Carbo Ceramics (CRRTQ) 10-Q 26 Jul 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 20, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	CRR
Entity Registrant Name	CARBO CERAMICS INC
Entity Central Index Key	1,009,672
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		27,740,451

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 45,681	$ 68,169
Restricted cash	5,408	6,935
Trade accounts and other receivables, net	45,051	37,705
Inventories:
Finished goods	55,519	59,519
Raw materials and supplies	21,962	19,480
Total inventories	77,481	78,999
Prepaid expenses and other current assets	5,877	3,989
Total current assets	179,498	195,797
Restricted cash	3,857	3,281
Income tax receivable	2,292	2,389
Property, plant and equipment:
Land and land improvements	41,590	41,590
Land-use and mineral rights	19,696	19,696
Buildings	72,443	72,427
Machinery and equipment	454,826	455,863
Construction in progress	36,312	36,138
Total property, plant and equipment	624,867	625,714
Less accumulated depreciation and amortization	317,185	301,528
Net property, plant and equipment	307,682	324,186
Goodwill	3,500	3,500
Intangible and other assets, net	7,128	11,445
Total assets	503,957	540,598
Current liabilities:
Accounts payable	18,075	19,417
Accrued payroll and benefits	5,383	6,056
Accrued freight	1,422	2,292
Accrued utilities	1,501	1,552
Derivative instruments	1,189	2,537
Notes payable, related parties	27,040
Other current liabilities	9,058	10,577
Total current liabilities	63,668	42,431
Deferred income taxes	234	230
Long-term debt, net	61,039	60,698
Notes payable, related parties		27,040
Other long-term liabilities	5,863	4,434
Shareholders' equity:
Preferred stock, par value $0.01 per share, 5,000 shares authorized, none outstanding
Common stock, par value $0.01 per share, 80,000,000 shares authorized; 27,743,512 and 27,133,614 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively	278	271
Additional paid-in capital	130,600	125,715
Retained earnings	242,275	279,779
Total shareholders' equity	373,153	405,765
Total liabilities and shareholders' equity	$ 503,957	$ 540,598

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, share authorized	5,000	5,000
Preferred stock, share outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, share authorized	80,000,000	80,000,000
Common stock, share issued	27,743,512	27,133,614
Common stock, share outstanding	27,743,512	27,133,614

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenues	$ 57,989	$ 43,572	$ 107,356	$ 78,242
Cost of sales (exclusive of depreciation and amortization shown below)	50,818	46,138	101,788	89,025
Depreciation and amortization	8,323	10,867	16,735	22,108
Gross loss	(1,152)	(13,433)	(11,167)	(32,891)
Selling, general and administrative expenses (exclusive of depreciation and amortization shown below)	10,685	9,623	20,292	19,779
Depreciation and amortization	620	642	1,234	1,283
Loss on sale of Russian proppant business	350	0	350	0
Gain on disposal or impairment of assets	(55)	0	(59)	0
Operating loss	(12,752)	(23,698)	(32,984)	(53,953)
Other expense:
Interest expense, net	(2,084)	(1,627)	(4,101)	(3,715)
Other, net	31	4	8	191
Nonoperating income (expense), total	(2,053)	(1,623)	(4,093)	(3,524)
Loss before income taxes	(14,805)	(25,321)	(37,077)	(57,477)
Income tax expense (benefit)	7	(499)	7	(211)
Net loss	$ (14,812)	$ (24,822)	$ (37,084)	$ (57,266)
Loss per share:
Basic	$ (0.55)	$ (0.93)	$ (1.38)	$ (2.15)
Diluted	(0.55)	(0.93)	(1.38)	(2.15)
Other information:
Dividends declared per common share	$ 0	$ 0	$ 0	$ 0

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (14,812)	$ (24,822)	$ (37,084)	$ (57,266)
Other comprehensive income:
Foreign currency translation adjustment		(1,027)		677
Comprehensive loss	$ (14,812)	$ (25,849)	$ (37,084)	$ (56,589)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Operating activities
Net loss			$ (37,084)	$ (57,266)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	$ 8,944	$ 11,509	17,969	23,391
Amortization of debt issuance costs and original issue discount			340	710
Provision for doubtful accounts			81	413
Deferred income taxes			4	618
Gain on disposal or impairment of assets	(55)	0	(59)	0
Loss on sale of Russian proppant business	350	0	350	0
Foreign currency transaction loss, net			0	2
Stock compensation expense			2,254	2,750
PIK accrual on notes payable, related parties			0	997
Change in fair value of derivative instruments			(1,348)	159
Changes in operating assets and liabilities:
Trade accounts and other receivables			(3,777)	(14,128)
Inventories			836	4,689
Prepaid expenses and other current assets			(407)	(553)
Accounts payable			(1,341)	1,214
Accrued expenses			(4,303)	1,853
Income tax receivable, net			97	(1,171)
Other, net			2,126	1,405
Net cash used in operating activities			(24,262)	(34,917)
Investing activities
Capital expenditures			(1,105)	(1,176)
Net cash used in investing activities			(1,105)	(1,176)
Financing activities
Repayments on long-term debt			0	(3,250)
Repayments on insurance financing agreement			(500)	(551)
Payments of debt issuance costs			0	(875)
Purchase of common stock			(421)	(533)
Net cash provided by (used in) financing activities			1,928	(5,209)
Effect of exchange rate changes on cash			0	249
Net decrease in cash and cash equivalents and restricted cash			(23,439)	(41,053)
Cash and cash equivalents and restricted cash at beginning of period			78,385	91,680	$ 91,680
Cash and cash equivalents and restricted cash at end of period	$ 54,946	$ 50,627	54,946	50,627	$ 78,385
Supplemental cash flow information
Interest paid			3,850	761
Income taxes paid			0	0
ATM Program
Financing activities
Proceeds from sale of common stock under ATM program			$ 2,849	$ 0

