Geospace Technologies (GEOS) 10-Q 9 Aug 19 2019 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Jun. 30, 2019	Jul. 31, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Trading Symbol	GEOS
Entity Registrant Name	GEOSPACE TECHNOLOGIES CORP
Entity Central Index Key	0001001115
Current Fiscal Year End Date	--09-30
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		13,631,041
Entity Current Reporting Status	Yes
Entity File Number	001-13601
Entity Tax Identification Number	760447780
Entity Address, Address Line One	7007 Pinemont
Entity Address, City or Town	Houston
Entity Address, State or Province	Texas
Entity Address, Postal Zip Code	77040
City Area Code	(713)
Local Phone Number	986-4444

CONSOLIDATED BALANCE SHEETS (Un

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)	Jun. 30, 2019	Sep. 30, 2018
Current assets:
Cash and cash equivalents	$ 15,598,000	$ 11,934,000
Short-term investments	0	25,471,000
Trade accounts receivable, net	14,739,000	14,323,000
Financing receivables	3,584,000	4,258,000
Inventories	17,003,000	18,812,000
Property held for sale	1,329,000
Prepaid expenses and other current assets	1,117,000	1,856,000
Total current assets	53,370,000	76,654,000
Non-current financing receivables, net	1,708,000	4,740,000
Non-current inventories	32,265,000	31,655,000
Rental equipment, net	60,155,000	39,545,000
Property, plant and equipment, net	32,196,000	33,624,000
Goodwill	5,007,000	4,343,000
Other intangible assets, net	10,497,000	8,006,000
Deferred income tax assets, net	237,000	246,000
Prepaid income taxes	72,000	54,000
Other assets	212,000	213,000
Total assets	195,719,000	199,080,000
Current liabilities:
Accounts payable trade	4,700,000	4,106,000
Accrued expenses and other current liabilities	4,923,000	6,826,000
Deferred revenue	3,941,000	3,752,000
Income tax payable	36,000	51,000
Total current liabilities	13,600,000	14,735,000
Contingent earn-out liabilities	12,055,000	7,713,000
Deferred income tax liabilities	40,000	45,000
Total liabilities	25,695,000	22,493,000
Commitments and contingencies (Note 13)
Stockholders’ equity:
Preferred stock, 1,000,000 shares authorized, no shares issued and outstanding
Common stock, $.01 par value, 20,000,000 shares authorized, 13,632,041 and 13,600,541 shares issued and outstanding	136,000	136,000
Additional paid-in capital	88,112,000	86,116,000
Retained earnings	97,136,000	105,954,000
Accumulated other comprehensive loss	(15,360,000)	(15,619,000)
Total stockholders’ equity	170,024,000	176,587,000
Total liabilities and stockholders’ equity	$ 195,719,000	$ 199,080,000

CONSOLIDATED BALANCE SHEETS (_2

CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2019	Sep. 30, 2018
Statement Of Financial Position [Abstract]
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	13,632,041	13,600,541
Common stock, shares outstanding	13,632,041	13,600,541

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue:
Products	$ 12,153	$ 13,270	$ 34,457	$ 40,454
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Rental	$ 10,720	$ 8,000	$ 32,414	$ 14,707
Total revenue	22,873	21,270	66,871	55,161
Cost of revenue:
Products	$ 10,508	$ 12,956	$ 32,967	$ 40,117
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Rental	$ 4,775	$ 3,637	$ 12,873	$ 9,336
Total cost of revenue	15,283	16,593	45,840	49,453
Gross profit	7,590	4,677	21,031	5,708
Operating expenses:
Selling, general and administrative	6,050	4,551	17,493	14,465
Research and development	4,246	2,537	11,315	8,125
Bad debt expense	629	2,725	599	3,081
Total operating expenses	10,925	9,813	29,407	25,671
Loss from operations	(3,335)	(5,136)	(8,376)	(19,963)
Other income (expense):
Interest expense	(28)	(94)	(85)	(285)
Interest income	446	257	898	799
Foreign exchange gains (losses), net	(1)	264	185	(85)
Other, net	(54)	(34)	(183)	(88)
Total other income, net	363	393	815	341
Loss before income taxes	(2,972)	(4,743)	(7,561)	(19,622)
Income tax expense (benefit)	700	53	1,257	(617)
Net loss	$ (3,672)	$ (4,796)	$ (8,818)	$ (19,005)
Loss per common share:
Basic	$ (0.27)	$ (0.36)	$ (0.66)	$ (1.43)
Diluted	$ (0.27)	$ (0.36)	$ (0.66)	$ (1.43)
Weighted average common shares outstanding:
Basic	13,405,504	13,266,316	13,381,789	13,244,242
Diluted	13,405,504	13,266,316	13,381,789	13,244,242

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (3,672)	$ (4,796)	$ (8,818)	$ (19,005)
Other comprehensive income (loss):
Change in unrealized gains (losses) on available-for-sale securities, net of tax	(1)	36	82	(53)
Foreign currency translation adjustments	157	(1,198)	177	(364)
Total other comprehensive income (loss)	156	(1,162)	259	(417)
Total comprehensive loss	$ (3,516)	$ (5,958)	$ (8,559)	$ (19,422)

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance at Sep. 30, 2017	$ 194,803	$ 134	$ 83,733	$ 125,166	$ (14,230)
Beginning Balance, Shares at Sep. 30, 2017		13,438,316
Net income (loss)	(9,480)			(9,480)
Other comprehensive income (loss)	259				259
Issuance of restricted stock		$ 2	(2)
Issuance of restricted stock, Shares		138,650
Forfeiture of restricted stock, Shares		(16,675)
Stock-based compensation	826		826
Ending Balance at Dec. 31, 2017	186,408	$ 136	84,557	115,686	(13,971)
Ending Balance, Shares at Dec. 31, 2017		13,560,291
Beginning Balance at Sep. 30, 2017	194,803	$ 134	83,733	125,166	(14,230)
Beginning Balance, Shares at Sep. 30, 2017		13,438,316
Net income (loss)	(19,005)
Other comprehensive income (loss)	(417)
Ending Balance at Jun. 30, 2018	177,758	$ 136	85,593	106,161	(14,132)
Ending Balance, Shares at Jun. 30, 2018		13,576,041
Beginning Balance at Dec. 31, 2017	186,408	$ 136	84,557	115,686	(13,971)
Beginning Balance, Shares at Dec. 31, 2017		13,560,291
Net income (loss)	(4,729)			(4,729)
Other comprehensive income (loss)	1,001				1,001
Issuance of restricted stock, Shares		16,800
Forfeiture of restricted stock, Shares		(1,375)
Issuance of common stock pursuant to the exercise of stock options	28		28
Issuance of common stock pursuant to the exercise of stock options, Shares		3,200
Stock-based compensation	518		518
Ending Balance at Mar. 31, 2018	183,226	$ 136	85,103	110,957	(12,970)
Ending Balance, Shares at Mar. 31, 2018		13,578,916
Net income (loss)	(4,796)			(4,796)
Other comprehensive income (loss)	(1,162)				(1,162)
Forfeiture of restricted stock, Shares		(2,875)
Stock-based compensation	490		490
Ending Balance at Jun. 30, 2018	177,758	$ 136	85,593	106,161	(14,132)
Ending Balance, Shares at Jun. 30, 2018		13,576,041
Beginning Balance at Sep. 30, 2018	$ 176,587	$ 136	86,116	105,954	(15,619)
Beginning Balance, Shares at Sep. 30, 2018	13,600,541	13,600,541
Net income (loss)	$ (5,853)			(5,853)
Other comprehensive income (loss)	(154)				(154)
Issuance of restricted stock, Shares		8,000
Forfeiture of restricted stock, Shares		(250)
Issuance of common stock pursuant to the exercise of stock options	215		215
Issuance of common stock pursuant to the exercise of stock options, Shares		24,500
Stock-based compensation	602		602
Ending Balance at Dec. 31, 2018	171,397	$ 136	86,933	100,101	(15,773)
Ending Balance, Shares at Dec. 31, 2018		13,632,791
Beginning Balance at Sep. 30, 2018	$ 176,587	$ 136	86,116	105,954	(15,619)
Beginning Balance, Shares at Sep. 30, 2018	13,600,541	13,600,541
Net income (loss)	$ (8,818)
Other comprehensive income (loss)	259
Ending Balance at Jun. 30, 2019	$ 170,024	$ 136	88,112	97,136	(15,360)
Ending Balance, Shares at Jun. 30, 2019	13,632,041	13,632,041
Beginning Balance at Dec. 31, 2018	$ 171,397	$ 136	86,933	100,101	(15,773)
Beginning Balance, Shares at Dec. 31, 2018		13,632,791
Net income (loss)	707			707
Other comprehensive income (loss)	257				257
Forfeiture of restricted stock, Shares		(1,000)
Issuance of common stock pursuant to the exercise of stock options, Shares		500
Stock-based compensation	592		592
Ending Balance at Mar. 31, 2019	172,953	$ 136	87,525	100,808	(15,516)
Ending Balance, Shares at Mar. 31, 2019		13,632,291
Net income (loss)	(3,672)			(3,672)
Other comprehensive income (loss)	156				156
Forfeiture of restricted stock, Shares		(250)
Stock-based compensation	587		587
Ending Balance at Jun. 30, 2019	$ 170,024	$ 136	$ 88,112	$ 97,136	$ (15,360)
Ending Balance, Shares at Jun. 30, 2019	13,632,041	13,632,041

