exceed forecasts, or available supply, we may have inadequate supplies of certain materials and components, which could have a material adverse effect on our ability to meet customer delivery requirements and to recognize revenue. If we are unable to pass component price increases along to our end customers or maintain stable pricing, our gross margins could be adversely affected and our business, financial condition, results of operations and prospects could suffer.

In order to reduce manufacturing lead times and plan for adequate component supply, from time to time, we may issue purchase orders for components and products that are non-cancelable and non-returnable. In addition, we may purchase components and products that have extended lead teams to ensure adequate supply to support long-term customer demand and mitigate the impact of supply disruptions.

36

Logistics challenges have and may continue to impact our operations as well, as container shortages continue to lengthen availability of containers and carriage, resulting in increases in relevant freight costs, all at a time when global demand has increased. Ports have and may continue to experience increasing lead times with delays in the container freight market as port delays, worker shortages and the impact of COVID-19 impact the ability to import and export goods, particularly from China, resulting in an increase in logistics and freight costs.  These logistics and freight challenges and increasing costs could have a material adverse effect on our ability to meet customer delivery requirements, result in increased costs and adversely affect our business, financial condition, results of operations and prospects.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

Not applicable.

Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

Not applicable.

Item 5. Other Information.

Not applicable.

37

Item 6. Exhibits.

We have filed the exhibits listed on the accompanying Exhibit Index, which is incorporated herein by reference.

EXHIBIT INDEX

Exhibit Number	Description
31.1*	Certification of Chief Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification of Chief Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2*	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the inline XBRL document
101.SCH	Inline XBRL Taxonomy Extension Schema
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase
104	Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

* Filed herewith.

38

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Cambium Networks Corporation
Date: November 10, 2021	By:	/s/ Atul Bhatnagar
		Atul Bhatnagar
		President and Chief Executive Officer
Date: November 10, 2021	By:	/s/ Stephen Cumming
		Stephen Cumming
		Chief Financial Officer

39

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Atul Bhatnagar, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Cambium Networks Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: November 10, 2021	By:	/s/ Atul Bhatnagar
		Atul Bhatnagar
		Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Stephen Cumming, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Cambium Networks Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  November 10, 2021	By:	/s/ Stephen Cumming
		Stephen Cumming
		Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Cambium Networks Corporation (the “Company”) on Form 10-Q for the period ended September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:  November 10, 2021	By:	/s/ Atul Bhatnagar
		Atul Bhatnagar
		Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Cambium Networks Corporation (the “Company”) on Form 10-Q for the period ended September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 10, 2021	By:	/s/ Stephen Cumming
		Stephen Cumming
		Chief Financial Officer

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	Sep. 30, 2021	Nov. 08, 2021
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Document Type	10-Q
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Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
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Entity Registrant Name	CAMBIUM NETWORKS CORP
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Current Fiscal Year End Date	--12-31
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Entity Small Business	false
Entity Emerging Growth Company	true
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Entity Common Stock, Shares Outstanding		26,645,954
Entity Current Reporting Status	Yes
Entity File Number	001-38952
Entity Tax Identification Number	00-0000000
Entity Address, Address Line One	3800 Golf Road
Entity Address, Address Line Two	Suite 360
Entity Address, City or Town	Rolling Meadows
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60008
City Area Code	345
Local Phone Number	943-3100
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Title of 12(b) Security	Ordinary shares, $0.0001 par value
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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets
Cash	$ 58,596	$ 62,472
Receivables, net of allowances of $919 and $723	70,584	58,114
Inventories, net	28,789	33,962
Recoverable income taxes	1,262	1,420
Prepaid expenses	5,239	4,143
Other current assets	4,408	5,024
Total current assets	168,878	165,135
Noncurrent assets
Property and equipment, net	10,296	7,535
Software, net	5,000	3,438
Operating lease assets	5,227	5,083
Intangible assets, net	11,240	12,895
Goodwill	9,842	9,842
Deferred tax assets, net	7,961	1,537
Other noncurrent assets	568	288
TOTAL ASSETS	219,012	205,753
Current liabilities
Accounts payable	24,882	30,859
Accrued liabilities	18,827	20,160
Employee compensation	13,465	14,911
Current portion of long-term external debt, net		29,201
Deferred revenues	7,257	6,471
Other current liabilities	5,586	6,009
Total current liabilities	70,017	107,611
Noncurrent liabilities
Long-term external debt, net	30,249	24,957
Deferred revenues	5,308	4,448
Noncurrent operating lease liabilities	3,999	3,332
Deferred tax liabilities, net	9	9
Other noncurrent liabilities	1,978	2,009
Total liabilities	111,560	142,366
Shareholders' equity
Share capital; $0.0001 par value; 500,000,000 shares authorized at December 31, 2020 and September 30, 2021; 26,126,672 shares issued and 26,034,526 outstanding at December 31, 2020 and 26,786,201 shares issued and 26,639,483 outstanding at September 30, 2021	3	3
Additional paid in capital	120,603	109,837
Treasury shares, at cost, 92,146 shares at December 31, 2020 and 146,718 shares at September 30, 2021	(3,663)	(1,090)
Accumulated deficit	(8,805)	(44,799)
Accumulated other comprehensive loss	(686)	(564)
Total shareholders' equity	107,452	63,387
TOTAL LIABILITIES AND EQUITY	$ 219,012	$ 205,753

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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Allowances for receivables	$ 723	$ 919
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	26,786,201	26,126,672
Common stock, shares, outstanding	26,639,483	26,034,526
Treasury stock, shares	146,718	92,146

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Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenues	$ 75,920	$ 72,971	$ 257,144	$ 195,654
Cost of revenues	39,900	36,902	130,862	98,481
Gross profit	36,020	36,069	126,282	97,173
Operating expenses
Research and development	12,082	10,213	36,302	31,326
Sales and marketing	9,938	8,293	29,696	26,632
General and administrative	6,640	8,604	22,065	21,675
Depreciation and amortization	1,548	1,643	4,707	5,038
Total operating expenses	30,208	28,753	92,770	84,671
Operating income	5,812	7,316	33,512	12,502
Interest expense, net	752	1,259	3,208	4,129
Other expense, net	88	318	209	80
Income before income taxes	4,972	5,739	30,095	8,293
Provision (benefit) for income taxes	355	144	(5,899)	224
Net income	$ 4,617	$ 5,595	$ 35,994	$ 8,069
Earnings per share
Basic	$ 0.17	$ 0.22	$ 1.37	$ 0.31
Diluted	$ 0.16	$ 0.21	$ 1.25	$ 0.31
Weighted-average number of shares outstanding to compute net earnings per share
Basic	26,540,843	25,691,357	26,342,113	25,683,969
Diluted	28,639,177	26,346,673	28,705,677	25,867,164

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Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based compensation included in costs and expenses	$ 2,076	$ 954	$ 5,584	$ 2,705
Cost of Revenues
Share-based compensation included in costs and expenses	39	16	108	51
Research and Development
Share-based compensation included in costs and expenses	834	396	2,193	1,186
Sales and Marketing
Share-based compensation included in costs and expenses	540	251	1,374	726
General and Administrative
Share-based compensation included in costs and expenses	$ 663	$ 291	$ 1,909	$ 742

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Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 4,617	$ 5,595	$ 35,994	$ 8,069
Other comprehensive income (loss)
Foreign currency translation adjustment	(38)	103	(122)	(301)
Comprehensive income	$ 4,579	$ 5,698	$ 35,872	$ 7,768

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Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Share Capital	Additional Paid in Capital	Treasury Shares	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2019	$ 39,929	$ 3	$ 104,773	$ (1,094)	$ (63,374)	$ (379)
Beginning balance, shares at Dec. 31, 2019		25,673,000
Net income (loss)	8,069				8,069
Share-based compensation	2,705		2,705
Issuance of vested shares		24,000
Treasury shares withheld for net settlement	31			31
Treasury shares withheld for net settlement, shares		(10,000)
Share options exercised	163		163
Share options exercised, shares		14,000
Foreign currency translation adjustment	(301)					(301)
Ending balance at Sep. 30, 2020	50,596	$ 3	107,641	(1,063)	(55,305)	(680)
Ending balance, shares at Sep. 30, 2020		25,701,000
Beginning balance at Jun. 30, 2020	43,796	$ 3	106,524	(1,048)	(60,900)	(783)
Beginning balance, shares at Jun. 30, 2020		25,684,000
Net income (loss)	5,595				5,595
Share-based compensation	954		954
Issuance of vested shares		4,000
Treasury shares withheld for net settlement	(15)			(15)
Treasury shares withheld for net settlement, shares		(1,000)
Share options exercised	163		163
Share options exercised, shares		14,000
Foreign currency translation adjustment	103					103
Ending balance at Sep. 30, 2020	50,596	$ 3	107,641	(1,063)	(55,305)	(680)
Ending balance, shares at Sep. 30, 2020		25,701,000
Beginning balance at Dec. 31, 2020	63,387	$ 3	109,837	(1,090)	(44,799)	(564)
Beginning balance, shares at Dec. 31, 2020		26,034,526
Net income (loss)	35,994				35,994
Share-based compensation	5,061		5,061
Issuance of ordinary shares	1,164		1,164
Issuance of ordinary shares, shares		39,000
Issuance of vested shares		195,000
Treasury shares withheld for net settlement	(2,573)			(2,573)
Treasury shares withheld for net settlement, shares		(55,000)
Share options exercised	$ 4,541		4,541
Share options exercised, shares	425,184	425,184
Foreign currency translation adjustment	$ (122)					(122)
Ending balance at Sep. 30, 2021	107,452	$ 3	120,603	(3,663)	(8,805)	(686)
Ending balance, shares at Sep. 30, 2021		26,639,483
Beginning balance at Jun. 30, 2021	100,178	$ 3	117,521	(3,276)	(13,422)	(648)
Beginning balance, shares at Jun. 30, 2021		26,503,000
Net income (loss)	4,617				4,617
Share-based compensation	1,886		1,886
Issuance of vested shares		34,000
Treasury shares withheld for net settlement	(387)			(387)
Treasury shares withheld for net settlement, shares		(11,000)
Share options exercised	1,196		1,196
Share options exercised, shares		113,000
Foreign currency translation adjustment	(38)					(38)
Ending balance at Sep. 30, 2021	$ 107,452	$ 3	$ 120,603	$ (3,663)	$ (8,805)	$ (686)
Ending balance, shares at Sep. 30, 2021		26,639,483

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 35,994	$ 8,069
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	2,526	2,817
Amortization of software and intangible assets	2,720	2,688
Amortization of debt issuance costs	663	409
Share-based compensation	5,584	2,705
Deferred income taxes	(6,424)	(684)
Provision for inventory excess and obsolescence	(684)	1,933
Other	(176)	571
Change in assets and liabilities:
Receivables	(12,489)	7,931
Inventories	5,857	10,567
Prepaid expenses	(1,103)	1,263
Accounts payable	(7,110)	175
Accrued employee compensation	(1,786)	5,313
Accrued liabilities	(128)	(147)
Other assets and liabilities	951	(1,791)
Net cash provided by operating activities	24,395	41,819
Cash flows from investing activities:
Purchase of property and equipment	(4,197)	(2,432)
Purchase of software	(2,591)	(921)
Cash paid for acquisition		(334)
Net cash used in investing activities	(6,788)	(3,687)
Cash flows from financing activities:
Proceeds from issuance of revolver debt		10,000
Repayment of term loan	(24,572)	(7,500)
Repayment of revolver debt		(10,000)
Issuance of ordinary shares	833
Taxes paid from shares withheld	(2,254)	31
Proceeds from share option exercises	4,541	163
Net cash used in financing activities	(21,452)	(7,306)
Effect of exchange rate on cash	(31)	(52)
Net increase (decrease) in cash	(3,876)	30,774
Cash, beginning of period	62,472	19,346
Cash, end of period	58,596	50,120
Supplemental disclosure of cash flow information:
Income taxes paid	573	1,626
Interest paid	$ 1,828	$ 3,138

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Business and Significant Accounting Policies

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Business and significant accounting policies

Note 1. Business and significant accounting policies

Business

Cambium Networks Corporation (“Cambium” or “Cambium Networks” or the “Company”), incorporated under the laws of the Cayman Islands, is a holding company whose principal operating entities are Cambium Networks, Ltd. (UK), Cambium Networks, Inc. (USA), and Cambium Networks Private Limited (India).  On October 28, 2011, Cambium acquired the point-to-point (“PTP”) and point-to-multi-point (“PMP”) businesses from Motorola Solutions, Inc. in an acquisition funded by investment funds affiliated with Vector Capital. Cambium Networks became the renamed entity subsequent to the acquisition.  Cambium Networks completed an initial public offering of its ordinary shares and listed its ordinary shares on The NASDAQ Global Market in June 2019.