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Basis of Presentation	1. Basis of Presentation The accompanying unaudited consolidated financial statements of CARBO Ceramics Inc. have been prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required for complete financial statements. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, considered necessary for a fair presentation have been included. The results of the interim periods presented herein are not necessarily indicative of the results to be expected for any other interim period or the full year. The consolidated balance sheet as of December 31, 2017 has been derived from the audited financial statements at that date. These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2017 included in the annual report on Form 10-K of CARBO Ceramics Inc. for the year ended December 31, 2017. The consolidated financial statements include the accounts of CARBO Ceramics Inc. and its operating subsidiaries (the “Company”). All significant intercompany transactions have been eliminated. As of June 30, 2018, the Company was producing ceramic proppants and technology ceramic products from its Eufaula, Alabama manufacturing facility, and processing sand at its Marshfield, Wisconsin facility. As needed, the Company produces ceramic proppant, ceramic media for the industrial markets, and contract manufacturing at our Toomsboro, Georgia and McIntyre, Georgia facilities. Our Millen, Georgia facility is currently mothballed, and we do not expect to resume production or complete the second line of the facility, and we are exploring ways to monetize these assets. The carrying value of the second line of the Millen facility is $6,753 as of June 30, 2018 and is included within construction in progress on the consolidated balance sheet. The Company continues to focus on diversifying its revenue streams to more oilfield technology products, industrial ceramic products, contract manufacturing, and frac sand. As a result of the steps the Company has taken to enhance its liquidity, the Company currently believes that cash on hand will enable the Company to meet its working capital, capital expenditure, debt service and other funding requirements for at least one year from the date of this Form 10-Q. The Company’s view regarding sufficiency of cash and liquidity is primarily based on our financial forecast for the remainder of 2018 and 2019, which is impacted by various assumptions regarding demand and sales prices for our products. Although the Company has observed certain factors that could be indicative of improving industry conditions, its financial forecasts in recent periods have not always been accurate due to the inability to estimate customer demand, which is highly volatile in the current operating environment. The Company has no committed sales backlog from its customers. As a result, there is no guarantee that its financial forecast, which projects sufficient cash will be available to meet planned operating expenses and other cash needs, will be achieved. Completion of the second phase of the retrofit of our Eufaula, Alabama plant with our new KRYPTOSPHERE ® Late in the second quarter, we settled our dispute with the buyer of our Russian proppant business regarding the additional $4,000 owed to us. Terms of the settlement required the buyer to pay $3,650, and as a result we recorded a loss of $350. In July 2018, we received the settlement proceeds of approximately $3,650. As of June 30, 2018, the amount owed to us was reclassified from other noncurrent assets to trade accounts and other receivables, net. This transaction represented a noncash change during the six months ended June 30, 2018. Deferred Taxes – Valuation Allowance Accounting Standards Codification (“ASC”) Topic 740, Income Taxes, provides the carrying value of deferred tax assets should be reduced by the amount not expected to be realized. A company should reduce deferred tax assets by a valuation allowance if, based on the weight of all available evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. The valuation allowance should be sufficient to reduce the deferred tax asset to the amount that is more likely than not to be realized. ASC 740 requires all available evidence, both positive and negative, be considered to determine whether a valuation allowance for deferred tax assets is needed in the financial statements. Additionally there can be statutory limitations on the deferred tax assets should certain conditions arise. Restricted Cash A portion of the Company’s cash balance is restricted to its use in order to provide collateral, primarily relating to letters of credit and corporate credit cards. As of June 30, 2018 and December 31, 2017, total restricted cash was $9,265 and $10,216, respectively. Lower of Cost and Net Realizable Value Adjustments As of June 30, 2018, the Company reviewed the carrying values of all inventories and concluded that no adjustments were warranted for finished goods and raw materials intended for use in the Company’s manufacturing process. Manufacturing Production Levels Below Normal Capacity As a result of the Company substantially reducing manufacturing production levels, including by idling certain facilities, certain production costs have been expensed instead of being capitalized into inventory. The Company expenses fixed production overhead amounts in excess of amounts that would have been allocated to each unit of production at normal production levels. For the three months ended June 30, 2018 and 2017, the Company expensed $6,834 and $10,797, respectively, in production costs. For the six months ended June 30, 2018 and 2017, the Company expensed $16,557 and $22,009, respectively, in production costs. Long-lived and other noncurrent assets impairment The Company has temporarily idled production at various manufacturing facilities. The Company does not assess temporarily idled assets for impairment unless events or circumstances indicate that the carrying amounts of those assets may not be recoverable. Short-term stoppages of production for less than one year do not generally significantly impact the long-term expected cash flows of the idled facility. As of June 30, 2018, the Company concluded that there were no events or circumstances that would indicate that carrying amounts of long-lived and other noncurrent assets might be impaired. However, the Company continues to monitor market conditions closely. Further deterioration of market conditions could result in impairment charges being taken on the Company’s long-lived and other noncurrent assets, including the Company’s manufacturing plants, goodwill and intangible assets. The Company will evaluate long-lived and other noncurrent assets for impairment at such time that events or circumstances indicate that carrying amounts might be impaired. Reclassification of prior period amounts Certain prior period financial information has been reclassified to conform to current period presentation.