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net loss	$ (8,818,000)	$ (19,005,000)
Adjustments to reconcile net loss to net provided by (cash used) in operating activities:
Deferred income tax benefit	(22,000)	(37,000)
Rental equipment depreciation	9,703,000	7,475,000
Property, plant and equipment depreciation	3,012,000	3,105,000
Impairment of long-lived assets		488,000
Amortization of intangible assets	1,228,000	0
Accretion of discounts on short-term investments	(9,000)	31,000
Stock-based compensation expense	1,781,000	1,833,000
Bad debt expense	599,000	3,081,000
Inventory obsolescence expense	3,013,000	4,001,000
Gross profit from sale of used rental equipment	(244,000)	(4,966,000)
Gain on disposal of property, plant and equipment	(90,000)	(25,000)
Realized loss on short-term investments	66,000	1,000
Effects of changes in operating assets and liabilities:
Trade accounts receivable	(82,000)	(3,932,000)
Income tax receivable		262,000
Inventories	(4,036,000)	(5,702,000)
Prepaid expenses and other current assets	162,000	(1,186,000)
Prepaid income taxes	9,000	41,000
Accounts payable trade	601,000	1,437,000
Accrued expenses and other	(927,000)	505,000
Deferred revenue	198,000	512,000
Income tax payable	(11,000)	8,000
Net cash provided by (used in) operating activities	6,133,000	(12,073,000)
Cash flows from investing activities:
Purchase of property, plant and equipment	(1,426,000)	(1,005,000)
Proceeds from the sale of property, plant and equipment	130,000	200,000
Investment in rental equipment	(28,728,000)	(2,511,000)
Proceeds from the sale of used rental equipment	3,388,000	4,333,000
Purchases of short-term investments		(11,162,000)
Proceeds from the sale of short-term investments	25,606,000	20,163,000
Business acquisition	(1,819,000)
Payments for damages related to insurance claim	(650,000)	(1,970,000)
Proceeds from insurance claim	1,166,000	900,000
Increase in insurance claim receivable		849,000
Net cash used in (provided by) investing activities	(2,333,000)	9,797,000
Cash flows from financing activities:
Proceeds from the exercise of stock options	215,000	19,000
Net cash provided by financing activities	215,000	19,000
Effect of exchange rate changes on cash	(351,000)	(285,000)
Increase (decrease) in cash and cash equivalents	3,664,000	(2,542,000)
Cash and cash equivalents, beginning of fiscal year	11,934,000	15,092,000
Cash and cash equivalents, end of fiscal period	15,598,000	12,550,000
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest	85,000	285,000
Net cash paid (refunded) for income taxes	$ 1,249,000	$ (649,000)