Cambium Networks Corporation and its wholly owned subsidiaries provide fixed wireless broadband and Wi-Fi networking infrastructure solutions that work for businesses, communities and cities worldwide. Cambium Networks’ radios are deployed to connect people, places and things with a unified wireless fabric that spans multiple standards and frequencies of fixed wireless and Wi-Fi, all managed centrally via the cloud. The Company’s solutions are deployed in networks by service providers, enterprise, industrial and government connectivity solutions in urban, suburban and rural environments.

Basis of Presentation

The unaudited condensed consolidated financial statements include the accounts of Cambium Networks Corporation and its wholly-owned subsidiaries.  All intercompany balances and transactions have been eliminated.  The condensed consolidated financial statements as of September 30, 2021, and for the three-month and nine-month periods ended September 30, 2020 and 2021, and the related notes are unaudited. The unaudited condensed consolidated financial statements have been prepared on the same basis as the annual audited consolidated financial statements, and, in the opinion of management, reflect all adjustments, which comprise only normal recurring adjustments necessary to state fairly the Company’s financial position as of September 30, 2021 and results of operations for the three-month and nine-month periods ended September 30, 2020 and 2021 and cash flows for the nine-month periods ended September 30, 2020 and 2021. The condensed consolidated balance sheet as of December 31, 2020 has been derived from the audited financial statements at that date.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principals generally accepted in the United States (“U.S. GAAP”) have been condensed or omitted.  The condensed consolidated financial statements contained herein should be read in conjunction with the consolidated financial statements and related notes thereto for the year ended December 31, 2020 included in the Company’s annual report on Form 10-K and filed with the SEC on March 1, 2021.  The results of operations for the three-month and nine-month periods ended September 30, 2021 are not necessarily indicative of the operating results to be expected for the full year.

The Company has reclassified certain prior period amounts in the condensed consolidated statement of cash flows to conform to the current period’s presentation. Specifically, within the condensed consolidated statements of cash flows, the provision for inventory excess and obsolescence has been reclassified from “Other” to “Provision for inventory excess and obsolescence” and prepaid expenss has been reclassified from “Other assets and liabilities” to “Prepaid expenses”. This change in classification does not affect previously reported cash flows from operating activities in the condensed consolidated statements of cash flows.

Update to Significant Accounting Policies

There have been no material changes to the Company’s signifiant accounting policies disclosed in the 2020 Form 10-K, Part II, Item 8.

Recently adopted accounting pronouncements

  In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This update provides optional expedients and exceptions for applying generally accepted accounting principles to certain contract modification and hedging relationships that reference London Inter-bank Offered Rate (LIBOR) or another reference rate that is expected to be discontinued. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022, when the reference rate replacement activity is expected to be completed. The adoption of ASU 2020-04 will not have an impact on the condensed consolidated financial statements until the debt agreement is modified to no longer reference LIBOR, and is not expected to be material.

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, as part of its Simplification Initiative to reduce the cost and complexity in accounting for income taxes. ASU 2019-12 removed certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period,

and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 also amended other aspects of the guidance to help simplify and promote consistent application of GAAP. The Company adopted this ASU effective January 1, 2021 on a prospective basis. The adoption of ASU 2019-12 did not have a material impact on the condensed consolidated financial statements.

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Fair Value

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair value

Note 2. Fair value

The fair value of the Company’s external debt under its Credit Agreement (as defined below) approximates its carrying value because the terms and conditions approximate the terms and conditions of current market debt available to the Company. Due to the floating interest rate the debt is classified as Level 2 of the fair value hierarchy. The external debt was estimated based on the current rates offered to the Company for debt with the same remaining maturities. The fair value of the Company’s Credit Agreement was $55.3 million and $30.7 million as of December 31, 2020 and September 30, 2021, respectively.

The fair value of cash approximates its carrying value (Level 1 of the fair value hierarchy)

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Balance Sheet Components

9 Months Ended

Sep. 30, 2021

Balance Sheet Related Disclosures [Abstract]

Balance sheet components

Note 3. Balance sheet components

Inventories, net

Inventories, net consisted of the following (in thousands):

	December 31,			September 30,
	2020			2021
				(unaudited)
Finished goods	$	35,241		$	30,617
Raw materials		4,576			3,044
Gross inventory		39,817			33,661
Less: Excess and obsolete provision		(5,855	)		(4,872	)
Inventories, net	$	33,962		$	28,789

Accrued liabilities

Accrued liabilities consisted of the following (in thousands):

	December 31,		September 30,
	2020		2021
			(unaudited)
Accrued goods and services	$	7,937	$	7,345
Accrued inventory purchases		4,830		4,638
Accrued customer rebates		7,380		6,844
Other		13		—
Accrued liabilities	$	20,160	$	18,827

Accrued warranty

Provisions for warranty claims are primarily related to our hardware products and are recorded at the time products are sold. The change to accrued warranty was as follows (in thousands):

	Year ended December 31,			Nine months ended September 30,
	2020			2021
					(unaudited)
Beginning balance	$	706		$	1,714
Warranties assumed due to acquisition		1,174			—
Fulfillment of assumed acquisition warranty		(482	)		(207	)
Provision increase, net		316			227
Ending balance	$	1,714		$	1,734

At September 30, 2021, $1.2 million is included in Other current liabilities and $0.5 million is included in Other noncurrent liabilities on the Company’s condensed consolidated balance sheet.

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Property and equipment

9 Months Ended

Sep. 30, 2021

Property Plant And Equipment [Abstract]

Property and Equipment

Note 4. Property and equipment

Property and equipment, net consisted of the following (in thousands):

		December 31,			September 30,
	Useful Life	2020			2021
					(unaudited)
Equipment and tooling	3 to 5 years	$	24,367		$	28,924
Computer equipment	3 to 5 years		3,137			3,620
Furniture and fixtures	10 years		745			835
Leasehold improvements	2 to 3 years		282			384
Total cost			28,531			33,763
Less: Accumulated depreciation			(20,996	)		(23,467	)
Property and equipment, net		$	7,535		$	10,296

Total depreciation expense was $0.9 million and $0.8 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $2.8 million and $2.5 million for the nine-month periods ended September 30, 2020 and 2021, respectively.

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Software

9 Months Ended

Sep. 30, 2021

Research And Development [Abstract]

Software

Note 5. Software

Software consisted of the following (in thousands):

		December 31, 2020							September 30, 2021
	Useful Life	Gross carrying amount		Accumulated amortization			Net balance		Gross carrying amount		Accumulated amortization			Net balance
									(unaudited)		(unaudited)			(unaudited)
Acquired and    Software for    internal use	3 to7 years	$	15,680	$	(14,214	)	$	1,466	$	15,729	$	(14,737	)	$	992
Software marketed for    external sale	3 years		3,411		(1,439	)		1,972		5,986		(1,978	)		4,008
Total		$	19,091	$	(15,653	)	$	3,438	$	21,715	$	(16,715	)	$	5,000

Amortization of acquired and internal use software is computed using the straight-line method over an estimated useful life of generally three to seven years.  Amortization expense recognized on acquired and internal use software is reflected in depreciation and amortization in the condensed consolidated statements of operations.  Amortization expense was $0.2 million and $0.1 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.6 million and $0.5 million for the nine-month periods ended September 30, 2020 and 2021, respectively.

Amortization expense recognized on software to be sold or marketed externally was $0.2 million and $0.2 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.5 million and $0.5 million for the nine-month periods ended September 30, 2020 and 2021 and is included in cost of revenues on the condensed consolidated statements of operations.

Based on capitalized software assets at September 30, 2021, estimated amortization expense in future fiscal years is as follows (unaudited and in thousands):

Year ending December 31,	Acquired and internal use software		Software marketed for external use		Total
2021 (October - December)	$	167	$	299	$	466
2022		428		1,249		1,677
2023		179		1,363		1,542
2024		76		847		923
2025		68		250		318
Thereafter		74		—		74
Total amortization	$	992	$	4,008	$	5,000

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Goodwill and intangible assets

9 Months Ended

Sep. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and intangible assets

Note 6. Goodwill and Intangible Assets

When the Company acquired the trade assets of Motorola Solutions, Inc.’s wireless point-to-point and point-to-multi-point businesses in 2011, the transaction generated goodwill and certain intangible assets.  The goodwill associated with this transaction was recorded by Cambium Networks Corporation and allocated to Cambium Networks, Ltd. and Cambium Networks, Inc. using a revenue and asset allocation method. Although goodwill has been allocated to two operating subsidiaries, as noted in Note 15 – Segment information, the Company operates as one operating segment and one reporting unit and therefore, goodwill is reported, and impairment testing performed, at the Cambium Networks Corporation consolidated level.

There was no change in the carrying amount of goodwill during the nine-month period ended September 30, 2021 (unaudited).

The Company tests goodwill and intangible assets for impairment annually on December 31 and more frequently if impairment indicators exist. Accordingly, the Company performs quarterly qualitative assessments of significant events and circumstances such as a reporting unit’s historical and current results, assumptions regarding future performance, strategic initiatives and overall economic factors, including the impact of the current global outbreak of the coronavirus (or COVID-19) and macro-economic developments, to determine the existence of potential indicators of impairment and assess if it is more likely than not that the fair value of the reporting unit or intangible asset is less than their carrying value. If indicators of impairment are identified, a quantitative impairment test is performed.

Qualitative assessments for the quarter did not indicate the existence of impairment indicators. Based on the operating results for the nine-month period ended September 30, 2021 and other considerations, the Company believes that it is more likely than not that the enterprise value for its one reporting unit and the fair value of intangibles is still greater than their carrying values. Accordingly, no goodwill impairment indicators were present at September 30, 2021 that would necessitate an interim impairment assessment.  

The useful life, gross carrying value, accumulated amortization, and net balance for each major class of definite-lived intangible assets at each balance sheet date were as follows (in thousands):

		December 31, 2020							September 30, 2021
	Useful Life	Gross carrying amount		Accumulated amortization			Net balance		Gross carrying amount		Accumulated amortization			Net balance
									(unaudited)		(unaudited)			(unaudited)
Unpatented    technology	3 - 7 years	$	14,660	$	(14,375	)	$	285	$	14,660	$	(14,510	)	$	150
Customer    relationships	5 - 18 years		19,300		(7,128	)		12,172		19,300		(8,253	)		11,047
Patents	7 years		11,300		(11,300	)		—		11,300		(11,300	)		—
Trademarks	10 years		5,270		(4,832	)		438		5,270		(5,227	)		43
Total		$	50,530	$	(37,635	)	$	12,895	$	50,530	$	(39,290	)	$	11,240

Intangible assets are amortized over their expected useful life and none are expected to have a significant residual value at the end of their useful life.  Intangible assets amortization expense was $0.6 million and $0.6 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $1.7 million and $1.7 million for the nine-month periods ended September 30, 2020 and 2021.

Based on capitalized intangible assets as of September 30, 2021, estimated amortization expense amounts in future fiscal years are as follows (unaudited and in thousands):

Year ending December 31,	Amortization
2021 (October - December)	$	461
2022		1,603
2023		1,498
2024		1,498
2025		1,498
Thereafter		4,682
Total amortization	$	11,240

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Debt

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Debt

Note 7. Debt

As of September 30, 2021, the Company had $30.7 million outstanding under its current term loan facility and $0.0 million outstanding under its revolving credit facility. The Company has available $10.0 million under its revolving credit facility (unaudited).

The following table reflects the current and noncurrent portions of the external debt facilities at December 31, 2020 and September 30, 2021 (in thousands):

	December 31,			September 30,
	2020			2021
				(unaudited)
Term loan facility	$	55,250		$	30,678
Less debt issuance costs		(1,092	)		(429	)
Total debt		54,158			30,249
Less current portion of term facility		(29,747	)		-
Current portion of debt issuance costs		546			-
Total long-term external debt, net	$	24,957		$	30,249

Secured credit agreement

  The Company is currently operating under the Third Amendment (“Third Amendment”) to the December 21, 2017 credit agreement (as amended and restated, the “Credit Agreement”), which was entered into on June 28, 2019 with Silicon Valley Bank. Both the term loan facility and the revolving credit facility mature on December 21, 2022.