Loss Per Share

Loss Per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Loss Per Share	2. Loss Per Share The following table sets forth the computation of basic and diluted loss per share under the two-class method: Three months ended Six months ended June 30, June 30, 2018 2017 2018 2017 Numerator for basic and diluted loss per share: Net loss $ (14,812 ) $ (24,822 ) $ (37,084 ) $ (57,266 ) Effect of reallocating undistributed earnings of participating securities — — — — Net loss available under the two-class method $ (14,812 ) $ (24,822 ) $ (37,084 ) $ (57,266 ) Denominator: Denominator for basic loss per share--weighted-average shares 26,930,914 26,665,092 26,860,146 26,636,394 Effect of dilutive potential common shares — — — — Denominator for diluted loss per share--adjusted weighted-average shares 26,930,914 26,665,092 26,860,146 26,636,394 Basic loss per share $ (0.55 ) $ (0.93 ) $ (1.38 ) $ (2.15 ) Diluted loss per share $ (0.55 ) $ (0.93 ) $ (1.38 ) $ (2.15 )

Natural Gas Derivative Instrume

Natural Gas Derivative Instruments	6 Months Ended
	Jun. 30, 2018
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Natural Gas Derivative Instruments	3. Natural Gas Derivative Instruments Natural gas is used to fire the kilns at the Company’s domestic manufacturing plants. In an effort to mitigate potential volatility in the cost of natural gas purchases and reduce exposure to short-term spikes in the price of this commodity, from time to time, the Company enters into contracts to purchase a portion of the anticipated monthly natural gas requirements at specified prices. Contracts are geographic by plant location. As a result of the Company’s significantly reducing production levels and not taking delivery of all of the contracted natural gas quantities, the Company accounts for relevant contracts as derivative instruments. Derivative accounting requires the natural gas contracts to be recognized as either assets or liabilities at fair value with an offsetting entry in earnings. The Company uses the income approach in determining the fair value of these derivative instruments. The model used considers the difference, as of each balance sheet date, between the contracted prices and the New York Mercantile Exchange (“NYMEX”) forward strip price for each contracted period. The estimated cash flows from these contracts are discounted using a discount rate of 8.0%, which reflects the nature of the contracts as well as the timing and risk of estimated cash flows associated with the contracts. The discount rate had an immaterial impact on the fair value of the contracts for the six months ended June 30, 2018. The last of these natural gas contracts will expire in December 2018. During the three months ended June 30, 2018 and 2017, the Company recognized a $412 gain and $309 loss, respectively, in cost of sales on derivative instruments. During the six months ended June 30, 2018 and 2017, the Company recognized a $630 gain and $1,200 loss, respectively, in cost of sales on derivative instruments. The cumulative present value of these natural gas derivative contracts as of June 30, 2018 are presented as current liabilities in the Consolidated Balance Sheet. At June 30, 2018, the Company had contracted for delivery a total of 960,000 MMBtu of natural gas at an average price of $4.31 per MMBtu through December 31, 2018. Contracts covering 900,000 MMBtu are subject to accounting as derivative instruments. Future decreases in the NYMEX forward strip prices will result in additional derivative losses while future increases in the NYMEX forward strip prices will result in derivative gains. Future gains or losses will approximate the change in NYMEX natural gas prices relative to the total quantity of natural gas under contracts now subject to accounting as derivatives. The historical average NYMEX natural gas contract settlement prices for the three months ended June 30, 2018 and 2017 were $2.80 per MMBtu and $3.18 per MMBtu, respectively.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. Fair Value Measurements The Company’s derivative instruments are measured at fair value on a recurring basis. U.S. GAAP establishes a fair value hierarchy that has three levels based on the reliability of the inputs used to determine the fair value. These levels include: (1) Level 1, defined as inputs such as unadjusted quoted prices in active markets for identical assets or liabilities; (2) Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and (3) Level 3, defined as unobservable inputs for use when little or no market data exists, therefore requiring an entity to develop its own assumptions. The Company’s natural gas derivative instruments are included within Level 2 of the fair value hierarchy (see Note 3 herein for additional information on the derivative instruments). The following table sets forth by level within the fair value hierarchy the Company’s assets and liabilities that were accounted for at fair value: Fair value as of June 30, 2018 Level 1 Level 2 Level 3 Total Liabilities: Derivative instruments — (1,189 ) — (1,189 ) Total fair value $ — $ (1,189 ) $ — $ (1,189 ) Fair value as of December 31, 2017 Level 1 Level 2 Level 3 Total Liabilities: Derivative instruments — (2,537 ) — (2,537 ) Total fair value $ — $ (2,537 ) $ — $ (2,537 ) At June 30, 2018, the fair value of the Company’s long-term debt approximated the carrying value.

