Airgain (AIRG) 10-Q14 Nov 172017 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2017	Nov. 13, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Trading Symbol	AIRG
Entity Registrant Name	AIRGAIN INC
Entity Central Index Key	1,272,842
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		9,578,738

Unaudited Condensed Balance She

Unaudited Condensed Balance Sheets - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 18,165,647	$ 45,161,403
Short term investments	18,463,148
Trade accounts receivable, net	7,708,893	5,154,996
Inventory	609,850	146,815
Prepaid expenses and other current assets	749,074	349,550
Total current assets	45,696,612	50,812,764
Property and equipment, net	1,069,149	807,086
Goodwill	4,080,447	1,249,956
Customer relationships, net	3,832,501	2,822,918
Intangible assets, net	1,100,930	286,719
Other assets	186,042	84,060
Total assets	55,965,681	56,063,503
Current liabilities:
Accounts payable	3,947,772	3,949,005
Accrued bonus	1,665,411	1,748,551
Accrued liabilities	1,088,385	1,072,242
Deferred purchase price	1,000,000	1,000,000
Current portion of long-term notes payable	1,333,333	1,388,563
Current portion of deferred rent obligation under operating lease	81,332	81,332
Total current liabilities	9,116,233	9,239,693
Long-term notes payable	333,333	1,333,333
Deferred tax liability	73,875	6,166
Deferred rent obligation under operating lease	359,693	451,909
Total liabilities	9,883,134	11,031,101
Stockholders’ equity:
Common shares, par value $0.0001, 200,000,000 shares authorized at September 30, 2017 and December 31, 2016; 9,577,530 and 9,275,062 shares issued at September 30, 2017 and December 31, 2016, respectively; 9,525,330 and 9,275,062 shares outstanding at September 30, 2017 and December 31, 2016, respectively	957	928
Additional paid in capital	89,553,782	88,582,470
Treasury stock, at cost: 52,200 shares and no shares at September 30, 2017 and December 31, 2016, respectively	(468,823)
Accumulated other comprehensive loss	(1,696)
Accumulated deficit	(43,001,673)	(43,550,996)
Total stockholders’ equity	46,082,547	45,032,402
Commitments and contingencies (note 14)
Total liabilities and stockholders’ equity	$ 55,965,681	$ 56,063,503

Unaudited Condensed Balance Sh3

Unaudited Condensed Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2017	Dec. 31, 2016
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	9,577,530	9,275,062
Common stock, shares outstanding	9,525,330	9,275,062
Treasury stock, shares at cost	52,200	0

Unaudited Condensed Statements

Unaudited Condensed Statements of Operations - USD ($)	3 Months Ended		9 Months Ended
Unaudited Condensed Statements of Operations - USD ($)	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Sales	$ 12,448,436	$ 12,439,279	$ 36,713,996	$ 30,807,902
Cost of goods sold	6,444,544	6,862,992	19,300,120	17,007,228
Gross profit	6,003,892	5,576,287	17,413,876	13,800,674
Operating expenses:
Research and development	2,094,774	1,432,581	5,510,861	4,096,670
Sales and marketing	1,809,037	1,453,391	5,229,188	4,078,250
General and administrative	1,899,449	1,459,993	6,174,869	3,304,790
Total operating expenses	5,803,260	4,345,965	16,914,918	11,479,710
Income from operations	200,632	1,230,322	498,958	2,320,964
Other expense (income):
Interest income	(98,689)	(1,735)	(189,855)	(1,735)
Interest expense	22,762	41,735	80,239	141,505
Fair market value adjustment - warrants				(460,289)
Total other expense (income)	(75,927)	40,000	(109,616)	(320,519)
Income before income taxes	276,559	1,190,322	608,574	2,641,483
Provision for income taxes	42,206	7,278	59,251	8,078
Net income	234,353	1,183,044	549,323	2,633,405
Accretion of dividends on preferred convertible stock		(322,170)		(1,537,021)
Net income attributable to common stockholders	$ 234,353	$ 860,874	$ 549,323	$ 1,096,384
Net income per share:
Basic	$ 0.02	$ 0.21	$ 0.06	$ 0.59
Diluted	$ 0.02	$ 0.16	$ 0.05	$ 0.25
Weighted average shares used in calculating income per share:
Basic	9,545,235	4,133,020	9,475,708	1,849,647
Diluted	10,169,559	6,689,332	10,238,987	3,103,784

Unaudited Condensed Statement o

Unaudited Condensed Statement of Comprehensive Income - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 234,353	$ 1,183,044	$ 549,323	$ 2,633,405
Unrealized loss on available-for-sale securities	(1,696)		(1,696)
Total comprehensive income	$ 232,657	$ 1,183,044	$ 547,627	$ 2,633,405

Unaudited Condensed Statement 6

Unaudited Condensed Statement of Stockholders' Equity - 9 months ended Sep. 30, 2017 - USD ($)	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance at Dec. 31, 2016	$ 45,032,402	$ 928	$ 88,582,470			$ (43,550,996)
Beginning balance, shares at Dec. 31, 2016		9,275,062
Stock-based compensation	463,856		463,856
Exercise of stock options	$ 506,704	$ 24	506,680
Exercise of stock options, shares	244,993	244,993
Shares issued pursuant to stock awards		$ 5	(5)
Shares issued pursuant to stock awards, shares		57,475
Common stock repurchases	$ (468,823)			$ (468,823)
Common stock repurchases, shares		(52,200)
Reversal of costs related to secondary offering	781		781
Unrealized loss on available-for-sale securities	(1,696)				$ (1,696)
Net income	549,323					549,323
Ending balance at Sep. 30, 2017	$ 46,082,547	$ 957	$ 89,553,782	$ (468,823)	$ (1,696)	$ (43,001,673)
Ending balance, shares at Sep. 30, 2017		9,525,330

Unaudited Condensed Statements7

Unaudited Condensed Statements of Cash Flows - USD ($)	9 Months Ended
Unaudited Condensed Statements of Cash Flows - USD ($)	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 549,323	$ 2,633,405
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation	336,817	357,425
Amortization	396,206	276,004
Fair market value adjustment - warrants		(460,289)
Amortization of discounts on investments, net	(23,683)
Stock-based compensation	463,856	224,039
Deferred tax liability	67,709
Changes in operating assets and liabilities:
Trade accounts receivable	(1,969,507)	(2,034,467)
Inventory	(30,265)	14,714
Prepaid expenses and other assets	(501,506)	(214,574)
Accounts payable	(123,112)	1,309,924
Accrued bonus	(83,140)	(193,257)
Accrued liabilities	16,143	135,046
Deferred obligation under operating lease	(92,216)	(80,049)
Net cash provided by (used in) operating activities	(993,375)	1,967,921
Cash flows from investing activities:
Purchases of available-for-sale securities	(18,441,161)
Cash paid for acquisition	(6,348,730)
Purchases of property and equipment	(195,922)	(275,649)
Net cash used in investing activities	(24,985,813)	(275,649)
Cash flows from financing activities:
Repayment of notes payable	(1,055,230)	(1,216,928)
Proceeds from initial public offering		13,600,800
Costs related to initial public offering	781	(2,697,853)
Common stock repurchases	(468,823)
Proceeds from exercise of stock options	506,704	112,100
Net cash provided by (used in) financing activities	(1,016,568)	9,798,119
Net increase (decrease) in cash and cash equivalents	(26,995,756)	11,490,391
Cash and cash equivalents, beginning of period	45,161,403	5,335,913
Cash and cash equivalents, end of period	18,165,647	16,826,304
Supplemental disclosure of cash flow information
Interest paid	85,085	141,505
Taxes paid	$ 114,639
Supplemental disclosure of non-cash investing and financing activities:
Accretion of Series E, F, and G preferred redeemable convertible stock to redemption amount		1,356,707
Conversion of warrants		249,215
Conversion of preferred stock into common stock		50,432,161
Issuance of warrants to underwriters in connection with initial public offering		$ 126,218