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	1. Significant Accounting Policies Basis of Presentation The consolidated balance sheet of Geospace Technologies Corporation and its subsidiaries (the “Company”) at September 30, 2018 was derived from the Company’s audited consolidated financial statements at that date. The consolidated balance sheet at June 30, 2019 and the consolidated statements of operations, comprehensive loss, stockholders’ equity and cash flows for the three and nine months ended June 30, 2019 and 2018 were prepared by the Company without audit. In the opinion of management, all adjustments, consisting of normal recurring adjustments, necessary to present fairly the consolidated financial position, results of operations and cash flows were made. The results of operations for the three and nine months ended June 30, 2019 are not necessarily indicative of the operating results for a full year or of future operations. Certain information and footnote disclosures normally included in financial statements presented in accordance with accounting principles generally accepted in the United States of America were omitted pursuant to the rules of the Securities and Exchange Commission. The accompanying consolidated financial statements should be read in conjunction with the financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the Company’s fiscal year ended September 30, 2018. Reclassifications Certain amounts previously presented in the consolidated financial statements have been reclassified to conform to the current year presentation. Such reclassifications had no effect on previously reported net loss, stockholders’ equity or cash flows. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the use of estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. The Company considers many factors in selecting appropriate operational and financial accounting policies and controls, and in developing the estimates and assumptions that are used in the preparation of these consolidated financial statements. The Company continually evaluates its estimates, including those related to bad debt reserves, inventory obsolescence reserves, self-insurance reserves, product warranty reserves, impairment of long-lived assets and deferred income tax assets. The Company bases its estimates on historical experience and various other factors that are believed to be reasonable under the circumstances. Actual results may differ from these estimates under different conditions or assumptions. Cash and Cash Equivalents The Company considers all highly liquid investments purchased with an original or remaining maturity at the time of purchase of three months or less to be cash equivalents. At June 30, 2019, cash and cash equivalents included $7.5 million held by the Company’s foreign subsidiaries and branch offices. If the Company were to repatriate the cash held by its foreign subsidiaries, it would be required to accrue and pay taxes on any amount repatriated under rates enacted by The Tax Cuts and Jobs Act (“2017 Tax Act”). Recently Adopted Accounting Pronouncements In November 2016, the Financial Accounting Standards Board (“FASB”) issued guidance which requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This guidance was adopted by the Company in its first quarter of fiscal year 2019. The adoption of this guidance had no effect on the Company’s consolidated financial statements since it currently holds no restricted cash balances. In May 2014, the FASB issued guidance requiring entities to recognize revenue from contracts with customers by applying a five-step model in accordance with the core principle to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, this guidance specifies the accounting for some costs to obtain or fulfill a contract with a customer and expands disclosure requirements for revenue recognition. This new standard supersedes existing revenue recognition guidance and requires changes to the revenue recognition process, financial statement presentation and footnote disclosures. The Company adopted this standard on October 1, 2018 using the modified retrospective method. The adoption of this standard did not result in a cumulative adjustment as of October 1, 2018 nor did it have any impact on the Company’s consolidated financial statements. Recently Issued Accounting Pronouncements In June 2018, the FASB issued guidance expanding the scope of ASC Topic 718, Compensation - Stock Compensation In August 2018, the FASB issued guidance requiring certain existing disclosure requirements in ASC Topic 820, Fair Value Measurements and Disclosures In January 2017, the FASB issued guidance simplifying the current two-step goodwill impairment test by eliminating Step 2 of the test. The guidance requires a one-step impairment test in which an entity compares the fair value of a reporting unit with its carrying amount and recognizes an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, if any. This guidance is effective for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years, and should be applied on a prospective basis. Early adoption is permitted for the interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of this guidance to have an impact on its consolidated financial statements and disclosures. In June 2016, the FASB issued guidance surrounding credit losses for financial instruments that replaces the incurred loss impairment methodology in generally accepted accounting principles (“GAAP”). The new impairment model requires immediate recognition of estimated credit losses expected to occur for most financial assets and certain other financial instruments. For available-for-sale debt securities with unrealized losses, credit losses will be recognized as allowances rather than reductions in the amortized cost of the securities. The standard is effective for fiscal years reporting periods beginning after December 15, 2019 and interim periods within those fiscal years. Early adoption for a fiscal year beginning after December 15, 2018 is permitted. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first effective reporting period. The Company expects to adopt this standard during the first quarter of its fiscal year ending September 30, 2021 and is currently evaluating the impact of this new guidance on its consolidated financial statements. In February 2016, the FASB issued guidance requiring a lessee to recognize assets and liabilities for leases with lease terms of more than 12 months. Consistent with current GAAP, the recognition, measurement and presentation of expense and cash flows arising from a lease by a lessee primarily will depend on its classification of the lease as a finance or operating lease. However, unlike current GAAP, which requires only capital leases to be recognized on the balance sheet, the new guidance will also require operating leases of the lessee to be recognized on the balance sheet if the operating lease term is more than 12 months. The guidance also requires disclosures to help investors and other financial statement users to better understand the amount, timing and uncertainty of cash flows arising from leases. These disclosures include qualitative and quantitative requirements, providing additional information about the amounts recorded in the financial statements. The guidance is effective for fiscal years, and interim reporting periods therein, beginning after December 15, 2018 and is to be applied using the modified retrospective approach. The Company will adopt this guidance in its first quarter of its fiscal year ending September 30, 2020. Effective May 1, 2019, the Company became a lessee under an office lease agreement with a term longer than one year and will follow the guidance of the new standard regarding this lease contract. In addition, the Company is routinely a lessor in its rental contracts with customers. The minimum rental term of these rental contracts is generally less than one year, and the Company expects these contracts will be treated as operating leases under the new guidance. The Company does not expect the adoption of this guidance to have a material impact on its consolidated financial statements.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Jun. 30, 2019
Revenue From Contract With Customer [Abstract]
Revenue Recognition	2. Revenue Recognition On October 1, 2018, the Company adopted ASC Topic 606, Revenue from Contracts with Customers. Under the new standard, the Company recognizes revenue when performance of contractual obligations are satisfied, generally when control of the promised goods or services is transferred to its customers, in an amount that reflects the consideration it expects to be entitled to in exchange for those goods or services. The Company primarily derives product revenue from the sale of its manufactured products. Revenue from these product sales, including the sale of used rental equipment, is recognized when obligations under the terms of a contract are satisfied, control is transferred and collectability of the sales price is reasonably assured. Transfer of control generally occurs with shipment or delivery, depending on the terms of the underlying contract. The Company’s products are generally sold without any customer acceptance provisions, and the Company’s standard terms of sale do not allow customers to return products for credit. Revenue from engineering services is recognized as services are rendered over the duration of a project, or as billed on a per hour basis. Field service revenue is recognized when services are rendered and is generally priced on a per day rate. The Company also generates revenue from short-term rentals under operating leases of its manufactured products. Rental revenue is recognized as earned over the rental period. Rentals of the Company’s equipment generally range from daily rentals to minimum rental periods of up to six months or longer. The Company has determined that the new standard does not apply to rental contracts, which are within the scope of other revenue recognition accounting standards. The cumulative effect of the changes made to the Company’s consolidated balance sheet as of October 1, 2018 resulting from the adoption of the new standard was not material and did not impact beginning retained earnings. The impact on the timing of sales and services for the nine months ended June 30, 2019 resulting from the application of the new standard was not material. As permissible under the new standard, sales taxes and transaction-based taxes are excluded from revenue. The Company does not disclose the value of unsatisfied performance obligations for contracts with an original expected duration of one year or less. Additionally, the Company expenses costs incurred to obtain contracts when incurred because the amortization period would have been one year or less. These costs are recorded in selling, general and administrative expenses. At June 30, 2019 and September 30, 2018 the Company had deferred contract liabilities of $0.1 million and $0.2 million, respectively, included as a component of deferred revenue. The Company had deferred contract costs of zero and $27,000 at June 30, 2019 and September 30, 2018, respectively, included as a component of prepaid expenses and other current assets. During the three and nine months ended June 30, 2019, the Company recognized revenue of $42,000 and $0.1 million, respectively, from deferred contract liabilities and cost of revenue of $35,000 and $27,000, respectively, from deferred contract costs. For each of the Company’s operating segments, the following table presents revenue only from the sale of products and the performance of services under contracts with customers. The table excludes all revenue earned from rental contracts (in thousands): Three Months Ended Nine Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Oil and Gas Markets Traditional exploration product revenue $ 2,129 $ 2,424 $ 8,116 $ 8,513 Wireless exploration product revenue 1,381 273 1,835 4,454 Reservoir product revenue 421 1,819 2,303 4,497 Total revenue 3,931 4,516 12,254 17,464 Adjacent Markets Industrial product revenue 5,364 5,674 13,046 14,061 Imaging product revenue 2,847 3,080 9,012 8,929 Total revenue 8,211 8,754 22,058 22,990 Emerging Markets Revenue 11 — 145 — Total $ 12,153 $ 13,270 $ 34,457 $ 40,454 See note 14 for more information on the Company’s operating segments. For each of the geographic areas where the Company operates, the following table presents revenue (in thousands) from the sale of products and services under contracts with customers. The table excludes all revenue earned from rental contracts: Three Months Ended Nine Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Asia $ 1,094 $ 1,207 $ 4,162 $ 3,466 Canada 1,202 699 1,832 1,409 Europe 1,023 1,496 3,108 5,832 United States 7,521 9,305 22,396 28,666 Other 1,313 563 2,959 1,081 Total $ 12,153 $ 13,270 $ 34,457 $ 40,454 Revenue is attributable to countries based on the ultimate destination of the product sold, if known. If the ultimate destination is not known, revenue is attributable to countries based on the geographic location of the initial shipment.

Business Acquisition

Business Acquisition	9 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Business Acquisition	3. Business Acquisition On November 13, 2018, the Company acquired all of the intellectual property and related assets of the OptoSeis ® ® In connection with the OptoSeis ® Legal costs of $0.2 million related to the OptoSeis ® ® ®

Short-term Investments

Short-term Investments	9 Months Ended
	Jun. 30, 2019
Investments Debt And Equity Securities [Abstract]
Short-term Investments	4. Short-term Investments The Company classifies its short-term investments as available-for-sale securities. Available-for sale securities are carried at fair market value with net unrealized holding gains and losses reported as a component of accumulated other comprehensive loss in stockholders’ equity. During the three and nine months ended June 30, 2019, the Company realized gains (losses) of $1,000 and $(66,000), respectively, from the sale of short-term investments. During the three and nine months ended June 30, 2018, the Company realized losses of zero and $1,000, respectively, from the sale of short-term investments. Realized gains and losses are recorded in Other Income (Expense) on the consolidated statements of operations. The Company’s short-term investments were composed of the following (in thousands): As of September 30, 2018 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Estimated Fair Value Short-term investments: Corporate bonds $ 17,851 $ — $ (60 ) $ 17,791 Government bonds 7,702 — (22 ) 7,680 Total $ 25,553 $ — $ (82 ) $ 25,471 The Company had no short-term investments at June 30, 2019

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Jun. 30, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	5. Derivative Financial Instruments At June 30, 2019 and September 30, 2018, the Company’s Canadian subsidiary had CAD $8.9 million and CAD $20.4 million, respectively, of Canadian dollar denominated intercompany accounts payable owed to one of the Company’s U.S. subsidiaries. In order to mitigate its exposure to movements in foreign currency rates between the U.S. dollar and Canadian dollar, the Company routinely enters into foreign currency forward contracts to hedge a portion of its exposure to changes in the value of the Canadian dollar. On June 28, 2019, the Company entered into a CAD $7.0 million 90-day hedge contract with a United States bank to reduce the impact on cash flows from movements in the Canadian dollar/U.S. dollar currency exchange rate, but the contract has not been designated as a hedge for accounting purposes. The following table summarizes the gross fair value of all derivative instruments, which are not designated as hedging instruments and their location in the consolidated balance sheets (in thousands). Derivative Instrument Location June 30, 2019 September 30, 2018 Foreign Currency Forward Contracts Accrued Expenses and Other Current Liabilities $ 7 $ 270 The following table summarizes the Company’s realized gains (losses) on derivative instruments included in the consolidated statements of operations for the three and nine months ended June 30, 2019 and 2018 (in thousands): Three Months Ended Nine Months Ended Derivative Instrument Location June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Foreign Currency Forward Contracts Other Income (Expense) $ (142 ) $ 601 $ 497 $ 1,176