Stock Based Compensation

Stock Based Compensation	6 Months Ended
	Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Based Compensation	5. Stock Based Compensation T he Amended and Restated 2014 CARBO Ceramics Inc. Omnibus Incentive Plan (the “Amended and Restated 2014 Omnibus Incentive Plan”) provides for granting of cash-based awards, stock options (both non-qualified and incentive) and other equity-based awards (including stock appreciation rights, phantom stock, restricted stock, restricted stock units, performance shares, deferred share units or share-denominated performance units) to employees and non-employee directors. A summary of restricted stock activity and related information for the six months ended June 30, 2018 is presented below: Shares Weighted-Average Grant-Date Fair Value Per Share Nonvested at January 1, 2018 441,119 $ 14.87 Granted 334,638 $ 12.16 Vested (200,394 ) $ 18.20 Forfeited (1,152 ) $ 12.06 Nonvested at June 30, 2018 574,211 $ 12.13 As of June 30, 2018, there was $5,515 of total unrecognized compensation cost related to restricted shares granted under the Amended and Restated 2014 Omnibus Incentive Plan. That cost is expected to be recognized over a weighted-average period of 2.1 years. The total fair value of shares vested during the six months ended June 30, 2018 was $1,567. The Company made market-based cash awards to certain executives of the Company pursuant to the Amended and Restated 2014 Omnibus Incentive Plan. As of June 30, 2018, the total target award outstanding was $3,210. The payout of awards can range from 0% to 200% based on the Company’s Relative Total Shareholder Return calculated over a three year period beginning January 1 of the year each grant was made. During the six months ended June 30, 2018, a total of $526 was paid relating to the 2015 grant, which was approximately 76% of the total target award. The Company also granted phantom stock and cash-settled restricted stock units (collectively discussed as “phantom stock”) to certain key employees pursuant to the Amended and Restated 2014 Omnibus Incentive Plan. The units subject to a phantom stock award vest and cease to be forfeitable in equal annual installments over a three-year period. Participants awarded units of phantom stock are entitled to a lump sum cash payment equal to the fair market value of a share of Common Stock on the vesting date. In no event will Common Stock of the Company be issued with regard to outstanding phantom stock awards. As of June 30, 2018, there were 214,616 units of phantom stock granted under the Amended and Restated 2014 Omnibus Incentive Plan, of which 54,020 have vested and 12,950 have been forfeited. As of June 30, 2018, nonvested units of phantom stock under the Amended and Restated 2014 Omnibus Incentive Plan had a total value of $1,354, a portion of which is accrued as a liability within Accrued Payroll and Benefits. Compensation expense for these units of phantom stock will be recognized over the three-year vesting period. The amount of compensation expense recognized each period will be based on the fair value of the Company’s common stock at the end of each period.

Long-Term Debt and Notes Payabl

Long-Term Debt and Notes Payable	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Long-Term Debt and Notes Payable	6. Long-Term Debt and Notes Payable On March 2, 2017, the Company entered into an Amended and Restated Credit Agreement (the “New Credit Agreement”), as last amended on June 7, 2018, with Wilks Brothers, LLC (“Wilks”) to replace its current term loan with Wells Fargo Bank, National Association (“Wells Fargo”) and provide the Company with additional liquidity for a longer term. The New Credit Agreement is a $65,000 facility maturing on December 31, 2022. The Company’s obligations bear interest at 9.00% and are guaranteed by its two domestic operating subsidiaries. No principal repayments are required until maturity (except in unusual circumstances), and there are no financial covenants. In lieu of making cash interest payments, the Company has the option during the first two years of the loan to make interest payments as payment-in-kind, or PIK, by applying an 11.00% rate to the interest payment due (instead of the 9.00% cash interest rate) and capitalizing the resulting amount to the outstanding principal balance of the loan. The Company is required to provide Wilks 30 day notice of its intent to exercise this option for an interest payment. The Company does not anticipate utilizing this option and has therefore accrued interest expense using the 9.00% cash interest rate. As of June 30, 2018, the Company’s outstanding debt under its New Credit Agreement was $65,000. As of June 30, 2018, the Company had $768 of unamortized debt issuance costs relating to the New Credit Agreement that are presented as a direct reduction from the carrying amount of the long-term debt obligation. The Company had $7,775 and $9,230 in standby letters of credit issued through Wells Fargo as of June 30, 2018 and December 31, 2017, respectively, primarily as collateral relating to our natural gas commitments and railcar leases. On March 2, 2017, in connection with entry into the New Credit Agreement, the Company issued a Warrant (the “Warrant”) to Wilks. Subject to the terms of the Warrant, the Warrant entitles the holder thereof to purchase up to 523,022 shares of the Common Stock, at an exercise price of $14.91 per share, payable in cash. The Warrant expires on December 31, 2022. Based on a Form 4 filing with the SEC on December 29, 2017, as of June 30, 2018, Wilks owned approximately 11.2% of the Company’s outstanding common stock, and should Wilks fully exercise the Warrant to purchase an additional 523,022 shares, it would hold approximately 13.1% of the Company’s outstanding common stock. Upon issuance of the Warrant, the Company recorded an increase to additional paid-in capital of $3,871. As of June 30, 2018, the unamortized original issue discount was $3,193. In May 2016, the Company received proceeds of $25,000 from the issuance of separate unsecured Promissory Notes (the “Notes”) to two of the Company’s Directors. Each Note matures on April 1, 2019 and bears interest at 7.00%. On March 2, 2017, in connection with the New Credit Agreement, the Notes were amended to provide for payment-in-kind, or PIK, interest payments at 8.00% until the lenders under the New Credit Agreement receive two consecutive semi-annual cash interest payments. During 2017, the Company made $2,040 interest payments as PIK, and capitalized the resulting amount to the outstanding principal balance. As of July 26, 2018, the outstanding principal balance of the Notes was $27,040. Interest expense for the six months ended June 30, 2018 and 2017 was $4,137 and $3,965, respectively. Interest expense primarily relates to interest on our debts as well as amortization of debt issuance costs and amortization of the original issue discount associated with the New Credit Agreement and Warrant.