Basis of Presentation

Basis of Presentation	9 Months Ended
Basis of Presentation	Sep. 30, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	Note 1. Basis of Presentation Business Description Airgain, Inc. (the Company) was incorporated in the State of California on March 20, 1995, and reincorporated in the State of Delaware on August 15, 2016. The Company is a leading provider of advanced antenna technologies used to enable high performance wireless networking across a broad range of home, enterprise, and industrial devices. The Company designs, develops, and engineers its antenna products for original equipment and design manufacturers worldwide. Additionally, the Company designs and manufactures antennas for cellular, Long-Term Evolution (LTE), Multiple Input Multiple Output (MIMO), Global Positioning System (GPS), Wi-Fi and most radio frequencies. The Company’s main office is in San Diego, California with office space and research facilities in San Diego, California, Rancho Santa Fe, California, Poway, California, Melbourne, Florida, Taipei, Taiwan, Shenzhen and Jiangsu, China and Cambridgeshire, United Kingdom and a design and manufacturing plant/facility in Scottsdale, Arizona. Basis of Presentation The accompanying unaudited condensed financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Interim financial results are not necessarily indicative of results anticipated for the full year. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016, from which the balance sheet information herein was derived. The condensed balance sheet as of December 31, 2016 included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP. The condensed statements of operations for the three and nine months ended September 30, 2017 and September 30, 2016, and the balance sheet data as of September 30, 2017 have been prepared on the same basis as the audited financial statements. In the opinion of management, the accompanying unaudited condensed financial statements reflect all adjustments, consisting of normal and recurring adjustments, necessary for a fair presentation of results of the Company’s operations and financial position for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2017 or for any future period. Segment Information The Company’s operations are located primarily in the United States, and most of its assets are located in San Diego, California and Scottsdale, Arizona. The Company operates in one segment related to the sale of antenna products. The Company’s chief operating decision-maker is its chief executive officer, who reviews operating results on an aggregate basis and manages the Company’s opertions as a single operating segment. Initial Public Offering On August 17, 2016, the Company completed its initial public offering (IPO) in which it issued and sold 1.5 million shares of common stock at a public offering price of $8.00 per share. The Company received net proceeds of approximately $9.5 million after deducting underwriting discounts and commissions of $0.8 million and offering-related transaction costs of approximately $1.7 million. Upon the closing of the IPO, all shares of the Company’s then-outstanding preferred redeemable convertible stock and preferred convertible stock automatically converted into an aggregate of 3,080,733 shares of common stock and the Company issued 1,957,207 shares of common stock in satisfaction of accumulated dividends. Additionally, the Company reduced the number of preferred shares authorized to a total of 10,000,000 shares. On August 29, 2016, the underwriters exercised their over-allotment option to purchase an additional 200,100 shares of common stock at the public offering price of $8.00 per share, which resulted in net proceeds to the Company of approximately $1.5 million, after deducting underwriting discounts, commissions and estimated offering-related transaction costs of approximately $0.1 million. On December 8, 2016, the Company completed a public offering of common stock in which it issued and sold 1,352,941 shares of common stock at a public offering price of $17.00 per share and received gross proceeds of $23.0 million, which resulted in net proceeds to the Company of approximately $20.7 million, after deducting underwriting discounts and commissions of approximately $1.5 million and offering-related transaction costs of approximately $0.8 million. On December 14, 2016, the underwriters exercised their over-allotment option to purchase an additional 332,941 shares of common stock at the public offering price of $17.00 per share and the Company received gross proceeds of approximately $5.6 million, which resulted in net proceeds to the Company of approximately $5.3 million, after deducting underwriting discounts and commissions of approximately $0.3 million and offering-related transaction costs. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include valuation of the stock-based compensation expense, intangible assets and goodwill. Fair Value Measurements The carrying values of the Company’s financial instruments, including cash and cash equivalents, trade accounts receivable, accounts payable, accrued liabilities and debt approximate their fair values due to the short maturity of these instruments. Fair value measurements are market-based measurements, not entity-specific measurements. Therefore, fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. The Company follows a three-level hierarchy to prioritize the inputs used in the valuation techniques to derive fair values. The basis for fair value measurements for each level within the hierarchy is described below: • Level 1: Quoted prices in active markets for identical assets or liabilities. • Level 2: Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are observable in active markets. • Level 3: Valuations derived from valuation techniques in which one or more significant inputs are unobservable in active markets. The Company’s accounting policy is to recognize transfers between levels of the fair value hierarchy on the date of the event or change in circumstances that caused the transfer. There were no transfers into or out of Level 1, Level 2, or Level 3 for the nine months ended September 30, 2017 and for the year ended December 31, 2016. Cash Equivalents and Short-Term Investments Cash equivalents are comprised of short-term, highly liquid investments with maturities of 90 days or less at the date of purchase. Short-term investments consist predominantly of commercial paper, corporate debt securities, U.S. Treasury securities and asset backed securities. The Company classifies short-term investments based on the facts and circumstances surrounding the investments at the time of purchase and evaluates such classification as of each balance sheet date. All short-term investments are classified as available-for-sale securities as of September 30, 2017 and are recorded at estimated fair value. Unrealized gains and losses for available-for-sale securities are included in accumulated other comprehensive income (loss), a component of stockholders’ equity. Realized gains and losses are included in other expense (income), in the unaudited condensed statement of operations. The Company evaluates its investments to determine whether those with unrealized loss positions are other than temporarily impaired. Impairments are considered to be other than temporary if they are related to deterioration in credit risk or if it is likely that the Company will sell the securities before recovery of their cost basis. Inventory The majority of the Company’s products are manufactured by third parties that retain ownership of the inventory until title is transferred to the customer at the shipping point. In certain instances, shipping terms are delivery at place and the Company is responsible for arranging transportation and delivery of goods ready for unloading at the named place. The Company bears all risk involved in bringing the goods to the named place and records the related inventory in transit to the customer as inventory on the accompanying balance sheet. With the acquisition of substantially all of the assets of Antenna Plus, LLC (“Antenna Plus”), in April 2017, the Company began manufacting products at its Scottsdale, Arizona and Shullsburg, Wisconsin locations. In July 2017, the Company relocated all of its product manufacturing produced in Shullsburg, Wisconsin to the Scottsadale, Arizona facility. See Note 6 for additional information relating to the Company’s acquisition of the Antenna Plus assets. Inventory is stated at the lower of cost or market. For items manufactured by the Company, cost is determined using the weighted average cost method. For items manufactured by third parties, cost is determined using the first-in, first-out method (FIFO). Any adjustments to reduce the cost of inventories to their net realizable value are recognized in earnings in the current period. As of September 30, 2017, the Company’s inventories consist primarily of raw materials. Accumulated Other Comprehensive Income Comprehensive income is comprised of net income and other comprehensive income. Accumulated other comprehensive income on the unaudited condensed balance sheet at September 30, 2017 includes unrealized gains and losses on the Company’s available-for-sale securities.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
Summary of Significant Accounting Policies	Sep. 30, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2. Summary of Significant Accounting Policies During the three and nine months ended September 30, 2017, there have been no material changes to the Company’s significant accounting policies as described in the Annual Report on Form 10-K for the fiscal year ended December 31, 2016. Recent Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Updated (ASU) No. 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities In July 2015, the FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers

Net Income Per Share

Net Income Per Share	9 Months Ended
Net Income Per Share	Sep. 30, 2017
Earnings Per Share [Abstract]
Net Income Per Share	Note 3. Net Income Per Share Basic net income per share is calculated by dividing net income available to common stockholders by the weighted average shares of common stock outstanding for the period. The per share computations reflect the one-for-ten reverse stock split that was effected in July 2016. Diluted net income per share is calculated by dividing net income by the weighted average shares of common stock outstanding for the period plus amounts representing the dilutive effect of securities that are convertible into common stock. Preferred dividends are deducted from net income in arriving at net income attributable to common stockholders. The Company calculates diluted earnings per common share using the treasury stock method and the as-if-converted method, as applicable. The following table presents the computation of net income per share: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Numerator: Net income $ 234,353 $ 1,183,044 $ 549,323 $ 2,633,405 Accretion of dividends on preferred stock — (322,170 ) — (1,537,021 ) Net income attributable to common stockholders - basic $ 234,353 $ 860,874 $ 549,323 $ 1,096,384 Accretion of dividends on preferred stock — 186,868 — 125,205 Adjustment for change in fair value of warrant liability — — — (460,289 ) Net income attributable to common stockholders - diluted $ 234,353 $ 1,047,742 $ 549,323 $ 761,300 Denominator: Weighted average common shares outstanding Basic 9,545,235 4,133,020 9,475,708 1,849,647 Diluted 10,169,559 6,689,332 10,238,987 3,103,784 Net income per share: Basic $ 0.02 $ 0.21 $ 0.06 $ 0.59 Diluted $ 0.02 $ 0.16 $ 0.05 $ 0.25 Diluted weighted average common shares outstanding for the three months ended September 30, 2017 includes 624,324 options outstanding. Diluted weighted average common shares outstanding for the nine months ended September 30, 2017 includes 6,281 warrants and 756,998 options outstanding. Potentially dilutive securities not included in the calculation of diluted net income per share because to do so would be anti-dilutive are as follows (in common stock equivalent shares): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Preferred redeemable convertible stock, including accumulated dividends — 788,074 — 3,253,254 Employee stock options 375,277 — 427,645 — Warrants outstanding 51,003 51,003 — 51,003 Total 426,280 839,077 427,645 3,304,257

Cash, Cash Equivalents and Shor

Cash, Cash Equivalents and Short-Term Investments	9 Months Ended
Cash, Cash Equivalents and Short-Term Investments	Sep. 30, 2017
Cash And Cash Equivalents [Abstract]
Cash, Cash Equivalents and Short-Term Investments	Note 4. Cash, Cash Equivalents and Short-Term Investments The following table shows the Company’s cash and cash equivalents and short-term investments by significant investment category as of September 30, 2017: September 30, 2017 Amortized Cost Gross Unrealized Losses Estimated Fair Value Cash and Cash Equivalents Short-Term Investments Cash $ 1,309,876 $ — $ 1,309,876 $ 1,309,876 $ — Level 1 (1): Money market funds 13,855,588 — 13,855,588 13,855,588 — U.S. treasury securities 1,234,813 (88 ) 1,234,725 — 1,234,725 Subtotal 15,090,401 (88 ) 15,090,313 13,855,588 1,234,725 Level 2 (2): Commercial paper 10,430,502 — 10,430,502 — 10,430,502 Corporate debt obligations 6,049,066 (1,458 ) 6,047,608 — 6,047,608 Repurchase agreements 3,000,183 — 3,000,183 3,000,183 — Asset-backed securities 750,463 (150 ) 750,313 — 750,313 Subtotal 20,230,214 (1,608 ) 20,228,606 3,000,183 17,228,423 Total $ 36,630,491 $ (1,696 ) $ 36,628,795 $ 18,165,647 $ 18,463,148 (1) Level 1 fair value estimates are based on quoted prices in active markets for identical assets or liabilities. (2) Level 2 fair value estimates are based on observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. The Company’s investments were primarily valued based upon one or more valuations reported by its investment accounting and reporting service provider. The investment service provider values the securities using a hierarchical security pricing model that relies primarily on valuations provided by a third-party pricing vendor. Such valuations may be based on trade prices in active markets for identical assets or liabilities (Level 1 inputs) or valuation models using inputs that are observable either directly or indirectly (Level 2 inputs), such as quoted prices for similar assets or liabilities, yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for underlying instruments or debt, broker and dealer quotes, as well as other relevant economic measures. The Company performs certain procedures to corroborate the fair value of its holdings, including comparing valuations obtained from its investment service provider with other pricing sources to validate the reasonableness of the valuations. The Company typically invests in highly-rated securities, and its investment policy limits the amount of credit exposure to any one issuer. The policy requires investments in fixed income instruments denominated and payable in U.S. dollars only and requires investments to be investment grade, with a primary objective of minimizing the potential risk of principal loss. The following table presents the Company’s short-term investments with unrealized losses by investment category and length of time that individual securities have been in a continuous unrealized loss position as of September 30, 2017: Less Than 12 Months Description of Securities Estimated Fair Value Unrealized Losses September 30, 2017 U.S. treasury securities $ 1,234,725 $ (88 ) Corporate debt obligations 6,047,607 (1,458 ) Asset-backed securities 750,313 (150 ) Total $ 8,032,645 $ (1,696 ) The Company considers the declines in market value of its short-term investments to be temporary in nature. Fair values were determined for each individual security in the investment portfolio. When evaluating an investment for other-than-temporary impairment, the Company reviews factors such as length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer and any changes thereto, changes in market interest rates and the Company’s intent to sell, or whether it is more likely than not it will be required to sell the investment before recovery of the investment’s cost basis. As of September 30, 2017, the Company does not consider any of its investments to be other-than temporarily impaired. Contractual maturities of short-term investments as of September 30, 2017 are as follows: Estimated Fair Value Due within one year $ 18,463,148 Total $ 18,463,148