Trade Accounts and Financing Re

Trade Accounts and Financing Receivables	9 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Trade Accounts and Financing Receivables	6. Trade Accounts and Financing Receivables Trade accounts receivable, net are reflected in the following table (in thousands): June 30, 2019 September 30, 2018 Trade accounts receivable $ 15,789 $ 15,776 Allowance for doubtful accounts (1,050 ) (1,453 ) $ 14,739 $ 14,323 The allowance for doubtful accounts represents the Company’s best estimate of probable credit losses. The Company determines the allowance based upon historical experience and a current review of its accounts receivable balances. Accounts receivable balances are charged off against the allowance whenever it is probable that the receivable balance will not be recoverable. Trade accounts receivable at June 30, 2019 includes $5.4 million due from a single customer, of which $1.1 million was collected in July 2019. Revenue from this customer for the nine months ended June 30, 2019 was $14.6 million, more than 10% of the Company’s revenue. Financing receivables are reflected in the following table (in thousands): June 30, 2019 September 30, 2018 Promissory notes $ 4,426 $ 5,646 Sales-type lease 3,405 5,533 Total financing receivables 7,831 11,179 Unearned income: Promissory notes (95 ) (95 ) Sales-type lease (90 ) (237 ) Total unearned income (185 ) (332 ) Total financing receivables, net of unearned income 7,646 10,847 Allowance for doubtful promissory notes (2,354 ) (1,849 ) Less current portion (3,584 ) (4,258 ) Non-current financing receivables $ 1,708 $ 4,740

Inventories

Inventories	9 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	7. Inventories Inventories consist of the following (in thousands): June 30, 2019 September 30, 2018 Finished goods $ 19,713 $ 18,802 Work in process 5,321 7,926 Raw material 55,933 54,290 Obsolescence reserve (31,699 ) (30,551 ) 49,268 50,467 Less current portion (17,003 ) (18,812 ) Non-current portion $ 32,265 $ 31,655 During the nine months ended June 30, 2019 and 2018, the Company made non-cash inventory transfers of $1.8 million and $23.5 million, respectively, to rental equipment. Raw materials include semi-finished goods and component parts totaled approximately $27.1 million and $29.0 million at June 30, 2019 and September 30, 2018, respectively.

Property Held for Sale

Property Held for Sale	9 Months Ended
	Jun. 30, 2019
Discontinued Operations And Disposal Groups [Abstract]
Property Held for Sale	8. Property Held for Sale On August 1, 2019, the Company sold its real property located at 7334-7340 Gessner Road, Houston, Texas for a cash price of $8.6 million. The carrying value of the property of $1.4 million has been reclassified from property, plant and equipment to property held for sale in the accompanying consolidated balance sheet as of June 30, 2019. The property was unencumbered.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Jun. 30, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	9. Goodwill and Other Intangible Assets In connection with the acquisition of all the intellectual property and related assets of the OptoSeis ® Weighted- Average Remaining Useful Lives (in years) June 30, 2019 September 30, 2018 Goodwill $ 5,007 $ 4,343 Other intangible assets: Developed technology 17.4 5,919 4,200 Customer relationships 3.4 3,900 2,500 Trade names 4.5 1,930 1,400 Non-compete agreements 3.5 170 100 Total other intangible assets 10.5 11,919 8,200 Accumulated amortization (1,422 ) (194 ) $ 10,497 $ 8,006 Intangible assets amortization expense was $1.2 million for the nine months ended June 30, 2019. The Company had no intangible asset amortization expense for the nine months ended June 30, 2018. As of June 30, 2019, future estimated amortization expense of other intangible assets is as follows (in thousands): For fiscal years ending September 30, Three months ending September 30, 2019 $ 433 2020 1,732 2021 1,732 2022 1,624 2023 714 Thereafter 4,262 $ 10,497

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Jun. 30, 2019
Stockholders Equity Note [Abstract]
Accumulated Other Comprehensive Loss	10. Accumulated Other Comprehensive Loss Accumulated other comprehensive loss consisted of the following (in thousands): Unrealized Gain (Loss) on Available-for-Sale Securities Foreign Currency Translation Adjustments Totals Balance at October 1, 2018 $ (82 ) $ (15,537 ) $ (15,619 ) Changes in unrealized gain on available-for-sale securities, net of tax 82 — 82 Foreign currency translation adjustments — 177 177 Balance at June 30, 2019 $ — $ (15,360 ) $ (15,360 )

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Jun. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	11. Stock-Based Compensation During the nine months ended June 30, 2019, the Company issued 8,000 shares of restricted stock awards (“RSAs”) under its 2014 Long Term Incentive Plan, as amended (the “Plan”). The weighted average grant date fair value of each RSA was $14.59 per share. The total grant date fair value of all RSAs issued was $0.1 million, which will be charged to expense over the next four years as the RSA vesting restrictions lapse. Compensation expense for the RSAs was determined based on the closing market price of the Company’s stock on the date of grant applied to the total number of shares that are anticipated to fully vest. Recipients of RSAs are entitled to vote such shares and are entitled to any dividends paid. As of June 30, 2019, the Company had unrecognized compensation expense of $2.7 million relating to RSAs that is expected to be recognized over a weighted average period of 2.1 years. During the nine months ended June 30, 2019, the Company issued 161,800 restricted stock units (“RSUs”) under the Plan. The RSUs issued include both time-based and performance-based vesting provisions. The weighted average grant date fair value of each RSU was $15.11 per unit. The grant date fair value of the RSUs was $2.4 million, which will be charged to expense over the next four years as the restrictions lapse. Compensation expense for the RSUs was determined based on the closing market price of the Company’s stock on the date of grant applied to the total number of units that are anticipated to fully vest. Each RSU represents a contingent right to receive one share of the Company’s common stock upon vesting. As of June 30, 2019, the Company had unrecognized compensation expense of $2.1 million relating to RSUs that is expected to be recognized over a weighted average period of 3.4 years. As of June 30, 2019, the Company had $22,000 of unrecognized compensation expense related to nonqualified stock option awards that is expected to be recognized over a weighted average period of 0.4 year. As of June 30, 2019, there were 226,537 RSAs, 161,300 RSUs and 165,600 nonqualified stock options unvested and outstanding.

Loss Per Common Share

Loss Per Common Share	9 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Loss Per Common Share	12. Loss Per Common Share The Company applies the two-class method in calculating per share data. The following table summarizes the calculation of net loss and weighted average common shares and common equivalent shares outstanding for purposes of the computation of loss per share (in thousands, except share and per share data): Three Months Ended Nine Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Net loss $ (3,672 ) $ (4,796 ) $ (8,818 ) $ (19,005 ) Less: Loss allocable to unvested restricted stock (12 ) — — — Loss attributable to common shareholders for diluted earnings per share $ (3,684 ) $ (4,796 ) $ (8,818 ) $ (19,005 ) Weighted average number of common share equivalents: Common shares used in basic loss per share 13,405,504 13,266,316 13,381,789 13,244,242 Common share equivalents outstanding related to stock options and RSUs — — — — Total weighted average common shares and common share equivalents used in diluted loss per share 13,405,504 13,266,316 13,381,789 13,244,242 Loss per share: Basic $ (0.27 ) $ (0.36 ) $ (0.66 ) $ (1.43 ) Diluted $ (0.27 ) $ (0.36 ) $ (0.66 ) $ (1.43 ) For the calculation of diluted loss per share for the three and nine months ended June 30, 2019, 163,800 stock options and 161,300 non-vested RSUs were excluded in the calculation of weighted average shares outstanding since their impact on diluted loss per share was antidilutive. For the calculation of diluted loss per share for the three and nine months ended June 30, 2018, 194,600 stock options and zero non-vested RSUs were excluded in the calculation of weighted average shares outstanding since their impact on diluted loss per share was antidilutive.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Jun. 30, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	13. Commitments and Contingencies Contingent Earn-out Liabilities The Company established an initial earn-out liability of $7.7 million in connection with its July 2018 acquisition of Quantum. The contingent earn-out payments, if any, which at the Company’s option may be paid in the form of cash or Company stock, will be derived from eligible revenue that may be generated by Quantum during a four-year earn-out period. The maximum amount of contingent payments is $23.5 million over the earn-out period. For the recent acquisition of the intellectual property and related assets of the OptoSeis ® The Company reviews and accesses the fair value of its contingent earn-out liabilities on a quarterly basis. Management believes the fair value of its contingent earn-out liabilities has not materially changed since the original value established for each acquisition. Legal Proceedings The Company is involved in various pending legal actions in the ordinary course of its business. Management is unable to predict the ultimate outcome of these actions, because of the inherent uncertainty such actions. However, management believes that the most probable, ultimate resolution of these pending matters will not have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows.