Equity Offering

Equity Offering	6 Months Ended
	Jun. 30, 2018
Stockholders Equity Note [Abstract]
Equity Offering	7. Equity Offering On July 28, 2016, the Company filed a prospectus supplement and associated sales agreement related to an at-the-market (“ATM”) equity offering program pursuant to which the Company may sell, from time to time, common stock having an aggregate offering price of up to $75,000 through Cowen and Company LLC, as sales agent, for general corporate purposes. During the quarter-ended June 30, 2018, the Company sold a total of 300,227 shares of its common stock under the ATM program for $2,914, or an average of $9.71 per share, and received proceeds of $2,849, net of commissions of $65. As of June 30, 2018, the Company sold a total of 3,705,936 shares of its common stock under the ATM program for $49,527, or an average of $13.36 per share, and received proceeds of $48,412, net of commissions of $1,114.

Disaggregated Revenue

Disaggregated Revenue	6 Months Ended
	Jun. 30, 2018
Disaggregation Of Revenue [Abstract]
Disaggregated Revenue	8. Disaggregated Revenue The following table disaggregates our revenue by product line for the three and six months ended June 30, 2018 and 2017: Three Months Ended Six Months Ended June 30, June 30, 2018 2017 2018 2017 Technology products and services $ 12,786 $ 8,526 $ 22,656 $ 17,730 Industrial products and services 3,269 2,552 6,562 4,418 Base ceramic and sand proppants 33,733 26,124 63,038 44,675 Oilfield and Industrial technologies and services segment 49,788 37,202 92,256 66,823 Environmental technologies and services segment 8,201 6,370 15,100 11,419 $ 57,989 $ 43,572 $ 107,356 $ 78,242

New Accounting Pronouncements

New Accounting Pronouncements	6 Months Ended
	Jun. 30, 2018
Accounting Changes And Error Corrections [Abstract]
New Accounting Pronouncements	9. New Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, “ Leases (Topic 842) In June 2018, the FASB issued ASU No. 2018-07, “Compensation – Stock Compensation (Topic 718) – Improvements to Nonemployee Share-Based Payment Accounting”

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Segment Information	10. Segment Information The Company has two operating segments: 1) oilfield and industrial technologies and services and 2) environmental technologies and services. Discrete financial information is available for each operating segment. Management of each operating segment reports to our Chief Executive Officer, the Company’s chief operating decision maker, who regularly evaluates income before income taxes as the measure to evaluate segment performance and to allocate resources. The accounting policies of each segment are the same as those described in the summary of significant accounting policies in Note 1 of the consolidated financial statements included in the annual report on Form 10-K for the year ended December 31, 2017. The Company’s oilfield and industrial technologies and services segment manufactures and sells technology ceramic, base ceramic, and frac sand proppants for use primarily in the hydraulic fracturing of natural gas and oil wells. All of the Company’s ceramic proppant products have similar production processes and economic characteristics and are marketed predominantly to pressure pumping companies that perform hydraulic fracturing for major oil and gas companies. The Company’s manufacturing facilities also produce ceramic media for use in various industrial technology applications, including but not limited to casting and milling. This segment also promotes increased production and Estimated Ultimate Recovery (“EUR”) of oil and natural gas by providing industry-leading technology to Design, Build, and Optimize the Frac TM ® Our environmental technologies and services segment is intended to protect operators’ assets, minimize environmental risks, and lower lease operating expense (“LOE”). AGPI, a wholly-owned subsidiary of ours, provides spill prevention, containment and countermeasure systems for the oil and gas industry. AGPI uses proprietary technology designed to enable its clients to extend the life of their storage assets, reduce the potential for hydrocarbon spills and provide containment of stored materials. Summarized financial information for the Company’s operating segments for the three and six months ended June 30, 2018 and 2017 is shown in the following tables. Intersegment sales are not material. Oilfield and Industrial Technologies and Services Environmental Technologies and Services Total Three Months Ended June 30, 2018 Revenue from external customers $ 49,788 $ 8,201 $ 57,989 (Loss) income before income taxes (15,545 ) 740 (14,805 ) Depreciation and amortization 8,647 297 8,944 Three Months Ended June 30, 2017 Revenue from external customers $ 37,202 $ 6,370 $ 43,572 (Loss) income before income taxes (25,436 ) 115 (25,321 ) Depreciation and amortization 11,178 331 11,509 Six Months Ended June 30, 2018 Revenue from external customers $ 92,256 $ 15,100 $ 107,356 (Loss) income before income taxes (38,312 ) 1,235 (37,077 ) Depreciation and amortization 17,383 586 17,969 Six Months Ended June 30, 2017 Revenue from external customers $ 66,823 $ 11,419 $ 78,242 Loss before income taxes (57,199 ) (278 ) (57,477 ) Depreciation and amortization 22,724 667 23,391