Property and Equipment

Property and Equipment	9 Months Ended
Property and Equipment	Sep. 30, 2017
Property Plant And Equipment [Abstract]
Property and Equipment	Note 5. Property and Equipment Depreciation and amortization of property and equipment is calculated on the straight-line method based on estimated useful lives of six to ten years for tenant improvements and three years for all other property and equipment. Property and equipment consist of the following: September 30, December 31, 2017 2016 Lab equipment $ 1,851,722 $ 1,314,060 Computer equipment 165,415 165,415 Computer software 299,227 299,227 Furniture and fixtures 202,218 184,233 Tenant improvements 763,898 763,898 Other office equipment 63,824 20,591 3,346,304 2,747,424 Less accumulated depreciation (2,277,155 ) (1,940,338 ) $ 1,069,149 $ 807,086 Depreciation expense was $114,358 and $121,068 for the three months ended September 30, 2017 and 2016, respectively, and $336,817 and $357,425 for the nine months ended September 30, 2017 and 2016, respectively.

Acquisitions

Acquisitions	9 Months Ended
Acquisitions	Sep. 30, 2017
Business Combinations [Abstract]
Acquisition	Note 6. Acquisitions Antenna Plus On April 27, 2017, the Company completed the acquisition of substantially all of the assets of Antenna Plus. Antenna Plus is a supplier of antenna-based solutions for mobile and automotive fleet applications for government, public safety, and Industrial Internet of Things (IOT) markets. The acquisition provides leverage for the Company’s existing products into several new markets, including the fast-growing automotive fleet and industrial IOT space. The transaction was completed pursuant to an Asset Purchase Agreement with MCA Financial Group, Ltd., acting as the court-appointed receiver for Antenna Plus. Upon the closing of the transaction, the Company paid to Antenna Plus total consideration of approximately $6.3 million in cash, net of post-closing working capital adjustments. In addition, the Company assumed certain contracts and other liabilities of Antenna Plus, as expressly set forth in the Asset Purchase Agreement. The following table shows the allocation of the purchase price for Antenna Plus to the acquired identifiable assets, liabilities assumed and goodwill: Consideration: Cash $ 6,383,500 Working capital adjustments (34,770 ) Fair value of total consideration transferred $ 6,348,730 Recognized amounts of identifiable assets acquired and liabilities assumed: Accounts receivable $ 584,390 Inventory 432,770 Fixed assets 402,958 Intangible assets 2,220,000 Current liabilities (121,879 ) Total identifiable net assets acquired 3,518,239 Goodwill 2,830,491 Total $ 6,348,730 Goodwill was primarily attributable to the anticipated synergies and economies of scale expected from the operations of the combined business. The synergies include certain cost savings, operating efficiencies, and other strategic benefits projected to be achieved as a result of the acquisition. Goodwill is expected to be deductible for tax purposes. Revenue associated with the acquired Antenna Plus assets since the date of acquisition was $1.8 million and $3.3 million for the three and nine months ended September 30, 2017, respectively. Cost of goods sold associated with the acquired Antenna Plus assets since the date of acquisition was $0.8 and $1.4 million for the three and nine months ended September 30, 2017, respectively. Net income associated with the acquired Antenna Plus assets since the date of acquisition was net income of $308,750 and $11,176 for the three and nine months ended September 30, 2017, respectively. Unaudited Pro Forma Information The following unaudited pro forma financial information presents combined results of operations for each of the periods presented, as if Antenna Plus had been acquired as of the beginning of the fiscal year 2016. The pro forma information includes adjustments to amortization and depreciation for intangible assets and property, plant and equipment acquired. The pro forma data are for informational purposes only and are not necessarily indicative of the consolidated results of operations of the combined business had the acquisition actually occurred at the beginning of fiscal year 2016 or of the results of future operations of the combined business. Consequently, actual results will differ from the unaudited pro forma information presented below: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Pro forma sales $ 12,448,436 $ 14,651,565 $ 38,982,040 $ 36,914,879 Pro forma income from operations $ 200,632 $ 1,869,316 $ 1,047,435 $ 3,865,061 Pro forma net income $ 234,353 $ 1,822,045 $ 1,097,806 $ 4,177,547 Skycross On December 17, 2015, the Company executed and entered into an asset purchase agreement for certain North American assets of Skycross, Inc. (Skycross), a manufacturer of advanced antenna and radio-frequency solutions. In addition to the $4.0 million paid up front, the purchase price also included a contingent consideration arrangement. The $1.0 million of deferred consideration is payable upon the later of (i) the expiration of the Transition Services Agreement between the Company and Skycross which defines transition services to be provided by Skycross to the Company and (ii) the date on which the Company has received copies of third party approvals with respect to each customer and program that was purchased. The potential undiscounted amount of all future payments that could be required to be paid under the contingent consideration arrangement is between $0.0 and $1.0 million. The fair value of the contingent consideration was estimated by applying the income approach. The income approach is based on estimating the value of the present worth of future net cash flows. As of September 30, 2017, the contingent consideration was still outstanding.

Goodwill

Goodwill	9 Months Ended
Goodwill	Sep. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	Note 7. Goodwill Changes to the Company’s goodwill balance during the nine months ended September 30, 2017 and the year ended December 31, 2016 are as follows: Balance at December 31, 2015 $ 1,249,956 Current period adjustments — Balance at December 31, 2016 $ 1,249,956 Acquisition of Antenna Plus Assets 2,830,491 Balance at September 30, 2017 $ 4,080,447

Intangible Assets

Intangible Assets	9 Months Ended
Intangible Assets	Sep. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible Assets	Note 8. Intangible Assets The following is a summary of the Company’s acquired intangible assets: September 30, 2017 Weighted Average Amortization Period (years) Gross Carrying Amount Accumulated Amortization Intangibles, Net Customer relationships 10 $ 4,450,000 $ 617,499 $ 3,832,501 Developed technologies 9 1,080,000 109,463 970,537 Tradename 3 120,000 16,667 103,333 Non-compete agreement 3 67,000 39,940 27,060 Total intangible assets, net 10 $ 5,717,000 $ 783,569 $ 4,933,431 December 31, 2016 Weighted Average Amortization Period (years) Gross Carrying Amount Accumulated Amortization Intangibles, Net Customer relationships 10 $ 3,150,000 $ 327,082 $ 2,822,918 Developed technologies 5 280,000 37,091 242,909 Non-compete agreement 3 67,000 23,190 43,810 Total intangible assets, net 10 $ 3,497,000 $ 387,363 $ 3,109,637 The estimated annual amortization of intangible assets for the next five years and thereafter is shown in the following table. Actual amortization expense to be reported in future periods could differ from these estimates as a result of acquisitions, divestitures, asset impairments, among other factors. Amortization expense was $74,402 and $93,338 for the three months ended September 30, 2017 and 2016, respectively, and $396,206 and $276,004 for the nine months ended September 30, 2017 and 2016, respectively. Estimated Future Amortization 2017 (remaining three months) $ 159,846 2018 638,529 2019 617,052 2020 589,667 2021 560,420 Thereafter 2,367,917 Total $ 4,933,431