Segment Information

Segment Information	9 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Information	14. Segment Information The Company reports and evaluates financial information for three operating segments: Oil and Gas Markets, Adjacent Markets and Emerging Markets. The Oil and Gas Markets segment products include wireless seismic data acquisition systems, reservoir characterization products and services, and traditional seismic exploration products such as geophones, hydrophones, leader wire, connectors, cables, marine streamer retrieval and steering devices and various other seismic products. The Adjacent Markets segment products include graphic imaging equipment, water meter products, offshore cables, and seismic sensors used for vibration monitoring and geotechnical applications such as mine safety applications and earthquake detection. The Emerging Markets segment was added in conjunction with the Company’s acquisition of Quantum, which designs and markets seismic products targeted at the border and perimeter security markets. The following table summarizes the Company’s segment information (in thousands): Three Months Ended Nine Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Revenue: Oil and Gas Markets $ 14,449 $ 12,345 $ 44,122 $ 31,671 Adjacent Markets 8,234 8,778 22,128 23,058 Emerging Markets 11 — 145 — Corporate 179 147 476 432 Total $ 22,873 $ 21,270 $ 66,871 $ 55,161 Income (loss) from operations: Oil and Gas Markets $ (280 ) $ (4,122 ) $ 451 $ (15,552 ) Adjacent Markets 1,717 1,428 4,350 3,841 Emerging Markets (1,388 ) — (3,760 ) — Corporate (3,384 ) (2,442 ) (9,417 ) (8,252 ) Total $ (3,335 ) $ (5,136 ) $ (8,376 ) $ (19,963 )

Income Taxes

Income Taxes	9 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	15. Income Taxes The 2017 Tax Act was enacted in December 2017. The 2017 Tax Act, among other things, reduces the U.S. federal corporate tax rate from 35% to 21%, effective January 1, 2018, creates new taxes on certain foreign earnings and may require companies to pay a one-time transition tax on undistributed earnings of certain foreign subsidiaries that were previously tax deferred. The Company is not required to pay a one-time transition tax on earnings of our foreign subsidiaries since the Company had accumulated foreign losses on a consolidated basis. As a result of the 2017 Tax Act, during the nine months ended June 30, 2018, the Company revalued its U.S. deferred tax assets based on the new U.S. federal tax rate of 21%, which resulted in a reduction to its deferred tax assets of approximately $8.1 million. The reduction in deferred tax assets was completely offset by a like reduction to the valuation allowance. Consolidated income tax expense for the three months ended June 30, 2019 was $0.7 million compared to $0.1 million for corresponding period of the prior fiscal year. Consolidated income tax expense for the nine months ended June 30, 2019 was $1.3 million compared to a tax benefit of $0.6 million for corresponding period of the prior fiscal year. The income tax expense for the both periods of fiscal year 2019 primarily reflects foreign withholding tax on rental income earned in Nigeria. The income tax benefit for the nine months ended June 30, 2018 reflects a $0.7 million tax refund resulting from the filing of an amended U.S. tax return in the three months ended March 31, 2018. The Company is currently unable to record any tax benefits for its tax losses in the U.S. and Canada due to the uncertainty surrounding its ability to utilize such losses in the future to offset taxable income.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The consolidated balance sheet of Geospace Technologies Corporation and its subsidiaries (the “Company”) at September 30, 2018 was derived from the Company’s audited consolidated financial statements at that date. The consolidated balance sheet at June 30, 2019 and the consolidated statements of operations, comprehensive loss, stockholders’ equity and cash flows for the three and nine months ended June 30, 2019 and 2018 were prepared by the Company without audit. In the opinion of management, all adjustments, consisting of normal recurring adjustments, necessary to present fairly the consolidated financial position, results of operations and cash flows were made. The results of operations for the three and nine months ended June 30, 2019 are not necessarily indicative of the operating results for a full year or of future operations. Certain information and footnote disclosures normally included in financial statements presented in accordance with accounting principles generally accepted in the United States of America were omitted pursuant to the rules of the Securities and Exchange Commission. The accompanying consolidated financial statements should be read in conjunction with the financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the Company’s fiscal year ended September 30, 2018.
Reclassifications	Reclassifications Certain amounts previously presented in the consolidated financial statements have been reclassified to conform to the current year presentation. Such reclassifications had no effect on previously reported net loss, stockholders’ equity or cash flows.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the use of estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. The Company considers many factors in selecting appropriate operational and financial accounting policies and controls, and in developing the estimates and assumptions that are used in the preparation of these consolidated financial statements. The Company continually evaluates its estimates, including those related to bad debt reserves, inventory obsolescence reserves, self-insurance reserves, product warranty reserves, impairment of long-lived assets and deferred income tax assets. The Company bases its estimates on historical experience and various other factors that are believed to be reasonable under the circumstances. Actual results may differ from these estimates under different conditions or assumptions.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers all highly liquid investments purchased with an original or remaining maturity at the time of purchase of three months or less to be cash equivalents. At June 30, 2019, cash and cash equivalents included $7.5 million held by the Company’s foreign subsidiaries and branch offices. If the Company were to repatriate the cash held by its foreign subsidiaries, it would be required to accrue and pay taxes on any amount repatriated under rates enacted by The Tax Cuts and Jobs Act (“2017 Tax Act”).
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In November 2016, the Financial Accounting Standards Board (“FASB”) issued guidance which requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This guidance was adopted by the Company in its first quarter of fiscal year 2019. The adoption of this guidance had no effect on the Company’s consolidated financial statements since it currently holds no restricted cash balances. In May 2014, the FASB issued guidance requiring entities to recognize revenue from contracts with customers by applying a five-step model in accordance with the core principle to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, this guidance specifies the accounting for some costs to obtain or fulfill a contract with a customer and expands disclosure requirements for revenue recognition. This new standard supersedes existing revenue recognition guidance and requires changes to the revenue recognition process, financial statement presentation and footnote disclosures. The Company adopted this standard on October 1, 2018 using the modified retrospective method. The adoption of this standard did not result in a cumulative adjustment as of October 1, 2018 nor did it have any impact on the Company’s consolidated financial statements.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In June 2018, the FASB issued guidance expanding the scope of ASC Topic 718, Compensation - Stock Compensation In August 2018, the FASB issued guidance requiring certain existing disclosure requirements in ASC Topic 820, Fair Value Measurements and Disclosures In January 2017, the FASB issued guidance simplifying the current two-step goodwill impairment test by eliminating Step 2 of the test. The guidance requires a one-step impairment test in which an entity compares the fair value of a reporting unit with its carrying amount and recognizes an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, if any. This guidance is effective for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years, and should be applied on a prospective basis. Early adoption is permitted for the interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of this guidance to have an impact on its consolidated financial statements and disclosures. In June 2016, the FASB issued guidance surrounding credit losses for financial instruments that replaces the incurred loss impairment methodology in generally accepted accounting principles (“GAAP”). The new impairment model requires immediate recognition of estimated credit losses expected to occur for most financial assets and certain other financial instruments. For available-for-sale debt securities with unrealized losses, credit losses will be recognized as allowances rather than reductions in the amortized cost of the securities. The standard is effective for fiscal years reporting periods beginning after December 15, 2019 and interim periods within those fiscal years. Early adoption for a fiscal year beginning after December 15, 2018 is permitted. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first effective reporting period. The Company expects to adopt this standard during the first quarter of its fiscal year ending September 30, 2021 and is currently evaluating the impact of this new guidance on its consolidated financial statements. In February 2016, the FASB issued guidance requiring a lessee to recognize assets and liabilities for leases with lease terms of more than 12 months. Consistent with current GAAP, the recognition, measurement and presentation of expense and cash flows arising from a lease by a lessee primarily will depend on its classification of the lease as a finance or operating lease. However, unlike current GAAP, which requires only capital leases to be recognized on the balance sheet, the new guidance will also require operating leases of the lessee to be recognized on the balance sheet if the operating lease term is more than 12 months. The guidance also requires disclosures to help investors and other financial statement users to better understand the amount, timing and uncertainty of cash flows arising from leases. These disclosures include qualitative and quantitative requirements, providing additional information about the amounts recorded in the financial statements. The guidance is effective for fiscal years, and interim reporting periods therein, beginning after December 15, 2018 and is to be applied using the modified retrospective approach. The Company will adopt this guidance in its first quarter of its fiscal year ending September 30, 2020. Effective May 1, 2019, the Company became a lessee under an office lease agreement with a term longer than one year and will follow the guidance of the new standard regarding this lease contract. In addition, the Company is routinely a lessor in its rental contracts with customers. The minimum rental term of these rental contracts is generally less than one year, and the Company expects these contracts will be treated as operating leases under the new guidance. The Company does not expect the adoption of this guidance to have a material impact on its consolidated financial statements.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Jun. 30, 2019
Revenue From Contract With Customer [Abstract]
Summary of Revenue from the Sale of Products and Performance of Services Under Contracts with Customers Excludes All Revenue Earned from Rental Contracts by Operating Segments	For each of the Company’s operating segments, the following table presents revenue only from the sale of products and the performance of services under contracts with customers. The table excludes all revenue earned from rental contracts (in thousands): Three Months Ended Nine Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Oil and Gas Markets Traditional exploration product revenue $ 2,129 $ 2,424 $ 8,116 $ 8,513 Wireless exploration product revenue 1,381 273 1,835 4,454 Reservoir product revenue 421 1,819 2,303 4,497 Total revenue 3,931 4,516 12,254 17,464 Adjacent Markets Industrial product revenue 5,364 5,674 13,046 14,061 Imaging product revenue 2,847 3,080 9,012 8,929 Total revenue 8,211 8,754 22,058 22,990 Emerging Markets Revenue 11 — 145 — Total $ 12,153 $ 13,270 $ 34,457 $ 40,454
Summary of Revenue from the Sale of Products and Services Under Contracts with Customers Excludes All Revenue Earned from Rental Contracts by Geographic Areas	For each of the geographic areas where the Company operates, the following table presents revenue (in thousands) from the sale of products and services under contracts with customers. The table excludes all revenue earned from rental contracts: Three Months Ended Nine Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Asia $ 1,094 $ 1,207 $ 4,162 $ 3,466 Canada 1,202 699 1,832 1,409 Europe 1,023 1,496 3,108 5,832 United States 7,521 9,305 22,396 28,666 Other 1,313 563 2,959 1,081 Total $ 12,153 $ 13,270 $ 34,457 $ 40,454