Legal Proceedings

Legal Proceedings	6 Months Ended
	Jun. 30, 2018
Commitments And Contingencies Disclosure [Abstract]
Legal Proceedings	11. Legal Proceedings The Company is subject to legal proceedings, claims and litigation arising in the ordinary course of business. While the outcome of these matters is currently not determinable, management does not expect that the ultimate costs to resolve these matters will have a material adverse effect on the Company’s consolidated financial position, results of operations, or cash flows.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Deferred Taxes - Valuation Allowance	Deferred Taxes – Valuation Allowance Accounting Standards Codification (“ASC”) Topic 740, Income Taxes, provides the carrying value of deferred tax assets should be reduced by the amount not expected to be realized. A company should reduce deferred tax assets by a valuation allowance if, based on the weight of all available evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. The valuation allowance should be sufficient to reduce the deferred tax asset to the amount that is more likely than not to be realized. ASC 740 requires all available evidence, both positive and negative, be considered to determine whether a valuation allowance for deferred tax assets is needed in the financial statements. Additionally there can be statutory limitations on the deferred tax assets should certain conditions arise.
Restricted Cash	Restricted Cash A portion of the Company’s cash balance is restricted to its use in order to provide collateral, primarily relating to letters of credit and corporate credit cards. As of June 30, 2018 and December 31, 2017, total restricted cash was $9,265 and $10,216, respectively.
Lower of Cost and Net Realizable Value Adjustments	Lower of Cost and Net Realizable Value Adjustments As of June 30, 2018, the Company reviewed the carrying values of all inventories and concluded that no adjustments were warranted for finished goods and raw materials intended for use in the Company’s manufacturing process.
Manufacturing Production Levels Below Normal Capacity	Manufacturing Production Levels Below Normal Capacity As a result of the Company substantially reducing manufacturing production levels, including by idling certain facilities, certain production costs have been expensed instead of being capitalized into inventory. The Company expenses fixed production overhead amounts in excess of amounts that would have been allocated to each unit of production at normal production levels. For the three months ended June 30, 2018 and 2017, the Company expensed $6,834 and $10,797, respectively, in production costs. For the six months ended June 30, 2018 and 2017, the Company expensed $16,557 and $22,009, respectively, in production costs.
Long-lived and other noncurrent assets impairment	Long-lived and other noncurrent assets impairment The Company has temporarily idled production at various manufacturing facilities. The Company does not assess temporarily idled assets for impairment unless events or circumstances indicate that the carrying amounts of those assets may not be recoverable. Short-term stoppages of production for less than one year do not generally significantly impact the long-term expected cash flows of the idled facility. As of June 30, 2018, the Company concluded that there were no events or circumstances that would indicate that carrying amounts of long-lived and other noncurrent assets might be impaired. However, the Company continues to monitor market conditions closely. Further deterioration of market conditions could result in impairment charges being taken on the Company’s long-lived and other noncurrent assets, including the Company’s manufacturing plants, goodwill and intangible assets. The Company will evaluate long-lived and other noncurrent assets for impairment at such time that events or circumstances indicate that carrying amounts might be impaired.
Reclassification of Prior Period Amounts	Reclassification of prior period amounts Certain prior period financial information has been reclassified to conform to current period presentation.

Loss Per Share (Tables)

Loss Per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Computation of Basic and Diluted Loss per Share under Two-Class Method	The following table sets forth the computation of basic and diluted loss per share under the two-class method: Three months ended Six months ended June 30, June 30, 2018 2017 2018 2017 Numerator for basic and diluted loss per share: Net loss $ (14,812 ) $ (24,822 ) $ (37,084 ) $ (57,266 ) Effect of reallocating undistributed earnings of participating securities — — — — Net loss available under the two-class method $ (14,812 ) $ (24,822 ) $ (37,084 ) $ (57,266 ) Denominator: Denominator for basic loss per share--weighted-average shares 26,930,914 26,665,092 26,860,146 26,636,394 Effect of dilutive potential common shares — — — — Denominator for diluted loss per share--adjusted weighted-average shares 26,930,914 26,665,092 26,860,146 26,636,394 Basic loss per share $ (0.55 ) $ (0.93 ) $ (1.38 ) $ (2.15 ) Diluted loss per share $ (0.55 ) $ (0.93 ) $ (1.38 ) $ (2.15 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements of Financial Assets and Liabilities on Recurring and Non Recurring Basis	The following table sets forth by level within the fair value hierarchy the Company’s assets and liabilities that were accounted for at fair value: Fair value as of June 30, 2018 Level 1 Level 2 Level 3 Total Liabilities: Derivative instruments — (1,189 ) — (1,189 ) Total fair value $ — $ (1,189 ) $ — $ (1,189 ) Fair value as of December 31, 2017 Level 1 Level 2 Level 3 Total Liabilities: Derivative instruments — (2,537 ) — (2,537 ) Total fair value $ — $ (2,537 ) $ — $ (2,537 )