Long-term Notes Payable (includ

Long-term Notes Payable (including current portion) and Line of Credit	9 Months Ended
	Sep. 30, 2017
Long Term Debt [Abstract]
Long-term Notes Payable (including current portion) and Line of Credit	Note 9. Long-term Notes Payable (including current portion) and Line of Credit In June 2012, the Company amended its line of credit with Silicon Valley Bank. The amended revolving line of credit facility allows for an advance up to $3.0 million. The facility bears interest at the U.S. prime rate (4.25% as of September 30, 2017) plus 1.25%. The revolving facility is available as long as the Company maintains a liquidity ratio of cash and cash equivalents plus accounts receivable to outstanding debt under the facility of 1.25 to 1.00; otherwise, the facility reverts to its previous eligible receivables financing arrangement. The amended facility matures in April 2018. The bank has a first security interest in all the Company’s assets excluding intellectual property, for which the bank has received a negative pledge. There was no balance owed on the line of credit as of September 30, 2017 and December 31, 2016. In December 2013, the Company further amended its revolving line of credit with Silicon Valley Bank to include a growth capital term loan of up to $750,000. The growth capital term loan required interest only payments through June 30, 2014 at which point it was to be repaid in 32 equal monthly installments of interest and principal. The growth capital term loan matured on February 1, 2017, at which time $55,230 in principal and accrued interest was paid. The growth capital term loan interest rate was 6.5%. As of December 31, 2016, $55,230 was outstanding under this loan. As of September 30, 2017, there was no balance owed under this loan. In December 2015, the Company amended its loan and security agreement with Silicon Valley Bank to include a term loan in the amount of $4.0 million. The loan requires 36 monthly installments of interest and principal. The loan matures on December 1, 2018. Effective September 2017, the Company further amended its loan and security agreement with Silicon Valley Bank to update the financial covenants. The loan agreement requires the Company to maintain, at all times, measured as of the last day of each month (unless otherwise specified) either (i) a minimum cash balance of unrestricted cash at Silicon Valley Bank or its affiliate of not less than $25.0 million dollars or (ii) a liquidity ratio of 1.25 to 1.00 and a minimum EBITDA measured as of the last day of each fiscal quarter for the previous six month period (for September 30, 2017 the minimum EBITDA is $750,000). The interest rate is fixed at 5.0%. As of September 30, 2017 and December 31, 2016, $1,666,666 and $2,666,666 was outstanding under this loan, respectively. The remaining principal payments on the $4.0 million loan subsequent to September 30, 2017 are as follows: Year ending: 2017 $ 333,333 2018 1,333,333 $ 1,666,666 The Company was in compliance with its financial covenants in the amended and restated loan and security agreement pertaining to the revolving credit line, growth capital term loan and the additional term loan as of September 30, 2017.

Treasury Stock

Treasury Stock	9 Months Ended
Treasury Stock	Sep. 30, 2017
Equity [Abstract]
Treasury Stock	Note 10. Treasury Stock In August 2017, the Company’s Board of Directors approved a share repurchase program pursuant to which the Company may purchase up to $7 million of shares of its common stock over the following twelve months. The repurchases under the new share repurchase program are made from time to time in the open market or in privately negotiated transactions and are funded from the Company’s working capital. Repurchases will be made in compliance with Rule 10b-18 of the Securities Exchange Act of 1934, as amended, subject to market conditions, available liquidity, cash flow, applicable legal requirements and other factors. All shares of common stock repurchased under the Company’s new share repurchase program will be returned to the status of authorized but unissued shares of common stock. During the three and nine months ended September 30, 2017, the Company repurchased 52,200 shares of common stock under the repurchase program. These shares were repurchased at an average price per share of $8.98 per share, for a total cost of $468,823.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Note 11. Income Taxes The Company’s effective income tax rate was 15.26% and 9.74% for the three and nine months ended September 30, 2017, respectively. The variance from the U.S. federal statutory tax rate of 34% was primarily attributable to the valuation allowance offsetting the Company’s deferred tax assets. Management assesses its deferred tax assets quarterly to determine whether all or any portion of the asset is more likely than not unrealizable under Accounting Standards Codification (ASC) Topic 740. The Company is required to establish a valuation allowance for any portion of the asset that management concludes is more likely than not to be unrealizable. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. The Company’s assessment considers all evidence, both positive and negative, including the nature, frequency and severity of any current and cumulative losses, taxable income in carryback years, the scheduled reversal of deferred tax liabilities, tax planning strategies, and projected future taxable income in making this assessment. At September 30, 2017 and December 31, 2016, the Company has a full valuation allowance against net deferred tax assets, excluding naked credits. Should the Company continue to achieve substantial pre-tax income during 2017 or be better able to forecast taxable income into the future, the Company may need to release a substantial portion of its federal valuation allowance during 2017. FASB ASC Topic 740, Income Taxes

Stockholders' Equity

Stockholders' Equity	9 Months Ended
Stockholders' Equity	Sep. 30, 2017
Class Of Stock Disclosures [Abstract]
Stockholders' Equity	Note 12. Stockholders’ Equity Shares Reserved for Future Issuance The following common stock is reserved for future issuance at September 30, 2017 and December 31, 2016: September 30, 2017 (1) December Warrants issued and outstanding 51,003 51,003 Stock option awards issued and outstanding 1,222,089 1,040,387 Authorized for grants under the 2016 Equity Incentive Plan 253,601 709,750 Authorized for grants under the 2016 Employee Stock Purchase Plan 100,000 100,000 1,626,693 1,901,140 (1) Treasury stock in the amount of 52,200 are excluded from the table above.

Stock Options

Stock Options	9 Months Ended
Stock Options	Sep. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Options	Note 13. Stock Options The following table summarizes the outstanding stock option activity during the periods indicated: Number of shares Weighted average exercise price Weighted average remaining contractual term Balance at December 31, 2016 1,040,387 2.25 7.80 Granted 456,144 14.89 9.37 Exercised (244,993 ) 2.07 5.61 Expired/Forfeited (29,449 ) 6.99 0.05 Balance at September 30, 2017 1,222,089 $ 6.89 8.25 Vested and exercisable at September 30, 2017 518,126 $ 2.07 7.03 Vested and expected to vest at September 30, 2017 1,222,089 $ 6.89 8.25 The weighted average grant-date fair value of options granted during the nine months ended September 30, 2017 and for the year ended December 31, 2016 was $6.06 and $1.23, respectively. For fully vested stock options, the aggregate intrinsic value as of September 30, 2017 and December 31, 2016 was $3,651,672 and $7,770,086, respectively. For stock options expected to vest, the aggregate intrinsic value as of September 30, 2017 and December 31, 2016 was $1,722,060 and $4,569,243, respectively. During the year ended December 31, 2016, a total of 57,475 shares of restricted common stock with a fair value of $2.00 per share were issued to the Company’s Chief Financial Officer and Chief Operating Officer of which 100% of the shares vested six months after the completion of an initial public offering, or February 2017. The Company recorded $53,056 and $61,894 in expense associated with these shares during the nine months ended September 30, 2017 and the year ended December 31, 2016, respectively. At September 30, 2017 and December 31, 2016 there was $2,640,992 and $522,818, respectively, of total unrecognized compensation cost related to unvested stock options and restricted stock granted under the plans. These costs are expected to be recognized over the next three years and is based on the date the options were granted. The Company currently uses authorized and unissued shares to satisfy share award exercises.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Sep. 30, 2017
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 14. Commitments and Contingencies Operating Leases The Company has entered into lease agreements for office space and research facilities in San Diego, California, Rancho Santa Fe, California, Poway, California, Melbourne, Florida, Taipei, Taiwan, Shenzhen and Jiangsu, China, and Cambridgeshire, United Kingdom, and for a manufacturing plant/facility in Scottsdale, Arizona. Rent expense was $223,866 and $185,654 for the three months ended September 30, 2017 and 2016, respectively, and $615,176 and $554,804 for the nine months ended September 30, 2017 and 2016, respectively. The longest lease expires in June 2020. The Company moved into its facility in San Diego, California during the year ended December 31, 2014. The San Diego facility lease agreement included a tenant improvement allowance which provided for the landlord to pay for tenant improvements on behalf of the Company up to $515,000. Based on the terms of this landlord incentive and involvement of the Company in the construction process, the leasehold improvements purchased under the landlord incentive were determined to be property of the Company. The future minimum lease payments required under operating leases in effect at September 30, 2017 were as follows: Year ending: 2017 (remaining three months) $ 216,714 2018 770,606 2019 555,660 2020 265,940 $ 1,808,920

Concentration of Credit Risk

Concentration of Credit Risk	9 Months Ended
Concentration of Credit Risk	Sep. 30, 2017
Risks And Uncertainties [Abstract]
Concentration of Credit Risk	Note 15. Concentration of Credit Risk (a) Concentration of Sales and Accounts Receivable The following represents customers that accounted for 10% or more of total revenue during the three and nine months ended September 30, 2017 and 2016 and customers that accounted for 10% or more of total trade accounts receivable at September 30, 2017 and 2016. Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Percentage of net revenue Customer A 24 % 20 % 22 % 18 % Customer B 14 30 14 31 Customer C 11 8 11 7 As of September 30, 2017 2016 Percentage of gross trade accounts receivable Customer A 22 % 12 % Customer B 16 12 Customer C 10 1 Customer D 9 24 (b) Revenue by Geography Net revenue by geographic area are as follows. Revenue is attributed by geographic location based on the bill-to location of the Company’s customers. Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Percentage of net revenue China 71 % 69 % 71 % 72 % Other Asia 4 14 10 12 North America 19 12 13 11 Europe 6 5 6 5 Although the Company ships the majority of antennas to its customers in China (primarily Original Design Manufacturers and distributors), the end-users of the Company’s products are much more geographically diverse. (c) Concentration of Purchases During the three and nine months ended September 30, 2017 and 2016, all the Company’s products were manufactured by two vendors in China and by the Company’s facilities in Wisconsin and Arizona.