Short-term Investments (Tables)

Short-term Investments (Tables)	9 Months Ended
	Jun. 30, 2019
Investments Debt And Equity Securities [Abstract]
Short-term Investments	The Company’s short-term investments were composed of the following (in thousands): As of September 30, 2018 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Estimated Fair Value Short-term investments: Corporate bonds $ 17,851 $ — $ (60 ) $ 17,791 Government bonds 7,702 — (22 ) 7,680 Total $ 25,553 $ — $ (82 ) $ 25,471

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Jun. 30, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Gross Fair Value of all Derivative Instruments	The following table summarizes the gross fair value of all derivative instruments, which are not designated as hedging instruments and their location in the consolidated balance sheets (in thousands). Derivative Instrument Location June 30, 2019 September 30, 2018 Foreign Currency Forward Contracts Accrued Expenses and Other Current Liabilities $ 7 $ 270
Company's Derivatives on Consolidated Financial Statements of Operations	The following table summarizes the Company’s realized gains (losses) on derivative instruments included in the consolidated statements of operations for the three and nine months ended June 30, 2019 and 2018 (in thousands): Three Months Ended Nine Months Ended Derivative Instrument Location June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Foreign Currency Forward Contracts Other Income (Expense) $ (142 ) $ 601 $ 497 $ 1,176

Trade Accounts and Financing _2

Trade Accounts and Financing Receivables (Tables)	9 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Trade Accounts Receivable, Net	Trade accounts receivable, net are reflected in the following table (in thousands): June 30, 2019 September 30, 2018 Trade accounts receivable $ 15,789 $ 15,776 Allowance for doubtful accounts (1,050 ) (1,453 ) $ 14,739 $ 14,323
Financing Receivables	Financing receivables are reflected in the following table (in thousands): June 30, 2019 September 30, 2018 Promissory notes $ 4,426 $ 5,646 Sales-type lease 3,405 5,533 Total financing receivables 7,831 11,179 Unearned income: Promissory notes (95 ) (95 ) Sales-type lease (90 ) (237 ) Total unearned income (185 ) (332 ) Total financing receivables, net of unearned income 7,646 10,847 Allowance for doubtful promissory notes (2,354 ) (1,849 ) Less current portion (3,584 ) (4,258 ) Non-current financing receivables $ 1,708 $ 4,740

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	Inventories consist of the following (in thousands): June 30, 2019 September 30, 2018 Finished goods $ 19,713 $ 18,802 Work in process 5,321 7,926 Raw material 55,933 54,290 Obsolescence reserve (31,699 ) (30,551 ) 49,268 50,467 Less current portion (17,003 ) (18,812 ) Non-current portion $ 32,265 $ 31,655

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Jun. 30, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Goodwill and Other Intangible Assets	As a result of this acquisition and the acquisition of Quantum Technologies Sciences, Inc. (“Quantum”) in July 2018, the Company’s consolidated intangible assets consisted of the following (in thousands): Weighted- Average Remaining Useful Lives (in years) June 30, 2019 September 30, 2018 Goodwill $ 5,007 $ 4,343 Other intangible assets: Developed technology 17.4 5,919 4,200 Customer relationships 3.4 3,900 2,500 Trade names 4.5 1,930 1,400 Non-compete agreements 3.5 170 100 Total other intangible assets 10.5 11,919 8,200 Accumulated amortization (1,422 ) (194 ) $ 10,497 $ 8,006
Future Estimated Amortization Expense of Other intangible Assets	As of June 30, 2019, future estimated amortization expense of other intangible assets is as follows (in thousands): For fiscal years ending September 30, Three months ending September 30, 2019 $ 433 2020 1,732 2021 1,732 2022 1,624 2023 714 Thereafter 4,262 $ 10,497

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Jun. 30, 2019
Stockholders Equity Note [Abstract]
Accumulated Other Comprehensive Loss	Accumulated other comprehensive loss consisted of the following (in thousands): Unrealized Gain (Loss) on Available-for-Sale Securities Foreign Currency Translation Adjustments Totals Balance at October 1, 2018 $ (82 ) $ (15,537 ) $ (15,619 ) Changes in unrealized gain on available-for-sale securities, net of tax 82 — 82 Foreign currency translation adjustments — 177 177 Balance at June 30, 2019 $ — $ (15,360 ) $ (15,360 )

Loss Per Common Share (Tables)

Loss Per Common Share (Tables)	9 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Calculation of Net Loss and Weighted Average Common Shares and Common Equivalent Shares Outstanding for Computation of Loss Per Share	The following table summarizes the calculation of net loss and weighted average common shares and common equivalent shares outstanding for purposes of the computation of loss per share (in thousands, except share and per share data): Three Months Ended Nine Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Net loss $ (3,672 ) $ (4,796 ) $ (8,818 ) $ (19,005 ) Less: Loss allocable to unvested restricted stock (12 ) — — — Loss attributable to common shareholders for diluted earnings per share $ (3,684 ) $ (4,796 ) $ (8,818 ) $ (19,005 ) Weighted average number of common share equivalents: Common shares used in basic loss per share 13,405,504 13,266,316 13,381,789 13,244,242 Common share equivalents outstanding related to stock options and RSUs — — — — Total weighted average common shares and common share equivalents used in diluted loss per share 13,405,504 13,266,316 13,381,789 13,244,242 Loss per share: Basic $ (0.27 ) $ (0.36 ) $ (0.66 ) $ (1.43 ) Diluted $ (0.27 ) $ (0.36 ) $ (0.66 ) $ (1.43 )

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Summary of Company's Segment Information	The following table summarizes the Company’s segment information (in thousands): Three Months Ended Nine Months Ended June 30, 2019 June 30, 2018 June 30, 2019 June 30, 2018 Revenue: Oil and Gas Markets $ 14,449 $ 12,345 $ 44,122 $ 31,671 Adjacent Markets 8,234 8,778 22,128 23,058 Emerging Markets 11 — 145 — Corporate 179 147 476 432 Total $ 22,873 $ 21,270 $ 66,871 $ 55,161 Income (loss) from operations: Oil and Gas Markets $ (280 ) $ (4,122 ) $ 451 $ (15,552 ) Adjacent Markets 1,717 1,428 4,350 3,841 Emerging Markets (1,388 ) — (3,760 ) — Corporate (3,384 ) (2,442 ) (9,417 ) (8,252 ) Total $ (3,335 ) $ (5,136 ) $ (8,376 ) $ (19,963 )