Stock Based Compensation (Table

Stock Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Restricted Stock Activity and Related Information	A summary of restricted stock activity and related information for the six months ended June 30, 2018 is presented below: Shares Weighted-Average Grant-Date Fair Value Per Share Nonvested at January 1, 2018 441,119 $ 14.87 Granted 334,638 $ 12.16 Vested (200,394 ) $ 18.20 Forfeited (1,152 ) $ 12.06 Nonvested at June 30, 2018 574,211 $ 12.13

Disaggregated Revenue (Tables)

Disaggregated Revenue (Tables)	6 Months Ended
	Jun. 30, 2018
Disaggregation Of Revenue [Abstract]
Schedule of Disaggregates Revenue by Product Line	The following table disaggregates our revenue by product line for the three and six months ended June 30, 2018 and 2017: Three Months Ended Six Months Ended June 30, June 30, 2018 2017 2018 2017 Technology products and services $ 12,786 $ 8,526 $ 22,656 $ 17,730 Industrial products and services 3,269 2,552 6,562 4,418 Base ceramic and sand proppants 33,733 26,124 63,038 44,675 Oilfield and Industrial technologies and services segment 49,788 37,202 92,256 66,823 Environmental technologies and services segment 8,201 6,370 15,100 11,419 $ 57,989 $ 43,572 $ 107,356 $ 78,242

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of Financial Information for Operating Segments	Summarized financial information for the Company’s operating segments for the three and six months ended June 30, 2018 and 2017 is shown in the following tables. Intersegment sales are not material. Oilfield and Industrial Technologies and Services Environmental Technologies and Services Total Three Months Ended June 30, 2018 Revenue from external customers $ 49,788 $ 8,201 $ 57,989 (Loss) income before income taxes (15,545 ) 740 (14,805 ) Depreciation and amortization 8,647 297 8,944 Three Months Ended June 30, 2017 Revenue from external customers $ 37,202 $ 6,370 $ 43,572 (Loss) income before income taxes (25,436 ) 115 (25,321 ) Depreciation and amortization 11,178 331 11,509 Six Months Ended June 30, 2018 Revenue from external customers $ 92,256 $ 15,100 $ 107,356 (Loss) income before income taxes (38,312 ) 1,235 (37,077 ) Depreciation and amortization 17,383 586 17,969 Six Months Ended June 30, 2017 Revenue from external customers $ 66,823 $ 11,419 $ 78,242 Loss before income taxes (57,199 ) (278 ) (57,477 ) Depreciation and amortization 22,724 667 23,391

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Significant Accounting Policies [Line Items]
Estimate of projects completed percentage				95.00%
Loss related to settlement		$ 350,000	$ 0	$ 350,000	$ 0
Deferred tax assets, valuation allowance		63,188,000		63,188,000
Change in provisional amount of net deferred tax assets, previously recorded				0
Total restricted cash		9,265,000		9,265,000		$ 10,216,000
Lower of cost or market inventory adjustment				0
Production cost		6,834,000	$ 10,797,000	16,557,000	$ 22,009,000
Russian Proppant
Significant Accounting Policies [Line Items]
Dispute settlement, expense		3,650,000
Loss related to settlement		350,000
Russian Proppant | Subsequent Event
Significant Accounting Policies [Line Items]
Proceeds from settlement	$ 3,650,000
Share Purchase Agreement | Russian Proppant
Significant Accounting Policies [Line Items]
Additional proceeds on the sale related to net debt and net working capital purchase price adjustments		$ 4,000,000
Millen, Georgia
Significant Accounting Policies [Line Items]
Carrying value of second line facility				$ 6,753,000
Eufaula and Alabama
Significant Accounting Policies [Line Items]
Percentage of suspended projects relating to assets				66.00%

Computation of Basic and Dilute

Computation of Basic and Diluted Loss per Share under Two-Class Method (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator for basic and diluted loss per share:
Net loss	$ (14,812)	$ (24,822)	$ (37,084)	$ (57,266)
Effect of reallocating undistributed earnings of participating securities	0	0	0	0
Net loss available under the two-class method	$ (14,812)	$ (24,822)	$ (37,084)	$ (57,266)
Denominator:
Denominator for basic loss per share--weighted-average shares	26,930,914	26,665,092	26,860,146	26,636,394
Effect of dilutive potential common shares	0	0	0	0
Denominator for diluted loss per share--adjusted weighted-average shares	26,930,914	26,665,092	26,860,146	26,636,394
Basic loss per share	$ (0.55)	$ (0.93)	$ (1.38)	$ (2.15)
Diluted loss per share	$ (0.55)	$ (0.93)	$ (1.38)	$ (2.15)