Interest accrues on the outstanding principal amount of the term loan on a quarterly basis and is equal to a base rate of the higher of (a) 1.25% per annum or (b) the rate per annum determined by reference to the 1-, 2-, 3- or 6-month US Dollar LIBOR rate as selected by the Company, plus an applicable margin of 4.75%, 4.25%, or 4.00% as determined by the Company’s performance as measured by the consolidated leverage ratio.  The rate on the term loan was 5.5% at December 31, 2020 and 5.25% at September 30, 2021. In addition to paying interest on the outstanding principal under the term loan facility, the Company is required to pay a commitment fee on the unutilized commitments under the revolving credit facility, quarterly in arrears. The Company is also required to pay letter of credit fees on the maximum amount available to be drawn under all outstanding letters of credit in an amount equal to the applicable margin on LIBOR-based borrowings under the revolving credit facility on a per annum basis, payable in arrears, as well as customer fronting fees for the issuance of letters of credit and agency fees.

Under the Third Amendment, the Company is required to make quarterly principal payments of $2.5 million, with the remaining principal due on maturity on December 21, 2022 The Company made a required prepayment in the second quarter of 2021 of $19.6 million in accordance with the excess cash flow provision in the Credit Agreement which was applied to the third quarter $2.5 million principal payment and will be applied to the scheduled principal payments over the next four quarters, with the next payment not due until the debt matures on December 21, 2022, at which time the remaining outstanding principal will be due. The Company is required to pay interest quarterly on the outstanding balance. The Company is permitted to voluntarily reduce the unutilized portion of the commitment amount and repay outstanding loans under the Credit Agreement at any time without premium or penalty, other than customary breakage costs with respect to LIBOR- based loans.

Maturities on the external debt outstanding at September 30, 2021 is as follows (unaudited and in thousands):

Year ending December 31,
2021 (October - December)	$	—
2022		30,678
Total	$	30,678

Borrowings under the Credit Agreement are secured by a first-priority lien on substantially all of the Company’s assets, the equity interests in the Company’s subsidiaries, and any intercompany debt. The Credit Agreement contains certain customary affirmative and negative covenants that are usual and customary for companies with similar credit ratings. As of September 30, 2021, the Company was in compliance with all affirmative and negative covenants (unaudited).

Net interest expense, including bank charges and amortization of debt issuance costs on the external debt, was $1.2 million and $0.7 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $4.1 million and $3.2 million for the nine-month periods ended September 30, 2020 and 2021, respectively. The nine-month period ended September 30, 2021 include $0.3 million of additional amortization of debt issuance costs associated with the excess cash flow payment.

Expected Discontinuation of LIBOR

In July 2017, the United Kingdom’s Financial Conduct Authority, or FCA, which regulates LIBOR, announced it will no longer compel banks to submit rates for the calculation of LIBOR after 2021. In May 2021, the FCA confirmed the 1 week and 2-month US Dollar LIBOR tenors will cease on December 31, 2021, but the remaining five US Dollar LIBOR tenors (overnight and 1, 3, 6 and 12 month) will not cease until June 30, 2023.  The base interest rate on the Company’s Credit Agreement may be determined by reference to the 1-, 2-, 3- or 6-month US Dollar LIBOR rate, as selected by the Company. The Credit Agreement matures on December 21, 2022, which is prior to the cessation of all tenors of the US Dollar LIBOR rate.

The Credit Agreement contemplates the discontinuation of LIBOR and provides options for the Company in such an event. The Company is evaluating the potential impact of a transition from LIBOR as an interest rate benchmark to other potential alternative reference rates. The Company will continue to actively assess the related opportunities and risks involved in this transition.

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Employee Benefit Plans

9 Months Ended

Sep. 30, 2021

Compensation And Retirement Disclosure [Abstract]

Employee benefit plans

Note 8. Employee benefit plans

The Company’s employee benefit plans currently consist of a retirement plan in the United States and a separate defined contribution plan in the UK.  The Company does not offer any other postretirement benefit plans, such as retiree medical and dental benefits or deferred compensation agreements to its employees or officers.

U.S. plan

U.S. employees that satisfy certain eligibility requirements, including requirements related to age and length of service, are eligible to participate in the Cambium Networks, Inc. 401(k) Plan. The plan is intended to qualify as a tax-qualified 401(k) plan so that contributions to the 401(k) plan, and income earned on such contributions, are not taxable to participants until withdrawn or distributed from the 401(k) plan. Under the 401(k) plan, each employee is fully vested in his or her deferred salary contributions. Employee contributions are held and invested by the plan’s trustee as directed by participants. Under the Cambium Networks, Inc. 401(k) Plan, the Company matches 100% of employee contributions to the 401(k) plan up to a maximum amount of 4% of eligible wages, which matching contributions are subject to vesting in equal annual increments over two years of service. All contributions, including the Company match, are made in cash. Contributions made by the Company under the Cambium Networks, Inc. 401(k) Plan were $0.3 million and $0.2 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.8 million and $1.0 million for the nine-month periods ended September 30, 2020 and 2021, respectively.

UK plan

UK employees who satisfy certain eligibility requirements are eligible to participate in the Cambium Networks Ltd. Stakeholder Pension Scheme, which is a qualified defined contribution plan.  Employees are eligible to participate on the first of the month following receipt of their enrollment form, and eligible employees are automatically enrolled in the plan at a default employee contribution rate of 3% of eligible compensation and a company contribution rate of 5% of the employee’s basic salary.  The Company contribution rate increases by 1% for each additional 1% that the employee contributes up to a maximum of 7%.  Company matching contributions vest immediately and employees are always vested in their own contributions.  All contributions, including the Company match, are made in cash and deposited in the participant’s account each pay period.  The total contributed by the Company under this plan was $0.1 million and $0.1 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.3 million and $0.3 million for the nine-month periods ended September 30, 2020 and 2021, respectively.   

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Other Expense, Net

9 Months Ended

Sep. 30, 2021

Other Income And Expenses [Abstract]

Other expense, net

Note 9. Other expense, net

Net other expense was $0.3 million and $0.1 million for the three-month periods ended September 30, 2020 and 2021, respectively, and $0.1 million and $0.2 million for the nine-month periods ended September 30, 2020 and 2021, respectively, and represents foreign exchange gains and losses.

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Share-Based Compensation

9 Months Ended

Sep. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-based compensation

Note 10. Share-based compensation

2019 Share incentive plan

In June 2019, the Company’s Board of Directors adopted, and its shareholders approved, the 2019 Share Incentive Plan (“2019 Plan”).  The 2019 Plan provides for the grant of incentive share options, nonqualified share options, share appreciation rights, restricted share awards (“RSAs”), restricted share units (“RSUs”), other share-based awards and performance awards.  The number of shares that were reserved for issuance under the 2019 Plan was 3,400,000, in addition to the 240,037 RSAs and RSUs the Company granted in substitution for unvested Class B Units or phantom units in Vector Cambium Holdings (Cayman), L.P. (“VCH L.P.”). The Class B Units and phantom units were exchanged for RSAs or RSUs in connection with the Company’s initial public offering (“IPO”), based on a price of $12.00 per share (“Recapitalization Awards”).  The share reserve under the 2019 Plan is automatically increased on the first day of each fiscal year, beginning with the fiscal year ended December 31, 2020 and continuing until, and including, the fiscal year ending December 31, 2029.  The number of shares added annually is equal to the lowest of 1,320,000 shares, 5% of the number of the Company’s shares outstanding on the first day of such fiscal year, or an amount determined by the Board of Directors. As a result, on March 1, 2021, the Company registered 1,301,726 additional shares that may be issued under the 2019 Plan.

The Company’s employees, officers, directors, consultants, and advisors are eligible to receive awards under the 2019 Plan.  Incentive share options, however, may only be granted to its employees.  Participants in the 2019 Plan will also consist of persons to whom Recapitalization Awards were granted.

The following table summarizes changes in the number of shares available for grant under the Company’s equity incentive plans during the nine-month period ended September 30, 2021 (unaudited):

	Number of shares
Available for grant at December 31, 2020		832,134
Added to 2019 Share Incentive Plan		1,301,726
RSUs granted		(259,615	)
Options granted		(116,035	)
Shares withheld in settlement of taxes and/or exercise price		54,572
Forfeitures		24,687
Available for grant at September 30, 2021		1,837,469

Share-based compensation

The following table shows total share-based compensation expense for the three-month and nine-month periods ended September 30, 2020 and 2021 (unaudited and in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Cost of revenues	$	16	$	39	$	51	$	108
Research and development		396		834		1,186		2,193
Sales and marketing		251		540		726		1,374
General and administrative		291		663		742		1,909
Total share-based compensation expense	$	954	$	2,076	$	2,705	$	5,584

For the three-month and nine-month periods ended September 30, 2021, the Company recorded share-based compensation expense of $2.1 million and $5.6 million, respectively. For the three-month and nine-month periods ended September 30, 2020, the Company recorded share-based compensation expense of $1.0 million and $2.7 million, respectively.

For the three-month periods ended September 30, 2020 and 2021, the Company recorded corresponding income tax benefits of $0.2 million and $0.6 million, respectively, and for the nine-month period ended September 30, 2020 and 2021, the Company recorded corresponding tax benefits of $0.5 million and $3.0 million, respectively.  

As of September 30, 2021, the Company estimates the pre-tax unrecognized compensation expense of $19.5 million, net of estimated forfeitures, related to all unvested share-based awards, including share options, restricted share units and restricted share awards will be recognized through the first quarter of 2025. The Company expects to satisfy the exercise of share options and future distributions of shares for restricted share units and restricted share awards by issuing new ordinary shares that have been reserved under the 2019 Plan.

The Company uses the Black-Scholes option pricing model to estimate the fair value of share options. The Company utilized a forfeiture rate of 8.2% during the nine-month period ended September 30, 2021 for estimating the forfeitures of share options and restricted share units granted.  

Share options

The following is a summary of option activity for the Company’s share incentive plans for the nine-month period ended September 30, 2021 (unaudited):

	Options			Weighted average exercise price		Weighted Average remaining contractual term (years)		Aggregate intrinsic value
Outstanding at December 31, 2020		3,164,185		$	11.24		8.8	$	43,793,890
Options granted		116,035		$	42.52		—	$	—
Options exercised		(425,184	)	$	10.68		—	$	—
Options forfeited		(21,312	)	$	11.00		—	$	—
Outstanding at September 30, 2021		2,833,724		$	12.61		8.2	$	67,564,369
Options exercisable at September 30, 2021		1,114,876		$	11.22		8.0	$	27,841,726
Options vested and expected to vest at September 30, 2021		2,761,432		$	12.60		8.2	$	65,844,785

Share options typically have a contractual term of ten years from grant date.

At September 30, 2021, the aggregate intrinsic value of options exercisable under the Company’s share incentive plans was $27.8 million.  The Company had 425,184 options exercised during the nine-month period ended September 30, 2021.

At September 30, 2021, there was $9.7 million in unrecognized pre-tax share-based compensation expense, net of estimated forfeitures, related to unvested share option awards. The unrecognized share-based compensation expense is expected to be recognized through the first quarter of 2025.

The fair value of options granted are estimated on the date of grant using the Black-Scholes option pricing model.  The fair value of share options is being amortized on a straight-line basis over the requisite service period of the awards.  The fair value of share options is estimated using the following weighted-average assumptions (unaudited):

	Nine Months Ended September 30,
	2020			2021
Expected dividend yield		—			—
Risk-free interest rate		0.39	%		1.14	%
Weighted-average expected volatility		50.0	%		50.9	%
Expected term (in years)		6.5			6.5
Weighted average grant-date fair value per share of options granted	$	7.56		$	21.36

Restricted shares

The following is a summary of restricted shares activity for the Company’s share incentive plans for the nine-month period ended September 30, 2021 (unaudited):

	Units			Weighted average grant date fair value
RSU and RSA balance at December 31, 2020		519,197		$	4.89
RSUs and RSAs granted		259,615		$	42.63
RSUs and RSAs vested		(194,757	)	$	4.95
RSUs and RSAs forfeited		(3,375	)	$	42.52
RSU and RSA balance at September 30, 2021		580,680		$	21.53
RSUs and RSAs expected to vest at September 30, 2021		580,680		$	21.53

During the nine-month period ended September 30, 2021, 259,615 RSUs were granted under the Company’s 2019 Share Incentive Plan and 194,757 RSUs and RSAs vested. The Company withheld 54,572 of those shares to pay the employees’ portion of the minimum payroll withholding taxes.

As of September 30, 2021, there was $9.8 million in unrecognized pre-tax compensation expense, net of estimated forfeitures, related to unvested restricted share awards and restricted share units. The unrecognized compensation expense is expected to be recognized through the third quarter of 2025.