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
Basis of Presentation (Policies)	Sep. 30, 2017
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Interim financial results are not necessarily indicative of results anticipated for the full year. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2016, from which the balance sheet information herein was derived. The condensed balance sheet as of December 31, 2016 included herein was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP. The condensed statements of operations for the three and nine months ended September 30, 2017 and September 30, 2016, and the balance sheet data as of September 30, 2017 have been prepared on the same basis as the audited financial statements. In the opinion of management, the accompanying unaudited condensed financial statements reflect all adjustments, consisting of normal and recurring adjustments, necessary for a fair presentation of results of the Company’s operations and financial position for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2017 or for any future period.
Segment Information	Segment Information The Company’s operations are located primarily in the United States, and most of its assets are located in San Diego, California and Scottsdale, Arizona. The Company operates in one segment related to the sale of antenna products. The Company’s chief operating decision-maker is its chief executive officer, who reviews operating results on an aggregate basis and manages the Company’s opertions as a single operating segment.
Initial Public Offering	Initial Public Offering On August 17, 2016, the Company completed its initial public offering (IPO) in which it issued and sold 1.5 million shares of common stock at a public offering price of $8.00 per share. The Company received net proceeds of approximately $9.5 million after deducting underwriting discounts and commissions of $0.8 million and offering-related transaction costs of approximately $1.7 million. Upon the closing of the IPO, all shares of the Company’s then-outstanding preferred redeemable convertible stock and preferred convertible stock automatically converted into an aggregate of 3,080,733 shares of common stock and the Company issued 1,957,207 shares of common stock in satisfaction of accumulated dividends. Additionally, the Company reduced the number of preferred shares authorized to a total of 10,000,000 shares. On August 29, 2016, the underwriters exercised their over-allotment option to purchase an additional 200,100 shares of common stock at the public offering price of $8.00 per share, which resulted in net proceeds to the Company of approximately $1.5 million, after deducting underwriting discounts, commissions and estimated offering-related transaction costs of approximately $0.1 million. On December 8, 2016, the Company completed a public offering of common stock in which it issued and sold 1,352,941 shares of common stock at a public offering price of $17.00 per share and received gross proceeds of $23.0 million, which resulted in net proceeds to the Company of approximately $20.7 million, after deducting underwriting discounts and commissions of approximately $1.5 million and offering-related transaction costs of approximately $0.8 million. On December 14, 2016, the underwriters exercised their over-allotment option to purchase an additional 332,941 shares of common stock at the public offering price of $17.00 per share and the Company received gross proceeds of approximately $5.6 million, which resulted in net proceeds to the Company of approximately $5.3 million, after deducting underwriting discounts and commissions of approximately $0.3 million and offering-related transaction costs.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include valuation of the stock-based compensation expense, intangible assets and goodwill.
Fair Value Measurements	Fair Value Measurements The carrying values of the Company’s financial instruments, including cash and cash equivalents, trade accounts receivable, accounts payable, accrued liabilities and debt approximate their fair values due to the short maturity of these instruments. Fair value measurements are market-based measurements, not entity-specific measurements. Therefore, fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. The Company follows a three-level hierarchy to prioritize the inputs used in the valuation techniques to derive fair values. The basis for fair value measurements for each level within the hierarchy is described below: • Level 1: Quoted prices in active markets for identical assets or liabilities. • Level 2: Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are observable in active markets. • Level 3: Valuations derived from valuation techniques in which one or more significant inputs are unobservable in active markets. The Company’s accounting policy is to recognize transfers between levels of the fair value hierarchy on the date of the event or change in circumstances that caused the transfer. There were no transfers into or out of Level 1, Level 2, or Level 3 for the nine months ended September 30, 2017 and for the year ended December 31, 2016.
Cash Equivalents and Short Term Investments	Cash Equivalents and Short-Term Investments Cash equivalents are comprised of short-term, highly liquid investments with maturities of 90 days or less at the date of purchase. Short-term investments consist predominantly of commercial paper, corporate debt securities, U.S. Treasury securities and asset backed securities. The Company classifies short-term investments based on the facts and circumstances surrounding the investments at the time of purchase and evaluates such classification as of each balance sheet date. All short-term investments are classified as available-for-sale securities as of September 30, 2017 and are recorded at estimated fair value. Unrealized gains and losses for available-for-sale securities are included in accumulated other comprehensive income (loss), a component of stockholders’ equity. Realized gains and losses are included in other expense (income), in the unaudited condensed statement of operations. The Company evaluates its investments to determine whether those with unrealized loss positions are other than temporarily impaired. Impairments are considered to be other than temporary if they are related to deterioration in credit risk or if it is likely that the Company will sell the securities before recovery of their cost basis.
Inventory	Inventory The majority of the Company’s products are manufactured by third parties that retain ownership of the inventory until title is transferred to the customer at the shipping point. In certain instances, shipping terms are delivery at place and the Company is responsible for arranging transportation and delivery of goods ready for unloading at the named place. The Company bears all risk involved in bringing the goods to the named place and records the related inventory in transit to the customer as inventory on the accompanying balance sheet. With the acquisition of substantially all of the assets of Antenna Plus, LLC (“Antenna Plus”), in April 2017, the Company began manufacting products at its Scottsdale, Arizona and Shullsburg, Wisconsin locations. In July 2017, the Company relocated all of its product manufacturing produced in Shullsburg, Wisconsin to the Scottsadale, Arizona facility. See Note 6 for additional information relating to the Company’s acquisition of the Antenna Plus assets. Inventory is stated at the lower of cost or market. For items manufactured by the Company, cost is determined using the weighted average cost method. For items manufactured by third parties, cost is determined using the first-in, first-out method (FIFO). Any adjustments to reduce the cost of inventories to their net realizable value are recognized in earnings in the current period. As of September 30, 2017, the Company’s inventories consist primarily of raw materials.
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income Comprehensive income is comprised of net income and other comprehensive income. Accumulated other comprehensive income on the unaudited condensed balance sheet at September 30, 2017 includes unrealized gains and losses on the Company’s available-for-sale securities.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Updated (ASU) No. 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities In July 2015, the FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers

Net Income Per Share (Tables)

Net Income Per Share (Tables)	9 Months Ended
Net Income Per Share (Tables)	Sep. 30, 2017
Earnings Per Share [Abstract]
Summary of Computation of Net Income Per Share	The following table presents the computation of net income per share: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Numerator: Net income $ 234,353 $ 1,183,044 $ 549,323 $ 2,633,405 Accretion of dividends on preferred stock — (322,170 ) — (1,537,021 ) Net income attributable to common stockholders - basic $ 234,353 $ 860,874 $ 549,323 $ 1,096,384 Accretion of dividends on preferred stock — 186,868 — 125,205 Adjustment for change in fair value of warrant liability — — — (460,289 ) Net income attributable to common stockholders - diluted $ 234,353 $ 1,047,742 $ 549,323 $ 761,300 Denominator: Weighted average common shares outstanding Basic 9,545,235 4,133,020 9,475,708 1,849,647 Diluted 10,169,559 6,689,332 10,238,987 3,103,784 Net income per share: Basic $ 0.02 $ 0.21 $ 0.06 $ 0.59 Diluted $ 0.02 $ 0.16 $ 0.05 $ 0.25
Summary of Potentially Dilutive Securities	Potentially dilutive securities not included in the calculation of diluted net income per share because to do so would be anti-dilutive are as follows (in common stock equivalent shares): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Preferred redeemable convertible stock, including accumulated dividends — 788,074 — 3,253,254 Employee stock options 375,277 — 427,645 — Warrants outstanding 51,003 51,003 — 51,003 Total 426,280 839,077 427,645 3,304,257

Cash, Cash Equivalents and Sh25

Cash, Cash Equivalents and Short-Term Investments (Tables)	9 Months Ended
Cash, Cash Equivalents and Short-Term Investments (Tables)	Sep. 30, 2017
Cash And Cash Equivalents [Abstract]
Schedule of Cash and Cash Equivalents and Short-Term Investments by Significant Investment Category	The following table shows the Company’s cash and cash equivalents and short-term investments by significant investment category as of September 30, 2017: September 30, 2017 Amortized Cost Gross Unrealized Losses Estimated Fair Value Cash and Cash Equivalents Short-Term Investments Cash $ 1,309,876 $ — $ 1,309,876 $ 1,309,876 $ — Level 1 (1): Money market funds 13,855,588 — 13,855,588 13,855,588 — U.S. treasury securities 1,234,813 (88 ) 1,234,725 — 1,234,725 Subtotal 15,090,401 (88 ) 15,090,313 13,855,588 1,234,725 Level 2 (2): Commercial paper 10,430,502 — 10,430,502 — 10,430,502 Corporate debt obligations 6,049,066 (1,458 ) 6,047,608 — 6,047,608 Repurchase agreements 3,000,183 — 3,000,183 3,000,183 — Asset-backed securities 750,463 (150 ) 750,313 — 750,313 Subtotal 20,230,214 (1,608 ) 20,228,606 3,000,183 17,228,423 Total $ 36,630,491 $ (1,696 ) $ 36,628,795 $ 18,165,647 $ 18,463,148 (1) Level 1 fair value estimates are based on quoted prices in active markets for identical assets or liabilities. (2) Level 2 fair value estimates are based on observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Summary of Short-term Investments with Unrealized Losses	The following table presents the Company’s short-term investments with unrealized losses by investment category and length of time that individual securities have been in a continuous unrealized loss position as of September 30, 2017: Less Than 12 Months Description of Securities Estimated Fair Value Unrealized Losses September 30, 2017 U.S. treasury securities $ 1,234,725 $ (88 ) Corporate debt obligations 6,047,607 (1,458 ) Asset-backed securities 750,313 (150 ) Total $ 8,032,645 $ (1,696 )
Schedule of Contractual Maturities of Short-term Investments	Contractual maturities of short-term investments as of September 30, 2017 are as follows: Estimated Fair Value Due within one year $ 18,463,148 Total $ 18,463,148

Property and Equipment (Tables)

Property and Equipment (Tables)	9 Months Ended
Property and Equipment (Tables)	Sep. 30, 2017
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment consist of the following: September 30, December 31, 2017 2016 Lab equipment $ 1,851,722 $ 1,314,060 Computer equipment 165,415 165,415 Computer software 299,227 299,227 Furniture and fixtures 202,218 184,233 Tenant improvements 763,898 763,898 Other office equipment 63,824 20,591 3,346,304 2,747,424 Less accumulated depreciation (2,277,155 ) (1,940,338 ) $ 1,069,149 $ 807,086