Significant Accounting Polici_3

Significant Accounting Policies - Additional Information (Details)	Jun. 30, 2019USD ($)
Accounting Policies [Abstract]
Cash and cash equivalents held by foreign subsidiaries and branch offices	$ 7,500,000
Restricted cash	$ 0

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Disaggregation Of Revenue [Line Items]
Revenue	$ 12,153,000	$ 13,270,000	$ 34,457,000	$ 40,454,000
Cost of revenue recognized from deferred contract cost	35,000		27,000
Deferred Revenue
Disaggregation Of Revenue [Line Items]
Deferred contract liabilities	100,000		100,000		$ 200,000
Prepaid Expenses and Other Current Assets
Disaggregation Of Revenue [Line Items]
Deferred contract costs	0		0		$ 27,000
Deferred Contract Liability
Disaggregation Of Revenue [Line Items]
Revenue	$ 42,000		$ 100,000

Summary of Revenue from the Sal

Summary of Revenue from the Sale of Products and Performance of Services Under Contracts with Customers Excludes All Revenue Earned from Rental Contracts by Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation Of Revenue [Line Items]
Total revenue	$ 12,153	$ 13,270	$ 34,457	$ 40,454
Operating Segments
Disaggregation Of Revenue [Line Items]
Total revenue	12,153	13,270	34,457	40,454
Operating Segments | Oil and Gas Markets
Disaggregation Of Revenue [Line Items]
Total revenue	3,931	4,516	12,254	17,464
Operating Segments | Oil and Gas Markets | Traditional Exploration Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	2,129	2,424	8,116	8,513
Operating Segments | Oil and Gas Markets | Wireless Exploration Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	1,381	273	1,835	4,454
Operating Segments | Oil and Gas Markets | Reservoir Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	421	1,819	2,303	4,497
Operating Segments | Adjacent Markets
Disaggregation Of Revenue [Line Items]
Total revenue	8,211	8,754	22,058	22,990
Operating Segments | Adjacent Markets | Industrial Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	5,364	5,674	13,046	14,061
Operating Segments | Adjacent Markets | Imaging Product Revenue
Disaggregation Of Revenue [Line Items]
Total revenue	2,847	$ 3,080	9,012	$ 8,929
Operating Segments | Emerging Markets
Disaggregation Of Revenue [Line Items]
Total revenue	$ 11		$ 145

Summary of Revenue from the S_2

Summary of Revenue from the Sale of Products and Services Under Contracts with Customers Excludes All Revenue Earned from Rental Contracts by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation Of Revenue [Line Items]
Total revenue	$ 12,153	$ 13,270	$ 34,457	$ 40,454
Operating Segments
Disaggregation Of Revenue [Line Items]
Total revenue	12,153	13,270	34,457	40,454
Operating Segments | Asia
Disaggregation Of Revenue [Line Items]
Total revenue	1,094	1,207	4,162	3,466
Operating Segments | Canada
Disaggregation Of Revenue [Line Items]
Total revenue	1,202	699	1,832	1,409
Operating Segments | Europe
Disaggregation Of Revenue [Line Items]
Total revenue	1,023	1,496	3,108	5,832
Operating Segments | United States
Disaggregation Of Revenue [Line Items]
Total revenue	7,521	9,305	22,396	28,666
Operating Segments | Other
Disaggregation Of Revenue [Line Items]
Total revenue	$ 1,313	$ 563	$ 2,959	$ 1,081

Business Acquisition - Addition

Business Acquisition - Additional Information (Details) - USD ($)	Nov. 13, 2018	Jun. 30, 2019	Sep. 30, 2018
Business Acquisition [Line Items]
Acquisition purchase price		$ 1,819,000
Contingent earn-out liability		12,055,000	$ 7,713,000
Optoseis Technology
Business Acquisition [Line Items]
Business acquisition date	Nov. 13, 2018
Acquisition purchase price	$ 1,800,000
Contingent payments maximum earn-out amount	$ 23,200,000
Contingent payments earn-out period	5 years 6 months
Goodwill	$ 700,000
Other intangible assets	3,700,000
Fixed assets	1,700,000
Contingent earn-out liability	4,300,000
Legal costs	$ 200,000
Goodwill, period increase (decrease)		1,000,000
Increase decrease in other intangible assets		800,000
Optoseis Technology | Machinery and Equipment
Business Acquisition [Line Items]
Property plant and equipment, Additions		$ 1,800,000

Short-term Investments - Additi

Short-term Investments - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Short Term Investments [Abstract]
Realized investment gains (losses)	$ 1,000	$ 0	$ (66,000)	$ (1,000)
Short-term investments	$ 0		$ 0		$ 25,471,000

Short-term Investments (Details

Short-term Investments (Details) $ in Thousands	Sep. 30, 2018USD ($)
Schedule Of Available For Sale Securities [Line Items]
Short-term Investments, Amortized Cost	$ 25,553
Short-term Investments, Unrealized Losses	(82)
Short-term Investments, Estimated Fair Value	25,471
Corporate bonds
Schedule Of Available For Sale Securities [Line Items]
Short-term Investments, Amortized Cost	17,851
Short-term Investments, Unrealized Losses	(60)
Short-term Investments, Estimated Fair Value	17,791
Government bonds
Schedule Of Available For Sale Securities [Line Items]
Short-term Investments, Amortized Cost	7,702
Short-term Investments, Unrealized Losses	(22)
Short-term Investments, Estimated Fair Value	$ 7,680

Derivative Financial Instrume_3

Derivative Financial Instruments - Additional Information (Details) - CAD ($) $ in Millions	Jun. 28, 2019	Jun. 30, 2019	Sep. 30, 2018
Canadian Dollar Forward Contract
Derivative [Line Items]
Foreign currency forward contract to hedge	$ 7
Foreign currency forward contract term	90 days
Canadian Subsidiary
Derivative [Line Items]
Denominated intercompany accounts payable		$ 8.9	$ 20.4

Gross Fair Value of all Derivat

Gross Fair Value of all Derivative Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Foreign Currency Forward Contracts | Accrued Expenses and Other Current Liabilities
Derivatives Fair Value [Line Items]
Derivatives Liabilities	$ 7	$ 270

Company's Derivatives on Consol

Company's Derivatives on Consolidated Financial Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Foreign Currency Forward Contracts | Other Income (Expense)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amount of (Loss) Gain Recognized in Income	$ (142)	$ 601	$ 497	$ 1,176

Trade Accounts Receivable, Net

Trade Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Current trade accounts receivable
Trade accounts receivable	$ 15,789	$ 15,776
Allowance for doubtful accounts	(1,050)	(1,453)
Total current trade accounts receivable	$ 14,739	$ 14,323

Trade Accounts and Financing _3

Trade Accounts and Financing Receivables - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Accounts Notes And Loans Receivable [Line Items]
Trade accounts receivable		$ 15,789		$ 15,789		$ 15,776
Revenue		12,153	$ 13,270	34,457	$ 40,454
Single Customer
Accounts Notes And Loans Receivable [Line Items]
Trade accounts receivable		$ 5,400		5,400
Revenue				$ 14,600
Single Customer | Subsequent Event
Accounts Notes And Loans Receivable [Line Items]
Proceeds from trade accounts receivable	$ 1,100

Financing Receivables (Details)

Financing Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Accounts Notes And Loans Receivable [Line Items]
Total financing receivables	$ 7,831	$ 11,179
Total unearned income	(185)	(332)
Total financing receivables, net of unearned income	7,646	10,847
Allowance for doubtful promissory notes	(2,354)	(1,849)
Less current portion	(3,584)	(4,258)
Non-current financing receivables	1,708	4,740
Promissory Notes
Accounts Notes And Loans Receivable [Line Items]
Total financing receivables	4,426	5,646
Total unearned income	(95)	(95)
Sales Type Lease
Accounts Notes And Loans Receivable [Line Items]
Total financing receivables	3,405	5,533
Total unearned income	$ (90)	$ (237)

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Inventory Disclosure [Abstract]
Finished goods	$ 19,713	$ 18,802
Work in process	5,321	7,926
Raw material	55,933	54,290
Obsolescence reserve	(31,699)	(30,551)
Total	49,268	50,467
Less current portion	(17,003)	(18,812)
Non-current portion	$ 32,265	$ 31,655