Employee share purchase plan

In June 2019, the Company’s Board of Directors adopted, and its shareholders approved, the Employee Share Purchase Plan (“ESPP”).  The ESPP was effective on June 25, 2019, and the current offering period of six months commenced on July 1, 2021 and runs through December 31, 2021. The purchase price of the shares is 85% of the lower of the fair market value of the Company’s ordinary shares on the first trading day of the offering period and the purchase date. Upon adoption of the plan, a total of 550,000 shares were made available under the ESPP.  Per the ESPP, the number of shares that will be available for sale also includes an annual increase on the first day of each fiscal year beginning in 2020, equal to the lesser of:  275,000 shares, 1% of the outstanding shares as of the last day of the immediately preceding fiscal year, or such other amount as the administrator may determine. The Company registered 256,730 and 260,345 additional shares on March 24, 2020 and March 1, 2021, respectively, for a total of 1,067,075 shares that may be issued under the ESPP.

For the three-month and nine-month periods ended September 30, 2021, the Company recognized $0.2 million and $0.5 million, respectively, of share-based compensation expense related to the ESPP. There were 39,061 shares issued under the ESPP during the six-month offering period that ended on June 30, 2021.

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Share Capital - Shares

9 Months Ended

Sep. 30, 2021

Stockholders Equity Note [Abstract]

Share capital - shares

Note 11. Share capital - shares

The following table reflects the share capital activity (unaudited):

	Number of shares			Value (in thousands)
Balance at December 31, 2020		26,034,526		$	3
Issuance of ordinary shares under employee share purchase plan		39,061			—
Issuance of vested shares		195,284			—
Share options exercised		425,184			—
Shares withheld for net settlement of shares issued		(54,572	)		—
Balance at September 30, 2021		26,639,483		$	3

As of September 30, 2021, no dividends have been declared or paid.

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Earnings Per Share

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Earnings per share

Note 12. Earnings per share

Basic net earnings per share is computed by dividing net income by the weighted-average number of shares outstanding during the period.  Diluted net earnings per share is computed by giving effect to all potentially dilutive ordinary share equivalents outstanding for the period.  For purposes of this calculation, share options, RSUs, RSAs and ESPP awards are considered to be ordinary share equivalents but are excluded from the calculation of diluted earnings per share when including them would have an anti-dilutive effect.  The following table sets forth the computation of basic and diluted net earnings per share (unaudited and in thousands, except for share and per share data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Numerator:
Net income	$	5,595	$	4,617	$	8,069	$	35,994
Denominator:
Basic weighted average shares outstanding		25,691,357		26,540,843		25,683,969		26,342,113
Dilutive effect of share option awards		281,244		1,785,873		—		1,968,804
Dilutive effect of restricted share units and restricted share awards		374,072		312,459		183,195		382,951
Dilutive effect of employee share purchase plan		—		2		—		11,809
Diluted weighted average shares outstanding		26,346,673		28,639,177		25,867,164		28,705,677
Net earnings per share, basic	$	0.22	$	0.17	$	0.31	$	1.37
Net earnings per share, diluted	$	0.21	$	0.16	$	0.31	$	1.25

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Income Taxes

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Income taxes

Note 13. Income taxes

The Company’s provision for income taxes is based upon the estimated annual tax rate for the year applied to federal, state and foreign income. The Company recorded a provision for income taxes of $0.1 million and a provision of $0.4 million for the three-month periods ended September 30, 2020 and 2021, with an effective tax rate of 2.5% and 7.1%, respectively. In the three-month period ended September 30, 2020, the effective tax rate of 2.5% was primarily due to a partial release of a valuation allowance against the loss carryforwards in the Company’s UK entity. For the three-month period ended September 30, 2021, the effective tax rate of 7.1% did not benefit from the release of a valuation allowance, as all of the remaining valuation allowance on the UK NOL was released in the first quarter of 2021. For the three-month period ended September 30, 2021, the Company’s effective tax rate of 7.1% was different from the statutory rate of 21.0%, primarily due to tax benefits arising on employee restricted share vesting and option exercises.

In the nine-month periods ended September 30, 2020 and 2021, the Company recorded a provision for income taxes of $0.2 million and a tax benefit of $(5.9) million, with an effective tax rate of 2.7% and (19.6)%, respectively. The change in the effective tax rate from 2.7% to (19.6)% was primarily due to the release of a valuation allowance against the loss carryforwards in the Company’s UK entity and tax benefits arising on employee restricted share vesting and option exercises. For the nine-month period ended September 30, 2021, the Company’s effective tax rate of (19.6)% was different from the statutory rate of 21.0% primarily due to the release of a valuation allowance against the loss carryforwards in the Company’s UK entity resulting in recognition of a tax benefit, and tax benefits arising on employee restricted share vesting and option exercises.

The Company reviews the likelihood that it will realize the benefit of its deferred tax assets and, therefore, the need for a valuation allowance on a quarterly basis. It established a valuation allowance on all of its net deferred tax assets of its UK entity at June 30, 2019, given that the Company was in a 12-quarter cumulative loss position. The Company had continued to carry the valuation allowance through 2019, and during 2020 through the period ended December 31, 2020, due to a continuing 12-quarter cumulative loss position.

In the first quarter of 2021, management concluded that all of the valuation allowance on the Company’s UK entity’s deferred tax assets was no longer needed. This is primarily due to a 12-quarter cumulative income through the first quarter of 2021 and the forecast of future taxable income. As of September 30, 2021, based on the evaluation of positive and negative evidence, the Company believes it is more likely than not that the net deferred tax assets will be realized by its UK entity. Accordingly, management has recognized, and continues to recognize a non-recurring tax benefit of $7.7 million related to the valuation allowance reversal. As of September 30, 2021, the Company continued to maintain a valuation allowance of $0.7 million for state research and development tax credit benefits in the state of California. Such assessment may change in the future as further evidence becomes available.

On June 10, 2021, a new tax law became effective in the UK. The new tax law introduced certain tax changes in the UK, including a higher rate of 25% beginning April 1, 2023, and a 30% first year bonus depreciation on qualifying capital expenditures beginning April 1, 2021. The Company has revalued certain longer termed deferred assets at the higher future tax rate of 25% based on the expected reversal date of those assets. In addition, the Company initiated utilization of the 30% bonus first year depreciation on fixed assets placed into service beginning on April 1, 2021. The impact of the tax changes was not significant for the nine-month period ended September 30, 2021, though the impact will become more significant when the current tax rate changes from the current rate of 19% to 25% beginning on April 1, 2023.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2021

Commitments And Contingencies Disclosure [Abstract]

Commitments and contingencies

Note 14. Commitments and contingencies

In accordance with ASC 460, Guarantees, the Company recognizes the fair value for guarantee and indemnification arrangements it issues or modifies, if these arrangements are within the scope of the interpretation.  In addition, the Company must continue to monitor the conditions that are subject to the guarantees and indemnifications in order to identify if a loss has incurred.  If the Company determines it is probable that a loss has occurred, then any such estimated loss would be recognized under those guarantees and indemnifications and would be recognized in the Company’s condensed consolidated statements of operations and corresponding condensed consolidated balance sheets during that period.

Indemnification

The Company generally indemnifies its customers against claims brought by a third party to the extent any such claim alleges that the Company’s product infringes a patent, copyright or trademark or violates any other proprietary rights of that third party.  The maximum potential amount of future payments the Company may be required to make under these indemnification agreements is not estimable.

The Company indemnifies its directors and officers and select key employees, including key employees serving as directors or officers of the Company’s subsidiaries, for certain events or occurrences, subject to certain limits, while the director or officer is or was serving at the Company’s request in such capacity.  The term of the indemnification period is for the director’s or officer’s term of service. The Company may terminate the indemnification agreements with its directors, officers or key employees upon the termination of their services as directors or officers of the Company or its subsidiaries, or the termination of activities for which indemnification has been provided, but termination will not affect claims for indemnification related to events occurring prior to the effective date of termination.  The maximum amount of potential future indemnification is unlimited; however, the Company has a director and officer insurance policy that limits its exposure.  The Company believes the fair value of these indemnification agreements is minimal.

Warranties

The Company offers a standard warranty on its products, with the term depending on the product, and records a liability for the estimated future costs associated with potential warranty claims.  The Company’s responsibility under its standard warranty is the repair or replacement of in-warranty defective product, or to credit the purchase price of the defective product, at its discretion, without charge to the customer.  The Company’s estimate of future warranty costs is largely based on historical experience factors including product failure rates, material usage, and service delivery cost incurred in correcting product failures. The standard warranty is included in either Other current liabilities or Other noncurrent liabilities on its condensed consolidated balance sheets, depending on the time period covered by the warranty. The Company also offers an extended warranty for purchase that represents a future performance obligation for the Company. The extended warranty is included in deferred revenues (both current and noncurrent) on the condensed consolidated balance sheets and recognized on a straight-line basis over the term of the extended warranty. The warranty costs are reflected in the Company’s condensed consolidated statements of operations within cost of revenues.    

Legal proceedings

Third parties may from time to time assert legal claims against the Company.  The Company records accruals for loss contingencies to the extent that it concludes it is probable that a liability has been incurred and the amount of the related loss can be reasonably estimated. The Company evaluates, on a regular basis, developments in legal proceedings and other matters that could cause a change in amounts recorded. Due to the inherent uncertainty involving legal matters, the ultimate resolution could differ from amounts recorded. There is no pending or threatened legal proceedings to which the Company is a party, that in the Company’s opinion, is likely to have a material adverse effect on its financial condition or results of operations.

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Segment Information

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Segment information

Note 15. Segment information

The Company’s chief operating decision maker (“CODM”) is its Chief Executive Officer.  The Company’s CODM reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance.  Accordingly, the Company determined that it operates as one operating segment and one reporting unit.

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Revenues from Contracts with Customers

9 Months Ended

Sep. 30, 2021

Revenue From Contract With Customer [Abstract]

Revenues from contracts with customers

Note 16. Revenues from contracts with customers

Revenues consist primarily of revenues from the sale of hardware products with essential embedded software.  Revenues also include limited amounts for software products, extended warranty on hardware products and subscription services.  Substantially all products are sold through distributors and other channel partners, such as resellers and systems integrators.

The Company recognizes revenue to reflect the transfer of control of promised products or services to a customer in an amount that reflects the consideration to which the Company expects to be entitled in exchange for products or services.

The Company accounts for a contract when it has approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable.  

The Company identifies its distinct performance obligations under each contract.  A performance obligation is a promise in a contract to transfer a distinct product or service to the customer.  Hardware products with essential embedded software, software products, and purchased extended warranty on hardware products have been identified as separate and distinct performance obligations.

The transaction price is the amount of consideration to which the Company expects to be entitled in exchange for transferring products or services to a customer. An adjustment to revenue is made to adjust the transaction price to exclude the consideration related to products expected to be returned.  The Company records an asset at the carrying amount of the estimated stock returns and a liability for the estimated amount expected to be refunded to the customer.  The transaction price also excludes other forms of consideration provided to the customer, such as volume-based rebates and co-operative marketing allowances.

The Company recognizes revenue when, or as, it satisfies a performance obligation by transferring control of a promised product or service to a customer.  Revenue from hardware products with essential embedded software is recognized when control of the asset is tranferred, which is typically at the time of shipment. Revenue from perpetual license software is recognized at the point in time that the customer is able to use or benefit from the software.  Extended warranty on hardware products is a performance obligation that is satisfied over time, beginning on the effective date of the warranty period and ending on the expiration of the warranty period.  The Company recognizes revenue on extended warranties on a straight-line basis over the warranty period. Revenue from software subscriptions is recognized ratably over the term in which the services are provided and the performance obligation is satisfied.

The Company enters into revenue arrangements that may consist of multiple performance obligations, such as hardware products and extended warranty.  The Company allocates the transaction price to each performance obligation on a relative standalone selling price basis for each distinct product or service in the contract.  The best evidence of standalone selling price is the observable price of a product or service when the Company sells that product or service separately in similar circumstances and to simlar customers.  If a standalone selling price is not directly observable, the Company estimates the transaction price allocated to each performance obligation using the expected costs plus a margin approach.