Acquisitions (Tables)

Acquisitions (Tables) - Antenna Plus	9 Months Ended
Acquisitions (Tables) - Antenna Plus	Sep. 30, 2017
Business Acquisition [Line Items]
Summary of Allocation of Purchase Price for Acquired Identifiable Assets, Liabilities Assumed and Goodwill	The following table shows the allocation of the purchase price for Antenna Plus to the acquired identifiable assets, liabilities assumed and goodwill: Consideration: Cash $ 6,383,500 Working capital adjustments (34,770 ) Fair value of total consideration transferred $ 6,348,730 Recognized amounts of identifiable assets acquired and liabilities assumed: Accounts receivable $ 584,390 Inventory 432,770 Fixed assets 402,958 Intangible assets 2,220,000 Current liabilities (121,879 ) Total identifiable net assets acquired 3,518,239 Goodwill 2,830,491 Total $ 6,348,730
Summary of Unaudited Pro Forma Information	The following unaudited pro forma financial information presents combined results of operations for each of the periods presented, as if Antenna Plus had been acquired as of the beginning of the fiscal year 2016. The pro forma information includes adjustments to amortization and depreciation for intangible assets and property, plant and equipment acquired. The pro forma data are for informational purposes only and are not necessarily indicative of the consolidated results of operations of the combined business had the acquisition actually occurred at the beginning of fiscal year 2016 or of the results of future operations of the combined business. Consequently, actual results will differ from the unaudited pro forma information presented below: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Pro forma sales $ 12,448,436 $ 14,651,565 $ 38,982,040 $ 36,914,879 Pro forma income from operations $ 200,632 $ 1,869,316 $ 1,047,435 $ 3,865,061 Pro forma net income $ 234,353 $ 1,822,045 $ 1,097,806 $ 4,177,547

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
Goodwill (Tables)	Sep. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of changes in goodwill	Note 7. Goodwill Changes to the Company’s goodwill balance during the nine months ended September 30, 2017 and the year ended December 31, 2016 are as follows: Balance at December 31, 2015 $ 1,249,956 Current period adjustments — Balance at December 31, 2016 $ 1,249,956 Acquisition of Antenna Plus Assets 2,830,491 Balance at September 30, 2017 $ 4,080,447

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
Intangible Assets (Tables)	Sep. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Summary of Acquired Intangible Assets	The following is a summary of the Company’s acquired intangible assets: September 30, 2017 Weighted Average Amortization Period (years) Gross Carrying Amount Accumulated Amortization Intangibles, Net Customer relationships 10 $ 4,450,000 $ 617,499 $ 3,832,501 Developed technologies 9 1,080,000 109,463 970,537 Tradename 3 120,000 16,667 103,333 Non-compete agreement 3 67,000 39,940 27,060 Total intangible assets, net 10 $ 5,717,000 $ 783,569 $ 4,933,431 December 31, 2016 Weighted Average Amortization Period (years) Gross Carrying Amount Accumulated Amortization Intangibles, Net Customer relationships 10 $ 3,150,000 $ 327,082 $ 2,822,918 Developed technologies 5 280,000 37,091 242,909 Non-compete agreement 3 67,000 23,190 43,810 Total intangible assets, net 10 $ 3,497,000 $ 387,363 $ 3,109,637
Schedule of Estimated Annual Amortization of Intangible Assets	The estimated annual amortization of intangible assets for the next five years and thereafter is shown in the following table. Actual amortization expense to be reported in future periods could differ from these estimates as a result of acquisitions, divestitures, asset impairments, among other factors. Amortization expense was $74,402 and $93,338 for the three months ended September 30, 2017 and 2016, respectively, and $396,206 and $276,004 for the nine months ended September 30, 2017 and 2016, respectively. Estimated Future Amortization 2017 (remaining three months) $ 159,846 2018 638,529 2019 617,052 2020 589,667 2021 560,420 Thereafter 2,367,917 Total $ 4,933,431

Long-term Notes Payable (incl30

Long-term Notes Payable (including current portion) and Line of Credit (Tables)	9 Months Ended
	Sep. 30, 2017
Loan Agreement With Silicon Valley Bank
Schedule of Principal Payment of Loan	The remaining principal payments on the $4.0 million loan subsequent to September 30, 2017 are as follows: Year ending: 2017 $ 333,333 2018 1,333,333 $ 1,666,666

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
Stockholders' Equity (Tables)	Sep. 30, 2017
Class Of Stock Disclosures [Abstract]
Schedule of Common Stock Reserved for Future Issuance	The following common stock is reserved for future issuance at September 30, 2017 and December 31, 2016: September 30, 2017 (1) December Warrants issued and outstanding 51,003 51,003 Stock option awards issued and outstanding 1,222,089 1,040,387 Authorized for grants under the 2016 Equity Incentive Plan 253,601 709,750 Authorized for grants under the 2016 Employee Stock Purchase Plan 100,000 100,000 1,626,693 1,901,140 (1) Treasury stock in the amount of 52,200 are excluded from the table above.

Stock Options (Tables)

Stock Options (Tables)	9 Months Ended
Stock Options (Tables)	Sep. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Outstanding Stock Option Activity	The following table summarizes the outstanding stock option activity during the periods indicated: Number of shares Weighted average exercise price Weighted average remaining contractual term Balance at December 31, 2016 1,040,387 2.25 7.80 Granted 456,144 14.89 9.37 Exercised (244,993 ) 2.07 5.61 Expired/Forfeited (29,449 ) 6.99 0.05 Balance at September 30, 2017 1,222,089 $ 6.89 8.25 Vested and exercisable at September 30, 2017 518,126 $ 2.07 7.03 Vested and expected to vest at September 30, 2017 1,222,089 $ 6.89 8.25

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
Commitments and Contingencies (Tables)	Sep. 30, 2017
Commitments And Contingencies Disclosure [Abstract]
Schedule Future Minimum Lease Payments Under Operating Leases	The future minimum lease payments required under operating leases in effect at September 30, 2017 were as follows: Year ending: 2017 (remaining three months) $ 216,714 2018 770,606 2019 555,660 2020 265,940 $ 1,808,920

Concentration of Credit Risk (T

Concentration of Credit Risk (Tables)	9 Months Ended
Concentration of Credit Risk (Tables)	Sep. 30, 2017
Risks And Uncertainties [Abstract]
Schedule of Concentration of Sales and Accounts Receivable	The following represents customers that accounted for 10% or more of total revenue during the three and nine months ended September 30, 2017 and 2016 and customers that accounted for 10% or more of total trade accounts receivable at September 30, 2017 and 2016. Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Percentage of net revenue Customer A 24 % 20 % 22 % 18 % Customer B 14 30 14 31 Customer C 11 8 11 7 As of September 30, 2017 2016 Percentage of gross trade accounts receivable Customer A 22 % 12 % Customer B 16 12 Customer C 10 1 Customer D 9 24
Schedule of Revenue by Geographic area	Net revenue by geographic area are as follows. Revenue is attributed by geographic location based on the bill-to location of the Company’s customers. Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Percentage of net revenue China 71 % 69 % 71 % 72 % Other Asia 4 14 10 12 North America 19 12 13 11 Europe 6 5 6 5

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Details)	Dec. 14, 2016USD ($)$ / sharesshares	Dec. 08, 2016USD ($)$ / sharesshares	Aug. 29, 2016USD ($)$ / sharesshares	Aug. 17, 2016USD ($)$ / sharesshares	Sep. 30, 2017Segmentshares	Sep. 30, 2016USD ($)	Dec. 31, 2016shares
Basis Of Presentation [Line Items]
Number of operating segments \| Segment					1
Common stock, shares issued \| shares		1,352,941			9,577,530		9,275,062
Common stock, offering price per share \| $ / shares		$ 17
Net proceeds from initial public offering						$ 13,600,800
Underwriting discounts and commissions		$ 1,500,000
Offering - related transaction cost		800,000
Net proceeds on issuance of common stock after deducting underwriting discounts and commissions and estimated offering expenses/offering - related transaction cost		20,700,000
Gross proceeds from public offering		$ 23,000,000
IPO
Basis Of Presentation [Line Items]
Common stock, shares issued \| shares				1,500,000
Common stock, offering price per share \| $ / shares				$ 8
Net proceeds from initial public offering				$ 9,500,000
Underwriting discounts and commissions				800,000
Offering - related transaction cost				$ 1,700,000
Number of common stock converted from preferred stock \| shares				3,080,733
Common stock dividends, shares \| shares				1,957,207
Number of preferred stock, shares authorized \| shares				10,000,000
Over Allotment Option
Basis Of Presentation [Line Items]
Common stock, offering price per share \| $ / shares	$ 17		$ 8
Underwriting discounts and commissions	$ 300,000		$ 100,000
Common stock, shares issued \| shares	332,941		200,100
Net proceeds on issuance of common stock after deducting underwriting discounts and commissions and estimated offering expenses/offering - related transaction cost	$ 5,300,000		$ 1,500,000
Gross proceeds from public offering	$ 5,600,000

Net Income Per Share - Addition

Net Income Per Share - Additional Information (Details)	1 Months Ended	3 Months Ended		9 Months Ended
Net Income Per Share - Additional Information (Details)	Jul. 31, 2016	Sep. 30, 2017shares	Sep. 30, 2016shares	Sep. 30, 2017shares	Sep. 30, 2016shares
Net Income (Loss) Per Share [Line Items]
Reverse stock split ratio	0.1
Diluted weighted average common shares outstanding		10,169,559	6,689,332	10,238,987	3,103,784
Warrant
Net Income (Loss) Per Share [Line Items]
Diluted weighted average common shares outstanding				6,281
Options Outstanding
Net Income (Loss) Per Share [Line Items]
Diluted weighted average common shares outstanding		624,324		756,998