Inventories - Additional Inform

Inventories - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Inventory Disclosure [Abstract]
Inventories transferred to rental equipment	$ 1.8	$ 23.5
Raw materials include semi-finished goods and component parts	$ 27.1		$ 29

Property Held for Sale - Additi

Property Held for Sale - Additional Information (Details) - USD ($) $ in Millions	Aug. 01, 2019	Jun. 30, 2019
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Carrying value of property reclassified to property held for sale		$ 1.4
Subsequent Event | Gessner Road, Houston, Texas [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of real property for cash price	$ 8.6

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)	9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Nov. 30, 2018	Sep. 30, 2018
Goodwill And Other Intangible Assets [Line Items]
Goodwill	$ 5,007,000			$ 4,343,000
Amortization expense	1,228,000	$ 0
Optoseis Technology
Goodwill And Other Intangible Assets [Line Items]
Goodwill	5,007,000		$ 700,000	4,343,000
Other intangible assets	$ 11,919,000		$ 3,700,000	$ 8,200,000

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2019	Nov. 30, 2018	Sep. 30, 2018
Goodwill And Other Intangible Assets [Line Items]
Goodwill	$ 5,007		$ 4,343
Other intangible assets, net	10,497		8,006
Optoseis Technology
Goodwill And Other Intangible Assets [Line Items]
Goodwill	5,007	$ 700	4,343
Total other intangible assets	11,919	$ 3,700	8,200
Accumulated amortization	(1,422)		(194)
Other intangible assets, net	$ 10,497		8,006
Weighted-Average Remaining Useful Lives (in years)	10 years 6 months
Optoseis Technology | Developed Technology
Goodwill And Other Intangible Assets [Line Items]
Total other intangible assets	$ 5,919		4,200
Weighted-Average Remaining Useful Lives (in years)	17 years 4 months 24 days
Optoseis Technology | Customer Relationships
Goodwill And Other Intangible Assets [Line Items]
Total other intangible assets	$ 3,900		2,500
Weighted-Average Remaining Useful Lives (in years)	3 years 4 months 24 days
Optoseis Technology | Trade Names
Goodwill And Other Intangible Assets [Line Items]
Total other intangible assets	$ 1,930		1,400
Weighted-Average Remaining Useful Lives (in years)	4 years 6 months
Optoseis Technology | Non-compete Agreements
Goodwill And Other Intangible Assets [Line Items]
Total other intangible assets	$ 170		$ 100
Weighted-Average Remaining Useful Lives (in years)	3 years 6 months

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Future Estimated Amortization Expense Of Other intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Three months ending September 30, 2019	$ 433
2020	1,732
2021	1,732
2022	1,624
2023	714
Thereafter	4,262
Other intangible assets, net	$ 10,497	$ 8,006

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Beginning Balance	$ 172,953	$ 183,226	$ 176,587	$ 194,803
Changes in unrealized gain on available-for-sale securities, net of tax	(1)	36	82	(53)
Foreign currency translation adjustments	157	(1,198)	177	(364)
Ending Balance	170,024	177,758	170,024	177,758
Unrealized Gain (Loss) on Available-for-Sale Securities
Beginning Balance			(82)
Changes in unrealized gain on available-for-sale securities, net of tax			82
Foreign Currency Translation Adjustments
Beginning Balance			(15,537)
Foreign currency translation adjustments			177
Ending Balance	(15,360)		(15,360)
Accumulated Other Comprehensive Loss
Beginning Balance	(15,516)	(12,970)	(15,619)	(14,230)
Ending Balance	$ (15,360)	$ (14,132)	$ (15,360)	$ (14,132)

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Details)	9 Months Ended
	Jun. 30, 2019USD ($)$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense | $	$ 22,000
Expected period for recognition of unrecognized compensation expense	4 months 24 days
Nonqualified stock options unvested and outstanding | shares	165,600
Restricted Stock Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share unvested and outstanding | shares	226,537
Restricted Stock Awards | 2014 Long Term Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued | shares	8,000
Weighted average grant date fair value of the restricted stock | $ / shares	$ 14.59
Grant date fair value of restricted stock issued | $	$ 100,000
Restricted stock restriction period	4 years
Unrecognized compensation expense | $	$ 2,700,000
Expected period for recognition of unrecognized compensation expense	2 years 1 month 6 days
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share unvested and outstanding | shares	161,300
Restricted Stock Units (RSUs) | 2014 Long Term Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued | shares	161,800
Weighted average grant date fair value of the restricted stock | $ / shares	$ 15.11
Restricted stock restriction period	4 years
Unrecognized compensation expense | $	$ 2,100,000
Expected period for recognition of unrecognized compensation expense	3 years 4 months 24 days
Grant date fair value of restricted stock | $	$ 2,400,000
Restricted stock units vesting rights	Each RSU represents a contingent right to receive one share of the Company’s common stock upon vesting.

Loss Per Common Share - Additio

Loss Per Common Share - Additional Information (Details)	3 Months Ended		9 Months Ended
	Jun. 30, 2019shares	Jun. 30, 2018shares	Jun. 30, 2019shares	Jun. 30, 2018shares
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Split of common stock ratio			2
Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Number of stock excluded from calcuation of weighted average shares outstandiing	163,800	194,600	163,800	194,600
Non-Vested RSUs
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Number of stock excluded from calcuation of weighted average shares outstandiing	161,300	0	161,300	0

Calculation of Net Loss and Wei

Calculation of Net Loss and Weighted Average Common Shares and Common Equivalent Shares Outstanding for Computation of Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net loss	$ (3,672)	$ 707	$ (5,853)	$ (4,796)	$ (4,729)	$ (9,480)	$ (8,818)	$ (19,005)
Less: Loss allocable to unvested restricted stock	(12)
Loss attributable to common shareholders for diluted earnings per share	$ (3,684)			$ (4,796)			$ (8,818)	$ (19,005)
Weighted average common shares outstanding:
Common shares used in basic loss per share	13,405,504			13,266,316			13,381,789	13,244,242
Total weighted average common shares and common share equivalents used in diluted loss per share	13,405,504			13,266,316			13,381,789	13,244,242
Loss per share:
Basic	$ (0.27)			$ (0.36)			$ (0.66)	$ (1.43)
Diluted	$ (0.27)			$ (0.36)			$ (0.66)	$ (1.43)

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($)	Nov. 13, 2018	Jul. 27, 2018	Jun. 30, 2019	Sep. 30, 2018
Commitments And Contingencies [Line Items]
Contingent earn-out liability			$ 12,055,000	$ 7,713,000
Quantum
Commitments And Contingencies [Line Items]
Contingent earn-out liability		$ 7,700,000
Contingent payments earn-out period		4 years
Contingent payments maximum earn-out amount		$ 23,500,000
Optoseis Technology
Commitments And Contingencies [Line Items]
Contingent earn-out liability	$ 4,300,000
Contingent payments earn-out period	5 years 6 months
Contingent payments maximum earn-out amount	$ 23,200,000

Segment Information - Additiona

Segment Information - Additional Information (Details)	9 Months Ended
	Jun. 30, 2019Segment
Segment Reporting [Abstract]
Number of operating segments	3

Summary of Company's Segment In

Summary of Company's Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Revenue	$ 22,873	$ 21,270	$ 66,871	$ 55,161
Income (loss) from operations	(3,335)	(5,136)	(8,376)	(19,963)
Operating Segments | Oil and Gas Markets
Segment Reporting Information [Line Items]
Revenue	14,449	12,345	44,122	31,671
Income (loss) from operations	(280)	(4,122)	451	(15,552)
Operating Segments | Adjacent Markets
Segment Reporting Information [Line Items]
Revenue	8,234	8,778	22,128	23,058
Income (loss) from operations	1,717	1,428	4,350	3,841
Operating Segments | Emerging Markets
Segment Reporting Information [Line Items]
Revenue	11		145
Income (loss) from operations	(1,388)		(3,760)
Corporate
Segment Reporting Information [Line Items]
Revenue	179	147	476	432
Income (loss) from operations	$ (3,384)	$ (2,442)	$ (9,417)	$ (8,252)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
United States statutory tax rate				21.00%		35.00%
Decrease in deferred tax asset due to Tax Act					$ 8,100
Income tax expense (benefit)	$ 700	$ 53		$ 1,257	$ (617)
Proceeds from income tax refunds			$ 700