Disaggregation of revenues

Revenues by product category were as follows (unaudited and in thousands, except percentages):

	Three Months Ended September 30,								Nine Months Ended September 30,
	2020				2021				2020				2021
Point-to-Multi-Point	$	43,342	59	%	$	50,144	66	%	$	118,773	61	%	$	167,739	65	%
Point-to-Point		17,967	25	%		13,890	18	%		43,679	22	%		45,432	18	%
Wi-Fi		9,949	14	%		10,734	14	%		29,070	15	%		41,154	16	%
Other		1,713	2	%		1,152	2	%		4,132	2	%		2,819	1	%
Total Revenues	$	72,971	100	%	$	75,920	100	%	$	195,654	100	%	$	257,144	100	%

The Company’s products are predominately sold through third-party distributors, and distributed through a third-party logistics provider with facilities in the United States, Netherlands and China.  The Company has determined the geographical distribution of product revenues based upon the ship-to destinations specified by its distributor customers.

Revenues by geography were as follows (unaudited and in thousands, except percentages):

	Three Months Ended September 30,								Nine Months Ended September 30,
	2020				2021				2020				2021
North America	$	38,656	53	%	$	36,564	48	%	$	102,145	52	%	$	140,105	54	%
Europe, Middle East and Africa		20,250	28	%		23,414	31	%		59,418	30	%		67,047	26	%
Caribbean and Latin America		9,138	12	%		7,993	11	%		19,021	10	%		30,660	12	%
Asia Pacific		4,927	7	%		7,949	10	%		15,070	8	%		19,332	8	%
Total Revenues	$	72,971	100	%	$	75,920	100	%	$	195,654	100	%	$	257,144	100	%

Contract balances

The following table summarizes contract balances as of December 31, 2020 and September 30, 2021 (in thousands):

	December 31, 2020		September 30, 2021
			(unaudited)
Trade accounts receivable, net of allowance for    credit losses	$	56,798	$	69,580
Deferred revenue - current		6,471		7,257
Deferred revenue - noncurrent		4,448		5,308
Refund liability	$	2,416	$	2,480

Deferred revenue consists of amounts due or received from customers in advance of the Company satisfying performance obligations under contractual arrangements. Deferred revenue is classified as current or noncurrent based on the timing of when revenue will be recognized.  The changes in deferred revenue were due to normal timing differences between the Company’s performance and the customers’ payment.    

The refund liability is the estimated amount expected to be refunded to customers in relation to product exchanges made as part of the Company’s stock rotation program and returns that have been authorized, but not yet received by the Company.  It is included within Other current liabilities in the condensed consolidated balance sheets.

Receivables and concentration of credit risk

Trade accounts receivable represents amounts for which the Company has an unconditional right to payment.  Amounts are in accordance with contractual terms and are recorded at face amount less an allowance for credit losses. The Company establishes an allowance for credit losses to present the net amount of accounts receivable expected to be collected. The allowance is determined by using the loss-rate method, which requires an estimation of loss rates based upon historical loss experience adjusted for factors that are relevant to determining the expected collectability of accounts receivables. Some of these factors include macroeconomic conditions that correlate with historical loss experience, delinquency trends, aging behavior of receivables and credit and liquidity indicators for individual customers.

The Company considers the credit risk of all customers and regularly monitors credit risk exposure in its trade receivables.  The Company’s standard credit terms with its customers are generally net 30 to 60 days. The Company had two customers representing more than 10% of trade receivables at December 31, 2020 and one customer representing more than 10% of trade receivables at September 30, 2021.

Remaining performance obligations

Remaining performance obligations represent the revenue that is expected to be recognized in future periods related to performance obligations included in a contract that are unsatisfied, or partially satisfied, as of the end of a period.  As of December 31, 2020, deferred revenue (current and noncurrent) of $10.9 million represents the Company’s remaining performance obligations, of which $6.5 million is expected to be recognized within one year, with the remainder to be recognized thereafter.  As of September 30, 2021, deferred revenue (current and noncurrent) of $12.6 million represents the Company’s remaining performance obligations, of which $7.3 million is expected to be recognized within one year, with the remainder to be recognized thereafter (unaudited).

Revenue recognized during the three and nine-month periods ended September 30, 2021 which was previously included in deferred revenues as of December 31, 2020 was $1.8 million and $5.4 million, respectively, compared to $1.5 million and $6.3 million of revenue recognized during the three and nine-month periods ended September 30, 2020, respectively, which was previously included in deferred revenues as of December 31, 2019.

Cost to obtain a contract

Sales commissions are incremental costs of obtaining a contract.  The Company has elected to recognize these expenses as incurred, as the amortization period of these costs is one year or less.

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Leases

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Leases

Note 17. Leases

Right-of-use assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at the commencement date.  The Company’s lease payments are typically fixed or contain fixed escalators.  The Company’s leases typically include certain lock-in periods and renewal options to extend the lease, but does not consider options to extend the lease it is not reasonably certain to exercise.  The Company elected the practical expedient to not separate the lease and non-lease components of its leases and currently has no leases with options to purchase the leased property.

The components of lease expense were as follows and are included in general and administrative expense (unaudited and in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Operating lease cost	$	643	$	630	$	1,935	$	1,981
Short-term lease cost		96		82		245		222
Variable lease costs		67		125		282		354
Total lease expense	$	806	$	837	$	2,462	$	2,557

Supplemental balance sheet information related to leases were as follows (in thousands, except lease term and discount rate):

	Balance Sheet Caption	December 31, 2020			September 30, 2021
					(unaudited)
Operating leases:
Operating lease assets	Operating lease assets	$	5,083		$	5,227
Current lease liabilities	Other current liabilities	$	2,167		$	1,638
Noncurrent lease liabilities	Noncurrent operating lease liabilities	$	3,332		$	3,999
Weighted average remaining lease    term (years):
Operating leases			3.35			3.63
Weighted average discount rate:
Operating leases			8.36	%		5.76	%

Supplemental cash flow information related to leases were as follows (unaudited and in thousands):

	Nine Months Ended September 30,
	2020		2021
Supplemental cash flow information:
Cash paid for amounts included in the measurement    of lease liabilities	$	1,937	$	1,976

The Company’s current lease terms range from one to five years and may include options to extend the lease by one to four years.

Remaining maturities on lease liabilities as of September 30, 2021 is as follows (unaudited and in thousands):

	Operating leases
2021 (October - December)	$	594
2022		1,852
2023		1,787
2024		1,022
2025		786
Thereafter		405
Total lease payments		6,446
Less:  interest		809
Present value of lease liabilities	$	5,637

As of September 30, 2021, the Company did not have any leases that have not yet commenced.

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Related Party Transactions

9 Months Ended

Sep. 30, 2021

Related Party Transactions [Abstract]

Related party transactions

Note 18. Related party transactions

The Company follows ASC 850, Related Party Disclosures, for the identification of related parties and disclosure of related party transactions.  A party is considered to be related to the Company if the party directly or indirectly or through one or more intermediaries, controls, is controlled by, or is under common control with the Company.  Related parties also include principal owners of the Company, its management, members of the immediate families of principal owners of the Company and its management and other parties with which the Company may deal.

For the three-month periods ended September 30, 2020 and 2021, the Company did not have any related party transactions to disclose.

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Business and Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The unaudited condensed consolidated financial statements include the accounts of Cambium Networks Corporation and its wholly-owned subsidiaries.  All intercompany balances and transactions have been eliminated.  The condensed consolidated financial statements as of September 30, 2021, and for the three-month and nine-month periods ended September 30, 2020 and 2021, and the related notes are unaudited. The unaudited condensed consolidated financial statements have been prepared on the same basis as the annual audited consolidated financial statements, and, in the opinion of management, reflect all adjustments, which comprise only normal recurring adjustments necessary to state fairly the Company’s financial position as of September 30, 2021 and results of operations for the three-month and nine-month periods ended September 30, 2020 and 2021 and cash flows for the nine-month periods ended September 30, 2020 and 2021. The condensed consolidated balance sheet as of December 31, 2020 has been derived from the audited financial statements at that date.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principals generally accepted in the United States (“U.S. GAAP”) have been condensed or omitted.  The condensed consolidated financial statements contained herein should be read in conjunction with the consolidated financial statements and related notes thereto for the year ended December 31, 2020 included in the Company’s annual report on Form 10-K and filed with the SEC on March 1, 2021.  The results of operations for the three-month and nine-month periods ended September 30, 2021 are not necessarily indicative of the operating results to be expected for the full year.

The Company has reclassified certain prior period amounts in the condensed consolidated statement of cash flows to conform to the current period’s presentation. Specifically, within the condensed consolidated statements of cash flows, the provision for inventory excess and obsolescence has been reclassified from “Other” to “Provision for inventory excess and obsolescence” and prepaid expenss has been reclassified from “Other assets and liabilities” to “Prepaid expenses”. This change in classification does not affect previously reported cash flows from operating activities in the condensed consolidated statements of cash flows.

Update to Significant Accounting Policies

Update to Significant Accounting Policies

There have been no material changes to the Company’s signifiant accounting policies disclosed in the 2020 Form 10-K, Part II, Item 8.

Recently adopted accounting pronouncements and Recently issued accounting pronouncements not yet adopted

Recently adopted accounting pronouncements

  In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This update provides optional expedients and exceptions for applying generally accepted accounting principles to certain contract modification and hedging relationships that reference London Inter-bank Offered Rate (LIBOR) or another reference rate that is expected to be discontinued. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022, when the reference rate replacement activity is expected to be completed. The adoption of ASU 2020-04 will not have an impact on the condensed consolidated financial statements until the debt agreement is modified to no longer reference LIBOR, and is not expected to be material.

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, as part of its Simplification Initiative to reduce the cost and complexity in accounting for income taxes. ASU 2019-12 removed certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period,

and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 also amended other aspects of the guidance to help simplify and promote consistent application of GAAP. The Company adopted this ASU effective January 1, 2021 on a prospective basis. The adoption of ASU 2019-12 did not have a material impact on the condensed consolidated financial statements.

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Balance Sheet Components (Tables)

9 Months Ended

Sep. 30, 2021

Balance Sheet Related Disclosures [Abstract]

Schedule of Inventories, Net

Inventories, net consisted of the following (in thousands):

	December 31,			September 30,
	2020			2021
				(unaudited)
Finished goods	$	35,241		$	30,617
Raw materials		4,576			3,044
Gross inventory		39,817			33,661
Less: Excess and obsolete provision		(5,855	)		(4,872	)
Inventories, net	$	33,962		$	28,789

Schedule of Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	December 31,		September 30,
	2020		2021
			(unaudited)
Accrued goods and services	$	7,937	$	7,345
Accrued inventory purchases		4,830		4,638
Accrued customer rebates		7,380		6,844
Other		13		—
Accrued liabilities	$	20,160	$	18,827

Schedule of Change to Accrued Warranty

Provisions for warranty claims are primarily related to our hardware products and are recorded at the time products are sold. The change to accrued warranty was as follows (in thousands):

	Year ended December 31,			Nine months ended September 30,
	2020			2021
					(unaudited)
Beginning balance	$	706		$	1,714
Warranties assumed due to acquisition		1,174			—
Fulfillment of assumed acquisition warranty		(482	)		(207	)
Provision increase, net		316			227
Ending balance	$	1,714		$	1,734

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Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2021

Property Plant And Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment, net consisted of the following (in thousands):

		December 31,			September 30,
	Useful Life	2020			2021
					(unaudited)
Equipment and tooling	3 to 5 years	$	24,367		$	28,924
Computer equipment	3 to 5 years		3,137			3,620
Furniture and fixtures	10 years		745			835
Leasehold improvements	2 to 3 years		282			384
Total cost			28,531			33,763
Less: Accumulated depreciation			(20,996	)		(23,467	)
Property and equipment, net		$	7,535		$	10,296

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Software (Tables)

9 Months Ended

Sep. 30, 2021

Schedule of Carrying Amount and Amortization of Software and Intangible Assets

The useful life, gross carrying value, accumulated amortization, and net balance for each major class of definite-lived intangible assets at each balance sheet date were as follows (in thousands):

		December 31, 2020							September 30, 2021
	Useful Life	Gross carrying amount		Accumulated amortization			Net balance		Gross carrying amount		Accumulated amortization			Net balance
									(unaudited)		(unaudited)			(unaudited)
Unpatented    technology	3 - 7 years	$	14,660	$	(14,375	)	$	285	$	14,660	$	(14,510	)	$	150
Customer    relationships	5 - 18 years		19,300		(7,128	)		12,172		19,300		(8,253	)		11,047
Patents	7 years		11,300		(11,300	)		—		11,300		(11,300	)		—
Trademarks	10 years		5,270		(4,832	)		438		5,270		(5,227	)		43
Total		$	50,530	$	(37,635	)	$	12,895	$	50,530	$	(39,290	)	$	11,240