Net Income Per Share - Summary

Net Income Per Share - Summary of Computation of Net Income Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator:
Net income	$ 234,353	$ 1,183,044	$ 549,323	$ 2,633,405
Accretion of dividends on preferred convertible stock		(322,170)		(1,537,021)
Net income attributable to common stockholders	234,353	860,874	549,323	1,096,384
Accretion of dividends on preferred stock		186,868		125,205
Adjustment for change in fair value of warrant liability				(460,289)
Net income attributable to common stockholders - diluted	$ 234,353	$ 1,047,742	$ 549,323	$ 761,300
Weighted average shares used in calculating income per share:
Basic	9,545,235	4,133,020	9,475,708	1,849,647
Diluted	10,169,559	6,689,332	10,238,987	3,103,784
Net income per share:
Basic	$ 0.02	$ 0.21	$ 0.06	$ 0.59
Diluted	$ 0.02	$ 0.16	$ 0.05	$ 0.25

Net Income Per Share - Summar38

Net Income Per Share - Summary of Potentially Dilutive Securities (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities not included in the calculation of diluted net loss per share	426,280	839,077	427,645	3,304,257
Preferred Redeemable And Convertible Stock, Including Accumulated Dividends
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities not included in the calculation of diluted net loss per share		788,074		3,253,254
Employee Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities not included in the calculation of diluted net loss per share	375,277		427,645
Warrants outstanding
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities not included in the calculation of diluted net loss per share	51,003	51,003		51,003

Cash, Cash Equivalents and Sh39

Cash, Cash Equivalents and Short-Term Investments - Schedule of Cash and Cash Equivalents and Short-term Investments by Significant Investment Category (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Cash	$ 1,309,876
Short term investments Gross Unrealized Losses	(1,696)
Short term investments	18,463,148
Cash and cash equivalents and Short term investments, Amortized Cost	36,630,491
Cash and cash equivalents and Short term investments, Estimated Fair Value	36,628,795
Cash and cash equivalents	18,165,647	$ 45,161,403	$ 16,826,304	$ 5,335,913
Level 1
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short term investments Gross Unrealized Losses	(88)
Cash equivalents and Short term investments, Amortized Cost	15,090,401
Cash equivalents and Short term investments, Estimated Fair Value	15,090,313
Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short term investments Gross Unrealized Losses	(1,608)
Short term investments	17,228,423
Cash equivalents and Short term investments, Amortized Cost	20,230,214
Cash equivalents and Short term investments, Estimated Fair Value	20,228,606
Money Market Funds \| Level 1
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Cash equivalents	13,855,588
Repurchase Agreements \| Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Cash equivalents	3,000,183
Commercial Paper \| Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short Term Investments Amortized Cost	10,430,502
Short term investments	10,430,502
Corporate Debt Securities \| Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short Term Investments Amortized Cost	6,049,066
Short term investments Gross Unrealized Losses	(1,458)
Short term investments	6,047,608
US Treasury Securities \| Level 1
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short Term Investments Amortized Cost	1,234,813
Short term investments Gross Unrealized Losses	(88)
Short term investments	1,234,725
Asset-backed Securities \| Level 2
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Short Term Investments Amortized Cost	750,463
Short term investments Gross Unrealized Losses	(150)
Short term investments	$ 750,313

Cash, Cash Equivalents and Sh40

Cash, Cash Equivalents and Short-Term Investments - Summary of Short-term Investments with Unrealized Losses (Details)	9 Months Ended
	Sep. 30, 2017USD ($)
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Less Than 12 Months, Estimated Fair Value	$ 8,032,645
Less Than 12 Months, Unrealized Losses.	(1,696)
US Treasury Securities
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Less Than 12 Months, Estimated Fair Value	1,234,725
Less Than 12 Months, Unrealized Losses.	(88)
Corporate Debt Securities
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Less Than 12 Months, Estimated Fair Value	6,047,607
Less Than 12 Months, Unrealized Losses.	(1,458)
Asset-backed Securities
Cash, Cash Equivalents and Short-Term Investments [Line Itmes]
Less Than 12 Months, Estimated Fair Value	750,313
Less Than 12 Months, Unrealized Losses.	$ (150)

Cash, Cash Equivalents and Sh41

Cash, Cash Equivalents and Short-Term Investments - Schedule of Contractual Maturities of Short-term Investments (Details)	Sep. 30, 2017USD ($)
Investments Debt And Equity Securities [Abstract]
Due within one year	$ 18,463,148
Total	$ 18,463,148

Property and Equipment - Additi

Property and Equipment - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Property Plant And Equipment [Line Items]
Depreciation expense	$ 114,358	$ 121,068	$ 336,817	$ 357,425
Property, Plant and Equipment, Other Types
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, Useful Life			3 years
Minimum \| Tenant Improvement
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, Useful Life			6 years
Maximum \| Tenant Improvement
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, Useful Life			10 years

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 3,346,304	$ 2,747,424
Less accumulated depreciation	(2,277,155)	(1,940,338)
Property and equipment, net	1,069,149	807,086
Lab Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,851,722	1,314,060
Computer Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	165,415	165,415
Computer Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	299,227	299,227
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	202,218	184,233
Tenant Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	763,898	763,898
Other Office Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 63,824	$ 20,591

Acquisitions - Additional Infor

Acquisitions - Additional Information (Details) - USD ($)	Apr. 27, 2017	Dec. 17, 2015	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Sales			$ 12,448,436	$ 12,439,279	$ 36,713,996	$ 30,807,902
Cost of goods sold			6,444,544	6,862,992	19,300,120	17,007,228
Net income			234,353	$ 1,183,044	549,323	$ 2,633,405
Business acquisition up front payment					6,348,730
Antenna Plus
Business Acquisition [Line Items]
Total consideration paid in cash	$ 6,348,730
Sales			1,800,000		3,300,000
Cost of goods sold			800,000		1,400,000
Net income			$ 308,750		$ 11,176
Business acquisition pro forma information description					The pro forma information includes adjustments to amortization and depreciation for intangible assets and property, plant and equipment acquired. The pro forma data are for informational purposes only and are not necessarily indicative of the consolidated results of operations of the combined business had the acquisition actually occurred at the beginning of fiscal year 2016 or of the results of future operations of the combined business.
Business acquisition up front payment	$ 6,383,500
Skycross, Inc.
Business Acquisition [Line Items]
Date of asset purchase agreement					Dec. 17, 2015
Business acquisition up front payment		$ 4,000,000
Business combination, contingent consideration arrangements, description					The $1.0 million of deferred consideration is payable upon the later of (i) the expiration of the Transition Services Agreement between the Company and Skycross which defines transition services to be provided by Skycross to the Company and (ii) the date on which the Company has received copies of third party approvals with respect to each customer and program that was purchased.
Contingent consideration arrangement		1,000,000
Amount to be paid under contingent consideration arrangements, value, low		0
Amount to be paid under contingent consideration arrangements, value, high		$ 1,000,000

Acquisitions - Summary of Alloc

Acquisitions - Summary of Allocation of Purchase Price for Acquired Identifiable Assets, Liabilities Assumed and Goodwill (Details) - USD ($)	Apr. 27, 2017	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Consideration:
Cash		$ 6,348,730
Recognized amounts of identifiable assets acquired and liabilities assumed:
Goodwill		$ 4,080,447	$ 1,249,956	$ 1,249,956
Antenna Plus
Consideration:
Cash	$ 6,383,500
Working capital adjustments	(34,770)
Fair value of total consideration transferred	6,348,730
Recognized amounts of identifiable assets acquired and liabilities assumed:
Accounts receivable	584,390
Inventory	432,770
Fixed assets	402,958
Intangible assets	2,220,000
Current liabilities	(121,879)
Total identifiable net assets acquired	3,518,239
Goodwill	2,830,491
Total	$ 6,348,730

Acquisitions - Summary of Unaud

Acquisitions - Summary of Unaudited Pro Forma Information (Details) - Antenna Plus - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Business Acquisition [Line Items]
Pro forma sales	$ 12,448,436	$ 14,651,565	$ 38,982,040	$ 36,914,879
Pro forma income from operations	200,632	1,869,316	1,047,435	3,865,061
Pro forma net income	$ 234,353	$ 1,822,045	$ 1,097,806	$ 4,177,547

Goodwill - Schedule of Changes

Goodwill - Schedule of Changes In Goodwill (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Goodwill [Line Items]
Beginning balance	$ 1,249,956	$ 1,249,956
Current period adjustments		0
Ending balance	4,080,447	$ 1,249,956
Antenna Plus
Goodwill [Line Items]
Acquisition of Antenna Plus Assets	$ 2,830,491

Intangible Assets - Summary of

Intangible Assets - Summary of Acquired Intangible Assets (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	10 years	10 years
Gross Carrying Amount	$ 5,717,000	$ 3,497,000
Accumulated Amortization	783,569	387,363
Intangibles, Net	$ 4,933,431	$ 3,109,637
Developed technologies
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	9 years	5 years
Gross Carrying Amount	$ 1,080,000	$ 280,000
Accumulated Amortization	109,463	37,091
Intangibles, Net	$ 970,537	$ 242,909
Customer relationships
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	10 years	10 years
Gross Carrying Amount	$ 4,450,000	$ 3,150,000
Accumulated Amortization	617,499	327,082
Intangibles, Net	$ 3,832,501	$ 2,822,918
Non-compete agreement
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	3 years	3 years
Gross Carrying Amount	$ 67,000	$ 67,000
Accumulated Amortization	39,940	23,190
Intangibles, Net	$ 27,060	$ 43,810
Tradename
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	3 years
Gross Carrying Amount	$ 120,000
Accumulated Amortization	16,667
Intangibles, Net	$ 103,333