Schedule of Estimated Amortization Expense of Capitalized Software and Intangible Assets

Based on capitalized intangible assets as of September 30, 2021, estimated amortization expense amounts in future fiscal years are as follows (unaudited and in thousands):

Year ending December 31,	Amortization
2021 (October - December)	$	461
2022		1,603
2023		1,498
2024		1,498
2025		1,498
Thereafter		4,682
Total amortization	$	11,240

Capitalized Software Assets

Schedule of Carrying Amount and Amortization of Software and Intangible Assets

Software consisted of the following (in thousands):

		December 31, 2020							September 30, 2021
	Useful Life	Gross carrying amount		Accumulated amortization			Net balance		Gross carrying amount		Accumulated amortization			Net balance
									(unaudited)		(unaudited)			(unaudited)
Acquired and    Software for    internal use	3 to7 years	$	15,680	$	(14,214	)	$	1,466	$	15,729	$	(14,737	)	$	992
Software marketed for    external sale	3 years		3,411		(1,439	)		1,972		5,986		(1,978	)		4,008
Total		$	19,091	$	(15,653	)	$	3,438	$	21,715	$	(16,715	)	$	5,000

Schedule of Estimated Amortization Expense of Capitalized Software and Intangible Assets

Based on capitalized software assets at September 30, 2021, estimated amortization expense in future fiscal years is as follows (unaudited and in thousands):

Year ending December 31,	Acquired and internal use software		Software marketed for external use		Total
2021 (October - December)	$	167	$	299	$	466
2022		428		1,249		1,677
2023		179		1,363		1,542
2024		76		847		923
2025		68		250		318
Thereafter		74		—		74
Total amortization	$	992	$	4,008	$	5,000

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Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Carrying Amount and Amortization of Software and Intangible Assets

The useful life, gross carrying value, accumulated amortization, and net balance for each major class of definite-lived intangible assets at each balance sheet date were as follows (in thousands):

		December 31, 2020							September 30, 2021
	Useful Life	Gross carrying amount		Accumulated amortization			Net balance		Gross carrying amount		Accumulated amortization			Net balance
									(unaudited)		(unaudited)			(unaudited)
Unpatented    technology	3 - 7 years	$	14,660	$	(14,375	)	$	285	$	14,660	$	(14,510	)	$	150
Customer    relationships	5 - 18 years		19,300		(7,128	)		12,172		19,300		(8,253	)		11,047
Patents	7 years		11,300		(11,300	)		—		11,300		(11,300	)		—
Trademarks	10 years		5,270		(4,832	)		438		5,270		(5,227	)		43
Total		$	50,530	$	(37,635	)	$	12,895	$	50,530	$	(39,290	)	$	11,240

Schedule of Estimated Amortization Expense of Capitalized Software and Intangible Assets

Based on capitalized intangible assets as of September 30, 2021, estimated amortization expense amounts in future fiscal years are as follows (unaudited and in thousands):

Year ending December 31,	Amortization
2021 (October - December)	$	461
2022		1,603
2023		1,498
2024		1,498
2025		1,498
Thereafter		4,682
Total amortization	$	11,240

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Debt (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Schedule of Current and Noncurrent Portions of External Debt Facilities

The following table reflects the current and noncurrent portions of the external debt facilities at December 31, 2020 and September 30, 2021 (in thousands):

	December 31,			September 30,
	2020			2021
				(unaudited)
Term loan facility	$	55,250		$	30,678
Less debt issuance costs		(1,092	)		(429	)
Total debt		54,158			30,249
Less current portion of term facility		(29,747	)		-
Current portion of debt issuance costs		546			-
Total long-term external debt, net	$	24,957		$	30,249

Schedule of Maturities on External Debt Outstanding

Maturities on the external debt outstanding at September 30, 2021 is as follows (unaudited and in thousands):

Year ending December 31,
2021 (October - December)	$	—
2022		30,678
Total	$	30,678

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Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Changes in Number of Shares Available for Grant

The following table summarizes changes in the number of shares available for grant under the Company’s equity incentive plans during the nine-month period ended September 30, 2021 (unaudited):

	Number of shares
Available for grant at December 31, 2020		832,134
Added to 2019 Share Incentive Plan		1,301,726
RSUs granted		(259,615	)
Options granted		(116,035	)
Shares withheld in settlement of taxes and/or exercise price		54,572
Forfeitures		24,687
Available for grant at September 30, 2021		1,837,469

Schedule of Total Share Based Compensation Expense

The following table shows total share-based compensation expense for the three-month and nine-month periods ended September 30, 2020 and 2021 (unaudited and in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Cost of revenues	$	16	$	39	$	51	$	108
Research and development		396		834		1,186		2,193
Sales and marketing		251		540		726		1,374
General and administrative		291		663		742		1,909
Total share-based compensation expense	$	954	$	2,076	$	2,705	$	5,584

Summary of Stock Option Activity

The following is a summary of option activity for the Company’s share incentive plans for the nine-month period ended September 30, 2021 (unaudited):

	Options			Weighted average exercise price		Weighted Average remaining contractual term (years)		Aggregate intrinsic value
Outstanding at December 31, 2020		3,164,185		$	11.24		8.8	$	43,793,890
Options granted		116,035		$	42.52		—	$	—
Options exercised		(425,184	)	$	10.68		—	$	—
Options forfeited		(21,312	)	$	11.00		—	$	—
Outstanding at September 30, 2021		2,833,724		$	12.61		8.2	$	67,564,369
Options exercisable at September 30, 2021		1,114,876		$	11.22		8.0	$	27,841,726
Options vested and expected to vest at September 30, 2021		2,761,432		$	12.60		8.2	$	65,844,785

Schedule of Estimated Fair Value of Weighted Average Assumptions

The fair value of options granted are estimated on the date of grant using the Black-Scholes option pricing model.  The fair value of share options is being amortized on a straight-line basis over the requisite service period of the awards.  The fair value of share options is estimated using the following weighted-average assumptions (unaudited):

	Nine Months Ended September 30,
	2020			2021
Expected dividend yield		—			—
Risk-free interest rate		0.39	%		1.14	%
Weighted-average expected volatility		50.0	%		50.9	%
Expected term (in years)		6.5			6.5
Weighted average grant-date fair value per share of options granted	$	7.56		$	21.36

Summary of Restricted Shares Activity

The following is a summary of restricted shares activity for the Company’s share incentive plans for the nine-month period ended September 30, 2021 (unaudited):

	Units			Weighted average grant date fair value
RSU and RSA balance at December 31, 2020		519,197		$	4.89
RSUs and RSAs granted		259,615		$	42.63
RSUs and RSAs vested		(194,757	)	$	4.95
RSUs and RSAs forfeited		(3,375	)	$	42.52
RSU and RSA balance at September 30, 2021		580,680		$	21.53
RSUs and RSAs expected to vest at September 30, 2021		580,680		$	21.53

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Share Capital - Shares (Tables)

9 Months Ended

Sep. 30, 2021

Stockholders Equity Note [Abstract]

Shares (Share Capital Activity)

The following table reflects the share capital activity (unaudited):

	Number of shares			Value (in thousands)
Balance at December 31, 2020		26,034,526		$	3
Issuance of ordinary shares under employee share purchase plan		39,061			—
Issuance of vested shares		195,284			—
Share options exercised		425,184			—
Shares withheld for net settlement of shares issued		(54,572	)		—
Balance at September 30, 2021		26,639,483		$	3

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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Earnings Per Share

The following table sets forth the computation of basic and diluted net earnings per share (unaudited and in thousands, except for share and per share data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Numerator:
Net income	$	5,595	$	4,617	$	8,069	$	35,994
Denominator:
Basic weighted average shares outstanding		25,691,357		26,540,843		25,683,969		26,342,113
Dilutive effect of share option awards		281,244		1,785,873		—		1,968,804
Dilutive effect of restricted share units and restricted share awards		374,072		312,459		183,195		382,951
Dilutive effect of employee share purchase plan		—		2		—		11,809
Diluted weighted average shares outstanding		26,346,673		28,639,177		25,867,164		28,705,677
Net earnings per share, basic	$	0.22	$	0.17	$	0.31	$	1.37
Net earnings per share, diluted	$	0.21	$	0.16	$	0.31	$	1.25

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Revenues from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Revenues by Product Category

Revenues by product category were as follows (unaudited and in thousands, except percentages):

	Three Months Ended September 30,								Nine Months Ended September 30,
	2020				2021				2020				2021
Point-to-Multi-Point	$	43,342	59	%	$	50,144	66	%	$	118,773	61	%	$	167,739	65	%
Point-to-Point		17,967	25	%		13,890	18	%		43,679	22	%		45,432	18	%
Wi-Fi		9,949	14	%		10,734	14	%		29,070	15	%		41,154	16	%
Other		1,713	2	%		1,152	2	%		4,132	2	%		2,819	1	%
Total Revenues	$	72,971	100	%	$	75,920	100	%	$	195,654	100	%	$	257,144	100	%

Schedule of Revenue by Geography

Revenues by geography were as follows (unaudited and in thousands, except percentages):

	Three Months Ended September 30,								Nine Months Ended September 30,
	2020				2021				2020				2021
North America	$	38,656	53	%	$	36,564	48	%	$	102,145	52	%	$	140,105	54	%
Europe, Middle East and Africa		20,250	28	%		23,414	31	%		59,418	30	%		67,047	26	%
Caribbean and Latin America		9,138	12	%		7,993	11	%		19,021	10	%		30,660	12	%
Asia Pacific		4,927	7	%		7,949	10	%		15,070	8	%		19,332	8	%
Total Revenues	$	72,971	100	%	$	75,920	100	%	$	195,654	100	%	$	257,144	100	%

Summary of Contract Balances

The following table summarizes contract balances as of December 31, 2020 and September 30, 2021 (in thousands):

	December 31, 2020		September 30, 2021
			(unaudited)
Trade accounts receivable, net of allowance for    credit losses	$	56,798	$	69,580
Deferred revenue - current		6,471		7,257
Deferred revenue - noncurrent		4,448		5,308
Refund liability	$	2,416	$	2,480

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Leases (Tables)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Components of Lease Expense

The components of lease expense were as follows and are included in general and administrative expense (unaudited and in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2021		2020		2021
Operating lease cost	$	643	$	630	$	1,935	$	1,981
Short-term lease cost		96		82		245		222
Variable lease costs		67		125		282		354
Total lease expense	$	806	$	837	$	2,462	$	2,557

Supplemental Balance Sheet Information

Supplemental balance sheet information related to leases were as follows (in thousands, except lease term and discount rate):

	Balance Sheet Caption	December 31, 2020			September 30, 2021
					(unaudited)
Operating leases:
Operating lease assets	Operating lease assets	$	5,083		$	5,227
Current lease liabilities	Other current liabilities	$	2,167		$	1,638
Noncurrent lease liabilities	Noncurrent operating lease liabilities	$	3,332		$	3,999
Weighted average remaining lease    term (years):
Operating leases			3.35			3.63
Weighted average discount rate:
Operating leases			8.36	%		5.76	%

Supplemental Cash Flow Information

Supplemental cash flow information related to leases were as follows (unaudited and in thousands):

	Nine Months Ended September 30,
	2020		2021
Supplemental cash flow information:
Cash paid for amounts included in the measurement    of lease liabilities	$	1,937	$	1,976

Remaining Maturities on Lease Liabilities

Remaining maturities on lease liabilities as of September 30, 2021 is as follows (unaudited and in thousands):

	Operating leases
2021 (October - December)	$	594
2022		1,852
2023		1,787
2024		1,022
2025		786
Thereafter		405
Total lease payments		6,446
Less:  interest		809
Present value of lease liabilities	$	5,637

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Business and Significant Accounting Policies - Additional Information (Details)	Sep. 30, 2021
ASU 2019-12
Business And Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2021
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true
ASU 2020-04
Business And Significant Accounting Policies [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Mar. 12, 2020
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]	true

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Fair Value - Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair value credit agreement	$ 30.7	$ 55.3

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Balance Sheet Components - Schedule of Inventories, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Inventory Net [Abstract]
Finished goods	$ 30,617	$ 35,241
Raw materials	3,044	4,576
Gross inventory	33,661	39,817
Less: Excess and obsolete provision	(4,872)	(5,855)
Inventories, net	$ 28,789	$ 33,962

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Balance Sheet Components - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accrued Liabilities Current [Abstract]
Accrued goods and services	$ 7,345	$ 7,937
Accrued inventory purchases	4,638	4,830
Accrued customer rebates	6,844	7,380
Other		13
Accrued liabilities	$ 18,827	$ 20,160

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Balance Sheet Components - Schedule of Change to Accrued Warranty (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Standard Product Warranty Disclosure [Abstract]
Beginning balance	$ 1,714	$ 706
Warranties assumed due to acquisition		1,174
Fulfillment of assumed acquisition warranty	(207)	(482)
Provision increase, net	227	316
Ending balance	$ 1,734	$ 1,714

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Balance Sheet Components - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Product Warranty Liability [Line Items]
Accrued warranty	$ 1,734	$ 1,714	$ 706
Other Current Liabilities
Product Warranty Liability [Line Items]
Accrued warranty	1,200
Other Noncurrent Liabilities
Product Warranty Liability [Line Items]
Accrued warranty	$ 500

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Property and Equipment - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Total cost	$ 33,763	$ 28,531
Less: Accumulated depreciation	(23,467)	(20,996)
Property and equipment, net	10,296	7,535
Equipment and Tooling
Property Plant And Equipment [Line Items]
Total cost	$ 28,924	24,367
Equipment and Tooling | Minimum
Property Plant And Equipment [Line Items]
Useful Life	3 years
Equipment and Tooling | Maximum
Property Plant And Equipment [Line Items]
Useful Life	5 years
Computer Equipment
Property Plant And Equipment [Line Items]
Total cost	$ 3,620	3,137
Computer Equipment | Minimum
Property Plant And Equipment [Line Items]
Useful Life	3 years
Computer Equipment | Maximum
Property Plant And Equipment [Line Items]
Useful Life	5 years
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Useful Life	10 years
Total cost	$ 835	745
Leasehold Improvements
Property Plant And Equipment [Line Items]
Total cost	$ 384	$ 282
Leasehold Improvements | Minimum
Property Plant And Equipment [Line Items]
Useful Life	2 years
Leasehold Improvements | Maximum
Property Plant And Equipment [Line Items]
Useful Life	3 years

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Property and Equipment - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Property Plant And Equipment [Abstract]
Depreciation expense	$ 800	$ 900	$ 2,526	$ 2,817

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Software - Schedule of Software (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 21,715	$ 19,091
Accumulated amortization	(16,715)	(15,653)
Net balance	5,000	3,438
Acquired and Software for Internal Use
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	15,729	15,680
Accumulated amortization	(14,737)	(14,214)
Net balance	$ 992	1,466
Acquired and Software for Internal Use | Minimum
Finite Lived Intangible Assets [Line Items]
Useful life	3 years
Acquired and Software for Internal Use | Maximum
Finite Lived Intangible Assets [Line Items]
Useful life	7 years
Software Marketed for External Sale
Finite Lived Intangible Assets [Line Items]
Useful life	3 years
Gross carrying amount	$ 5,986	3,411
Accumulated amortization	(1,978)	(1,439)
Net balance	$ 4,008	$ 1,972

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Software - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Acquired and Software for Internal Use
Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 0.1	$ 0.2	$ 0.5	$ 0.6
Acquired and Software for Internal Use | Minimum
Finite Lived Intangible Assets [Line Items]
Useful life			3 years
Acquired and Software for Internal Use | Maximum
Finite Lived Intangible Assets [Line Items]
Useful life			7 years
Software Marketed for External Sale
Finite Lived Intangible Assets [Line Items]
Useful life			3 years
Amortization expense	$ 0.2	$ 0.2	$ 0.5	$ 0.5

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Software - Schedule of Estimated Amortization Expense of Capitalized Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
2021 (October - December)	$ 461
2022	1,603
2023	1,498
2024	1,498
2025	1,498
Thereafter	4,682
Total amortization	11,240	$ 12,895
Capitalized Software Assets
Finite Lived Intangible Assets [Line Items]
2021 (October - December)	466
2022	1,677
2023	1,542
2024	923
2025	318
Thereafter	74
Total amortization	5,000
Capitalized Software Assets | Acquired and Internal Use Software
Finite Lived Intangible Assets [Line Items]
2021 (October - December)	167
2022	428
2023	179
2024	76
2025	68
Thereafter	74
Total amortization	992
Capitalized Software Assets | Software Marketed for External Use
Finite Lived Intangible Assets [Line Items]
2021 (October - December)	299
2022	1,249
2023	1,363
2024	847
2025	250
Total amortization	$ 4,008

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Goodwill and Intangible Assets - Additional Information (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) Segment Subsidiary Unit	Sep. 30, 2020 USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Number of operating segment | Segment			1
Number of reportable segments | Segment			1
Number of operating subsidiaries | Subsidiary			2
Adjustments to carrying value of goodwill			$ 0
Number of reporting unit | Unit			1
Impairment of goodwill			$ 0
Amortization expense	$ 600,000	$ 600,000	$ 1,700,000	$ 1,700,000

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Goodwill and Intangible Assets - Schedule of Carrying Amount and Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 50,530	$ 50,530
Accumulated amortization	(39,290)	(37,635)
Total amortization	11,240	12,895
Unpatented Technology
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	14,660	14,660
Accumulated amortization	(14,510)	(14,375)
Total amortization	$ 150	285
Unpatented Technology | Minimum
Finite Lived Intangible Assets [Line Items]
Useful life	3 years
Unpatented Technology | Maximum
Finite Lived Intangible Assets [Line Items]
Useful life	7 years
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 19,300	19,300
Accumulated amortization	(8,253)	(7,128)
Total amortization	$ 11,047	12,172
Customer Relationships | Minimum
Finite Lived Intangible Assets [Line Items]
Useful life	5 years
Customer Relationships | Maximum
Finite Lived Intangible Assets [Line Items]
Useful life	18 years
Patents
Finite Lived Intangible Assets [Line Items]
Useful life	7 years
Gross carrying amount	$ 11,300	11,300
Accumulated amortization	$ (11,300)	(11,300)
Trademarks
Finite Lived Intangible Assets [Line Items]
Useful life	10 years
Gross carrying amount	$ 5,270	5,270
Accumulated amortization	(5,227)	(4,832)
Total amortization	$ 43	$ 438

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Goodwill and Intangible Assets - Schedule of Estimated Amortization Expense of Capitalized Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets Net [Abstract]
2021 (October - December)	$ 461
2022	1,603
2023	1,498
2024	1,498
2025	1,498
Thereafter	4,682
Total amortization	$ 11,240	$ 12,895

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Debt - Additional Information (Details) - USD ($) $ in Thousands			3 Months Ended				9 Months Ended		12 Months Ended
	Nov. 13, 2020	Jun. 28, 2019	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt Instrument [Line Items]
Debt outstanding			$ 30,678				$ 30,678
Current portion of long-term debt									$ 29,201
Repayment of term loan							24,572	$ 7,500
Net interest expense			$ 700			$ 1,200	3,200	$ 4,100
Amortization of debt issuance costs associated with excess cash flow payment							300
Third Amended and Restated Credit Agreement
Debt Instrument [Line Items]
Debt instrument, maturity date		Dec. 21, 2022	Dec. 21, 2022
Debt instrument, principal payments		$ 2,500	$ 2,500
Debt instrument, frequency of payment		quarterly
Term Loan Facility
Debt Instrument [Line Items]
Debt outstanding			$ 30,678				$ 30,678		$ 55,250
Debt instrument interest rate			5.25%				5.25%		5.50%
Debt instrument, interest rate terms							Interest accrues on the outstanding principal amount of the term loan on a quarterly basis and is equal to a base rate of the higher of (a) 1.25% per annum or (b) the rate per annum determined by reference to the 1-, 2-, 3- or 6-month US Dollar LIBOR rate as selected by the Company, plus an applicable margin of 4.75%, 4.25%, or 4.00% as determined by the Company’s performance as measured by the consolidated leverage ratio.
Term Loan Facility | Base Rate
Debt Instrument [Line Items]
Debt instrument base rate							1.25%
Term Loan Facility | Applicable Margin Rate
Debt Instrument [Line Items]
Debt instrument base rate	4.75%			4.00%	4.25%				4.25%
Term Loan Facility | Third Amended and Restated Credit Agreement
Debt Instrument [Line Items]
Debt instrument, maturity date		Dec. 21, 2022
Repayment of term loan				$ 19,600
Term Loan Facility | Third Amended and Restated Credit Agreement | LIBOR Rate
Debt Instrument [Line Items]
Debt instrument, interest rate terms							In May 2021, the FCA confirmed the 1 week and 2-month US Dollar LIBOR tenors will cease on December 31, 2021, but the remaining five US Dollar LIBOR tenors (overnight and 1, 3, 6 and 12 month) will not cease until June 30, 2023.  The base interest rate on the Company’s Credit Agreement may be determined by reference to the 1-, 2-, 3- or 6-month US Dollar LIBOR rate, as selected by the Company.
Revolving Credit Facility
Debt Instrument [Line Items]
Debt outstanding			$ 0				$ 0
Debt Instrument amount available under credit facility			$ 10,000				$ 10,000
Revolving Credit Facility | Third Amended and Restated Credit Agreement
Debt Instrument [Line Items]
Credit facility, expiration date		Dec. 21, 2022

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Debt - Schedule of Current and Noncurrent Portions of External Debt Facilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt, Gross	$ 30,678
Less debt issuance costs	(429)	$ (1,092)
Total debt	30,249	54,158
Less current portion of term facility		(29,747)
Current portion of debt issuance costs		546
Total long-term external debt, net	30,249	24,957
Term Loan Facility
Debt Instrument [Line Items]
Long-term debt, Gross	$ 30,678	$ 55,250

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Debt - Schedule of Maturities on External Debt Outstanding (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Maturities Of Long Term Debt [Abstract]
2022	$ 30,678
Total	$ 30,678

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Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
U.S. Pan
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer matching contribution, percent of match			100.00%
Defined contribution plan, maximum annual contributions per employee, percent			4.00%
Defined contribution plan employers matching contribution vesting period			2 years
Defined contribution plan, employer discretionary contribution amount	$ 0.2	$ 0.3	$ 1.0	$ 0.8
UK Plan
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer matching contribution, percent of match			5.00%
Defined contribution plan, maximum annual contributions per employee, percent			7.00%
Defined contribution plan, employer discretionary contribution amount	$ 0.1	$ 0.1	$ 0.3	$ 0.3
Defined contribution plan, employee matching contribution, percent of match			3.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay			1.00%

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Other Expense, Net - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net Other Expense
Other Non Operating Income and Expense [Line Items]
Foreign exchange (gains) and losses	$ 0.1	$ 0.3	$ 0.2	$ 0.1

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Share-Based Compensation - Additional Information (Details) - USD ($)			1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended
	Mar. 01, 2021	Mar. 24, 2020	Jun. 30, 2019	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted							259,615
Share-based compensation income tax benefits				$ 600,000	$ 200,000		$ 3,000,000.0	$ 500,000
Share-based compensation				2,100,000	$ 1,000,000.0		5,584,000	$ 2,705,000
Pre-tax unrecognized compensation expense, net of estimated forfeitures							$ 19,500,000
Forfeiture rate utilized for estimating forfeitures of options and restricted share units granted.							8.20%
Share options contractual term							10 years
Aggregate intrinsic value of options exercisable				27,841,726			$ 27,841,726
Share options exercised							425,184
Unrecognized pre-tax share based compensation expense related to unvested share option awards				9,700,000			$ 9,700,000
Shares vested							194,757
Unrecognized pre-tax compensation expense related to unvested restricted share awards and restricted shares units				$ 9,800,000			$ 9,800,000
Employee Share Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized				1,067,075			1,067,075
Number of outstanding shares added annually			275,000
Percentage of outstanding shares			1.00%
Share-based compensation				$ 200,000			$ 500,000
Total number of shares available under ESPP			550,000
Percentage of purchase price shares on first trading day of offering period and purchase date			85.00%
Number of additional shares available under ESPP	260,345	256,730
Number of shares issued						39,061
2019 Share Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized	1,301,726			1,301,726			1,301,726
Shares granted							259,615
Percentage of outstanding shares			5.00%
2019 Share Incentive Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of outstanding shares added annually			1,320,000
2019 Share Incentive Plan | IPO
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized			3,400,000
2019 Share Incentive Plan | RSAs and RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares vested							194,757
2019 Share Incentive Plan | RSAs and RSUs | IPO
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted			240,037
2019 Share Incentive Plan | Recapitalization Awards | IPO
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share price			$ 12.00
2019 Share Incentive Plan | RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares granted							259,615
Shares to pay employees' portion of minimum payroll withholding taxes							54,572