Intangible Assets - Additional

Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization	$ 74,402	$ 93,338	$ 396,206	$ 276,004

Intangible Assets - Schedule of

Intangible Assets - Schedule of Estimated Annual Amortization of Intangible Assets (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
2017 (remaining three months)	$ 159,846
2,018	638,529
2,019	617,052
2,020	589,667
2,021	560,420
Thereafter	2,367,917
Intangibles, Net	$ 4,933,431	$ 3,109,637

Long-term Notes Payable (incl51

Long-term Notes Payable (including current portion) and Line of Credit - Additional Information (Details)	Feb. 01, 2017USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2013USD ($)Installment	Sep. 30, 2017USD ($)	Sep. 30, 2017USD ($)	Dec. 31, 2016USD ($)
Loan Agreement With Silicon Valley Bank
Line Of Credit Facility [Line Items]
Liquidity ratio				125.00%
Loan agreement amount		$ 4,000,000
Term of payments		36 months
Date of maturity		Dec. 1, 2018
Minimum EBITDA					$ 750,000
Interest rate fixed percentage		5.00%
Long-term debt				$ 1,666,666	1,666,666	$ 2,666,666
Loan Agreement With Silicon Valley Bank \| Maximum
Line Of Credit Facility [Line Items]
Unrestricted Cash Required For Line Of Credit Covenant				25,000,000	25,000,000
Silicon Valley Bank \| Revolving Credit Facility
Line Of Credit Facility [Line Items]
Line of credit facility allowable amount				3,000,000	$ 3,000,000
Facility interest rate					4.25%
Liquidity ratio					125.00%
Line of credit facility maturity date					2018-04
Line of credit				0	$ 0	0
Silicon Valley Bank \| Revolving Credit Facility \| U.S. Prime Rate
Line Of Credit Facility [Line Items]
Basis spread on variable interest rate					1.25%
Silicon Valley Bank \| Revolving Credit Facility \| Growth Capital Term Loan
Line Of Credit Facility [Line Items]
Line of credit facility allowable amount			$ 750,000
Line of credit				$ 0	$ 0	$ 55,230
Line of credit facility, payment terms					The growth capital term loan required interest only payments through June 30, 2014 at which point it was to be repaid in 32 equal monthly installments of interest and principal.
Number of monthly installments for principal and interest payment \| Installment			32
Line of credit facility maturity date					Feb. 1, 2017
Payment of principal and accrued interest	$ 55,230
Line of credit facility interest rate			6.50%

Long-term Notes Payable (incl52

Long-term Notes Payable (including current portion) and Line of Credit - Schedule of Remaining Principal Payment (Details) - Loan Agreement With Silicon Valley Bank - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Line Of Credit Facility [Line Items]
2,017	$ 333,333
2,018	1,333,333
Long-term debt	$ 1,666,666	$ 2,666,666

Treasury Stock - Additional Inf

Treasury Stock - Additional Information (Details) - Common Stock - Share Repurchase Program August 2017 - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended
	Aug. 31, 2017	Sep. 30, 2017	Sep. 30, 2017
Equity Class Of Treasury Stock [Line Items]
Stock repurchase, shares		52,200	52,200
Stock repurachse, average price per share		$ 8.98	$ 8.98
Stock repurchase, cost		$ 468,823	$ 468,823
Board of Directors
Equity Class Of Treasury Stock [Line Items]
Stock approved for repurchase, value	$ 7,000,000
Period of stock repurcahse program	12 months

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details)	3 Months Ended	9 Months Ended
Income Taxes - Additional Information (Details)	Sep. 30, 2017	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Effective income tax rate	15.26%	9.74%
U.S. federal statutory tax rate	34.00%	34.00%

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Details) - shares	Sep. 30, 2017	[1]	Dec. 31, 2016
Class Of Stock [Line Items]
Common stock, reserved for future issuance	1,626,693		1,901,140
Warrants Issued and Outstanding
Class Of Stock [Line Items]
Common stock, reserved for future issuance	51,003		51,003
Stock Option Awards Issued and Outstanding
Class Of Stock [Line Items]
Common stock, reserved for future issuance	1,222,089		1,040,387
Authorized for grants under the 2016 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Common stock, reserved for future issuance	100,000		100,000
Authorized for Grants under the 2016 Equity Incentive Plan
Class Of Stock [Line Items]
Common stock, reserved for future issuance	253,601		709,750

[1]	Treasury stock in the amount of 52,200 are excluded from the table above.

Stockholders' Equity - Schedu56

Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Parenthetical) (Details) - shares	Sep. 30, 2017	Dec. 31, 2016
Equity [Abstract]
Treasury stock, shares at cost	52,200	0

Stock Options - Summary of Outs

Stock Options - Summary of Outstanding Stock Option Activity (Details) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of shares, Beginning balance	1,040,387
Number of shares, Granted	456,144
Number of shares, Exercised	(244,993)
Number of shared, Expired/Forfeited	(29,449)
Number of shares, Ending balance	1,222,089	1,040,387
Number of shares, Vested and exercisable	518,126
Number of shares, Vested and expected to vest	1,222,089
Weighted average exercise price	$ 2.25
Weighted average exercise price, Granted	14.89
Weighted average exercise price, Exercised	2.07
Weighted average exercise price, Expired/Forfeited	6.99
Weighted average exercise price	6.89	$ 2.25
Weighted average exercise price, Vested and exercisable	2.07
Weighted average exercise price, Vested and expected to vest	$ 6.89
Weighted average remaining contractual term	8 years 3 months	7 years 9 months 18 days
Weighted average remaining contractual term, Granted	9 years 4 months 13 days
Weighted average remaining contractual term, Exercised	5 years 7 months 10 days
Weighted average remaining contractual term, Expired/Forfeited	18 days
Weighted average remaining contractual term, Vested and exercisable	7 years 11 days
Weighted average remaining contractual term, Vested and expected to vest	8 years 3 months

Stock Options - Additional Info

Stock Options - Additional Information (Details) - USD ($)	9 Months Ended		12 Months Ended
Stock Options - Additional Information (Details) - USD ($)	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant-date fair value of options granted	$ 6.06		$ 1.23
Stock options vested aggregate intrinsic value	$ 3,651,672		$ 7,770,086
Stock options expected to vest aggregate intrinsic value	1,722,060		4,569,243
Stock-based compensation	463,856	$ 224,039
Total unrecognized compensation cost related to unvested stock options and restricted stock granted under the plans	$ 2,640,992		$ 522,818
Unrecognized compensation cost related to unvested stock options and restricted stock granted under the plans, period for recognition	3 years
Restricted Stock \| Chief Financial Officer And Chief Operating Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted common stock granted			57,475
Fair value of common stock granted, per share			$ 2
Vested percentage of common stock			100.00%
Vested period of restricted common stock			6 months
Shares vested month and year	2017-02
Stock-based compensation	$ 53,056		$ 61,894

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - Office Space and Research Facilities Lease - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Commitment And Contingencies [Line Items]
Operating leases, rent expense	$ 223,866	$ 185,654	$ 615,176	$ 554,804
Lease agreement description			The San Diego facility lease agreement included a tenant improvement allowance which provided for the landlord to pay for tenant improvements on behalf of the Company up to $515,000. Based on the terms of this landlord incentive and involvement of the Company in the construction process, the leasehold improvements purchased under the landlord incentive were determined to be property of the Company.
Lease expiration date			Jun. 30, 2020
Maximum
Commitment And Contingencies [Line Items]
Payments for tenant improvements allowance			$ 515,000

Commitments and Contingencies60

Commitments and Contingencies - Schedule Future Minimum Lease Payments Under Operating Leases (Detail)	Sep. 30, 2017USD ($)
Future minimum lease payment
2017 (remaining three months)	$ 216,714
2,018	770,606
2,019	555,660
2,020	265,940
Total future minimum lease payment	$ 1,808,920

Concentration of Credit Risk -

Concentration of Credit Risk - Schedule of Concentration of Sales and Accounts Receivable (Details) - Customer Concentration Risk	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Revenue \| Customer A
Concentration Risk [Line Items]
Concentration risk percentage	24.00%	20.00%	22.00%	18.00%
Net Revenue \| Customer B
Concentration Risk [Line Items]
Concentration risk percentage	14.00%	30.00%	14.00%	31.00%
Net Revenue \| Customer C
Concentration Risk [Line Items]
Concentration risk percentage	11.00%	8.00%	11.00%	7.00%
Trade Accounts Receivable \| Customer A
Concentration Risk [Line Items]
Concentration risk percentage			22.00%	12.00%
Trade Accounts Receivable \| Customer B
Concentration Risk [Line Items]
Concentration risk percentage			16.00%	12.00%
Trade Accounts Receivable \| Customer C
Concentration Risk [Line Items]
Concentration risk percentage			10.00%	1.00%
Trade Accounts Receivable \| Customer D
Concentration Risk [Line Items]
Concentration risk percentage			9.00%	24.00%

Concentration of Credit Risk 62

Concentration of Credit Risk - Schedule of Revenue by Geography (Details) - Customer Concentration Risk - Net Revenue	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
China
Concentration Risk [Line Items]
Concentration risk percentage	71.00%	69.00%	71.00%	72.00%
Other Asia
Concentration Risk [Line Items]
Concentration risk percentage	4.00%	14.00%	10.00%	12.00%
North America
Concentration Risk [Line Items]
Concentration risk percentage	19.00%	12.00%	13.00%	11.00%
Europe
Concentration Risk [Line Items]
Concentration risk percentage	6.00%	5.00%	6.00%	5.00%

Concentration of Credit Risk 63

Concentration of Credit Risk - Additional Information (Details) - Vendor	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
China
Concentration Risk [Line Items]
Number of vendors	2	2	2	2