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Share-Based Compensation - Summary of Changes in Number of Shares Available for Grant (Details) - shares	9 Months Ended
	Sep. 30, 2021	Mar. 01, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs granted	(259,615)
Options granted	(116,035)
Forfeitures	21,312
2019 Share Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Available for grant, beginning balance	832,134
Number of shares authorized	1,301,726	1,301,726
RSUs granted	(259,615)
Options granted	(116,035)
Shares withheld in settlement of taxes and/or exercise price	54,572
Forfeitures	24,687
Available for grant, ending balance	1,837,469

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Share-Based Compensation - Schedule of Total Share Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	$ 2,076	$ 954	$ 5,584	$ 2,705
Cost of Revenues
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	39	16	108	51
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	834	396	2,193	1,186
Sales and Marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	540	251	1,374	726
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	$ 663	$ 291	$ 1,909	$ 742

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Share-Based Compensation - Summary of Stock Option Activity (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares
Options
Options outstanding, Beginning balance | shares	3,164,185
Options granted | shares	116,035
Options exercised | shares	(425,184)
Options forfeited | shares	(21,312)
Options outstanding, Ending balance | shares	2,833,724	3,164,185
Options exercisable | shares	1,114,876
Options vested and expected to vest | shares	2,761,432
Weighted average exercise price
Weighted average exercise price, Outstanding beginning balance | $ / shares	$ 11.24
Weighted average exercise price, Options granted | $ / shares	42.52
Weighted average exercise price, Options exercised | $ / shares	10.68
Weighted average exercise price, Options forfeited | $ / shares	11.00
Weighted average exercise price, Outstanding ending balance | $ / shares	12.61	$ 11.24
Weighted average exercise price, Options exercisable | $ / shares	11.22
Weighted average exercise price, Options vested and expected to vest | $ / shares	$ 12.60
Weighted average remaining contractual term (years)
Weighted average remaining contractual term, Options outstanding	8 years 2 months 12 days	8 years 9 months 18 days
Weighted average remaining contractual term, Options exercisable	8 years
Weighted average remaining contractual term, Options vested and expected to vest	8 years 2 months 12 days
Aggregate intrinsic value, Outstanding, Beginning balance | $	$ 67,564,369	$ 43,793,890
Aggregate intrinsic value, Options exercisable | $	27,841,726
Aggregate intrinsic value, Options vested and expected to vest | $	$ 65,844,785

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Share-Based Compensation - Schedule of Estimated Fair Value of Weighted Average Assumptions (Details) - $ / shares	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Risk-free interest rate	1.14%	0.39%
Weighted-average expected volatility	50.90%	50.00%
Expected term (in years)	6 years 6 months	6 years 6 months
Weighted average grant-date fair value per share of options granted	$ 21.36	$ 7.56

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Share-Based Compensation - Summary of Restricted Shares Activity (Details)	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Number of Units
Number of Units, RSU and RSA, beginning balance | shares	519,197
Number of Units, RSU and RSA, granted | shares	259,615
Number of Units, RSU and RSA, vested | shares	(194,757)
Number of Units, RSU and RSA, forfeited | shares	(3,375)
Number of Units, RSU and RSA, ending balance | shares	580,680
Number of Units, RSUs and RSAs, expected to vest | shares	580,680
Weighted average grant date fair value
Weighted average grant date fair value, RSU and RSA, beginning balance | $ / shares	$ 4.89
Weighted average grant date fair value, RSU and RSA, granted | $ / shares	42.63
Weighted average grant date fair value, RSU and RSA, vested | $ / shares	4.95
Weighted average grant date fair value, RSU, and RSA, forfeited | $ / shares	42.52
Weighted average grant date fair value, RSU and RSA, ending balance | $ / shares	21.53
Weighted average grant date fair value, RSU and RSA, expected to vest | $ / shares	$ 21.53

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Share Capital - Shares (Share Capital Activity) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Schedule Of Capitalization Equity [Line Items]
Share options exercised, shares				425,184
Share options exercised	$ 1,196	$ 163		$ 4,541	$ 163
Share Capital
Schedule Of Capitalization Equity [Line Items]
Beginning balance, shares	26,503,000	25,684,000	26,034,526	26,034,526	25,673,000
Issuance of ordinary shares under employee share purchase plan, Number of shares				39,061
Issuance of vested shares, Number of shares				195,284
Share options exercised, shares	113,000	14,000		425,184	14,000
Shares withheld for net settlement of shares issued, Number of shares				(54,572)
Ending balance, shares	26,639,483	25,701,000	26,503,000	26,639,483	25,701,000
Beginning balance			$ 3	$ 3
Ending balance	$ 3			$ 3

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Share Capital - Shares - Additional Information (Details)	9 Months Ended
	Sep. 30, 2021 $ / shares
Stockholders Equity Note [Abstract]
Common stock dividends declared	$ 0
Common stock dividends paid	$ 0

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Earnings Per Share - Computation of Basic and Diluted Net Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net income	$ 4,617	$ 5,595	$ 35,994	$ 8,069
Denominator:
Basic weighted average shares outstanding	26,540,843	25,691,357	26,342,113	25,683,969
Dilutive effect of share option awards	1,785,873	281,244	1,968,804
Dilutive effect of restricted share units and restricted share awards	312,459	374,072	382,951	183,195
Dilutive effect of employee share purchase plan	2		11,809
Diluted weighted average shares outstanding	28,639,177	26,346,673	28,705,677	25,867,164
Net earnings per share, basic	$ 0.17	$ 0.22	$ 1.37	$ 0.31
Net earnings per share, diluted	$ 0.16	$ 0.21	$ 1.25	$ 0.31

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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
	Apr. 01, 2023	Jun. 10, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Schedule Of Income Taxes [Line Items]
Provision (benefit) for income taxes			$ 355	$ 144	$ (5,899)	$ 224
Effective tax rate			7.10%	2.50%	(19.60%)	2.70%
Statutory rate			21.00%		21.00%
Non-recurring tax benefit related to valuation allowance reversal					$ 7,700
UK
Schedule Of Income Taxes [Line Items]
Statutory rate					19.00%
Percentage of higher future tax rate effective from beginning April 1, 2023		25.00%
Tax rate on first year bonus depreciation from beginning April 1, 2021		30.00%
Forecast | UK
Schedule Of Income Taxes [Line Items]
Statutory rate	25.00%
California | Research and Development
Schedule Of Income Taxes [Line Items]
Valuation allowance on the related deferred tax asset					$ 700

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Segment Information - Additional Information (Details)	9 Months Ended
	Sep. 30, 2021 Segment
Segment Reporting [Abstract]
Number of reporting segments	1
Number of operating segment	1

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Revenues from Contracts with Customers - Schedule of Revenue by Product Category (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation Of Revenue [Line Items]
Revenues	$ 75,920	$ 72,971	$ 257,144	$ 195,654
Sales Revenue, Product Line | Product Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Point-to-Multi-Point
Disaggregation Of Revenue [Line Items]
Revenues	$ 50,144	$ 43,342	$ 167,739	$ 118,773
Point-to-Multi-Point | Sales Revenue, Product Line | Product Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	66.00%	59.00%	65.00%	61.00%
Point-to-Point
Disaggregation Of Revenue [Line Items]
Revenues	$ 13,890	$ 17,967	$ 45,432	$ 43,679
Point-to-Point | Sales Revenue, Product Line | Product Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	18.00%	25.00%	18.00%	22.00%
Wi-Fi
Disaggregation Of Revenue [Line Items]
Revenues	$ 10,734	$ 9,949	$ 41,154	$ 29,070
Wi-Fi | Sales Revenue, Product Line | Product Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	14.00%	14.00%	16.00%	15.00%
Other
Disaggregation Of Revenue [Line Items]
Revenues	$ 1,152	$ 1,713	$ 2,819	$ 4,132
Other | Sales Revenue, Product Line | Product Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	2.00%	2.00%	1.00%	2.00%

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Revenues from Contracts with Customers - Schedule of Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation Of Revenue [Line Items]
Revenues	$ 75,920	$ 72,971	$ 257,144	$ 195,654
Sales Revenue, Product Line | Geographic Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
North America
Disaggregation Of Revenue [Line Items]
Revenues	$ 36,564	$ 38,656	$ 140,105	$ 102,145
North America | Sales Revenue, Product Line | Geographic Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	48.00%	53.00%	54.00%	52.00%
Europe, Middle East and Africa
Disaggregation Of Revenue [Line Items]
Revenues	$ 23,414	$ 20,250	$ 67,047	$ 59,418
Europe, Middle East and Africa | Sales Revenue, Product Line | Geographic Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	31.00%	28.00%	26.00%	30.00%
Caribbean and Latin America
Disaggregation Of Revenue [Line Items]
Revenues	$ 7,993	$ 9,138	$ 30,660	$ 19,021
Caribbean and Latin America | Sales Revenue, Product Line | Geographic Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	11.00%	12.00%	12.00%	10.00%
Asia Pacific
Disaggregation Of Revenue [Line Items]
Revenues	$ 7,949	$ 4,927	$ 19,332	$ 15,070
Asia Pacific | Sales Revenue, Product Line | Geographic Concentration Risk
Disaggregation Of Revenue [Line Items]
Concentration risk, percentage	10.00%	7.00%	8.00%	8.00%

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Revenues from Contracts with Customers - Summary of Contract Balances (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Revenue From Contract With Customer [Abstract]
Trade accounts receivable, net of allowance for credit losses	$ 69,580	$ 56,798
Deferred revenues	7,257	6,471
Deferred revenues	5,308	4,448
Refund liability	$ 2,480	$ 2,416

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Revenues from Contracts with Customers - Additional Information (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) Customer	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Customer
Revenue From Contract With Customer [Line Items]
Deferred revenue	$ 12.6		$ 12.6		$ 10.9
Revenue remaining performance obligation	7.3		7.3		$ 6.5
Revenue recognized	$ 1.8	$ 1.5	$ 5.4	$ 6.3
Revenue practical expedient, incremental cost of obtaining contract [true/false]			true
Minimum
Revenue From Contract With Customer [Line Items]
Collection period for trade accounts receivable			30 days
Maximum
Revenue From Contract With Customer [Line Items]
Collection period for trade accounts receivable			60 days
Customer Concentration Risk | Accounts Receivables
Revenue From Contract With Customer [Line Items]
Number of customers | Customer			1		2
Customer Concentration Risk | Accounts Receivables | Customer A
Revenue From Contract With Customer [Line Items]
Concentration risk, percentage			10.00%		10.00%
Customer Concentration Risk | Accounts Receivables | Customer B
Revenue From Contract With Customer [Line Items]
Concentration risk, percentage					10.00%

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Revenues from Contracts with Customers - Additional Information (Details 1)	Sep. 30, 2021	Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligation expected to be recognized period		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-10-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Remaining performance obligation expected to be recognized period	1 year

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Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating lease cost	$ 630	$ 643	$ 1,981	$ 1,935
Short-term lease cost	82	96	222	245
Variable lease costs	125	67	354	282
Total lease expense	$ 837	$ 806	$ 2,557	$ 2,462

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Leases - Supplemental Balance Sheet Information related to Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating leases:
Operating lease assets	$ 5,227	$ 5,083
Current lease liabilities	$ 1,638	$ 2,167
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities
Noncurrent operating lease liabilities	$ 3,999	$ 3,332
Weighted average remaining lease term (years):
Operating leases	3 years 7 months 17 days	3 years 4 months 6 days
Weighted average discount rate:
Operating leases	5.76%	8.36%

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Leases - Supplemental Cash Flow Information related to Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Supplemental cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$ 1,976	$ 1,937

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Leases - Additional Information (Details)	9 Months Ended
	Sep. 30, 2021
Leases [Line Items]
Lessee operating lease option to extend	true
Lessee not yet commenced, description	As of September 30, 2021, the Company did not have any leases that have not yet commenced.
Minimum
Leases [Line Items]
Lessee operating lease term of contract	1 year
Lessee operating lease option to extend period	1 year
Maximum
Leases [Line Items]
Lessee operating lease term of contract	5 years
Lessee operating lease option to extend period	4 years

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Leases - Remaining Maturities on Lease Liabilities (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Leases [Abstract]
2021 (October - December)	$ 594
2022	1,852
2023	1,787
2024	1,022
2025	786
Thereafter	405
Total lease payments	6,446
Less: interest	809
Present value of lease liabilities	$ 5,637

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Related Party Transactions - Additional Information (Details) - USD ($)	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Vector Capital Management L.P.
Related Party Transaction [Line Items]
Related party transactions	$ 0	$ 0