Natural Gas Derivative Instru26

Natural Gas Derivative Instruments - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)$ / MMBTU	Jun. 30, 2017USD ($)$ / MMBTU	Jun. 30, 2018USD ($)MMBTU$ / MMBTU	Jun. 30, 2017USD ($)$ / MMBTU
Natural gas derivative contract
Derivative [Line Items]
Last derivative contract expiration month and year			2018-12
Contracts volume, derivative instruments | MMBTU			900,000
Average price | $ / MMBTU	2.80	3.18	2.80	3.18
Natural gas derivative contract | 2015 through December 31, 2018
Derivative [Line Items]
Contracts volume, derivative instruments | MMBTU			960,000
Average price | $ / MMBTU	4.31		4.31
Natural gas derivative contract | Measurement Input, Discount Rate
Derivative [Line Items]
Estimated cash flows, discount rate	8		8
Cost of Sales
Derivative [Line Items]
Gain (loss) on derivative instruments | $	$ 412	$ (309)	$ 630	$ (1,200)

Fair Value Measurements of Fina

Fair Value Measurements of Financial Assets and Liabilities on Recurring and Non Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Liabilities:
Derivative instruments	$ (1,189)	$ (2,537)
Total fair value	(1,189)	(2,537)
Fair Value, Inputs, Level 2
Liabilities:
Derivative instruments	(1,189)	(2,537)
Total fair value	$ (1,189)	$ (2,537)

Stock Based Compensation - Addi

Stock Based Compensation - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)shares
Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Amended and Restated 2014 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance under the plan | shares	449,232
Amended and Restated 2014 Omnibus Incentive Plan | Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash awards	$ 3,210
Vesting period	3 years
Deferred compensation paid relating to 2015 grant	$ 526
Deferred compensation, percentage	76.00%
Amended and Restated 2014 Omnibus Incentive Plan | Executive Officer | Beginning January 1, 2015 through December 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	200.00%
Amended and Restated 2014 Omnibus Incentive Plan | Executive Officer | Beginning January 1, 2015 through December 31, 2017 | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	0.00%
Amended and Restated 2014 Omnibus Incentive Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense, net	$ 5,515
Unrecognized compensation expense, net, weighted average period	2 years 1 month 6 days
Total fair value of restricted stock vested	$ 1,567
Amended and Restated 2014 Omnibus Incentive Plan | Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Units granted | shares	214,616
Units vested | shares	54,020
Units forfeited | shares	12,950
Total fair value of units outstanding	$ 1,354

Stock Based Compensation - Summ

Stock Based Compensation - Summary of Restricted Stock Activity and Related Information (Detail) - Restricted Stock Units (RSUs)	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Shares
Beginning Balance | shares	441,119
Granted | shares	334,638
Vested | shares	(200,394)
Forfeited | shares	(1,152)
Ending Balance | shares	574,211
Weighted-Average Grant-Date Fair Value Per Share
Beginning Balance | $ / shares	$ 14.87
Granted | $ / shares	12.16
Vested | $ / shares	18.20
Forfeited | $ / shares	12.06
Ending Balance | $ / shares	$ 12.13

Long-Term Debt and Notes Paya30

Long-Term Debt and Notes Payable - Additional Information (Detail) $ / shares in Units, $ in Thousands	Mar. 02, 2017USD ($)Subsidiary$ / sharesshares	May 31, 2016USD ($)BoardofDirector	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)	Jul. 26, 2018USD ($)
Line of Credit Facility [Line Items]
Long-term debt			$ 61,039		$ 60,698
PIK interest payments			0	$ 997
Interest expense			4,137	$ 3,965
Unsecured Promissory Notes
Line of Credit Facility [Line Items]
Debt instrument, maturity date		Apr. 1, 2019
Debt instrument, interest rate		7.00%
Proceeds from issuance of notes		$ 25,000
Debt instrument, payable number | BoardofDirector		2
PIK interest payments					2,040
Subsequent Event | Unsecured Promissory Notes
Line of Credit Facility [Line Items]
Notes outstanding principal balance						$ 27,040
New Credit Agreement
Line of Credit Facility [Line Items]
Long-term debt			$ 65,000
New Credit Agreement | Unsecured Promissory Notes
Line of Credit Facility [Line Items]
Debt instrument, payment-in-kind interest rate	8.00%
Debt instrument, payment terms			Interest payments at 8.00% until the lenders under the New Credit Agreement receive two consecutive semi-annual cash interest payments.
Debt instrument, frequency of periodic payment			Semi-annual
Wilks | New Credit Agreement
Line of Credit Facility [Line Items]
Long-term debt	$ 65,000
Debt instrument, maturity date			Dec. 31, 2022
Debt instrument, interest rate	9.00%
Number of operating subsidiaries | Subsidiary	2
Period for payment of Interest on loan in kind	2 years
Debt instrument, payment-in-kind interest rate	11.00%
Notice of intent, period required to provide to exercise available option for interest payment	30 days
Unamortized debt issuance costs			$ 768
Warrants exercise price per share | $ / shares	$ 14.91
Warrants expiration date	Dec. 31, 2022
Percentage of common stock outstanding owned			11.20%
Percentage of common stock outstanding would hold upon exercise of warrant to purchase additional shares			13.10%
Increase in additional paid-in capital due to issuance of warrant			$ 3,871
Wilks | New Credit Agreement | Maximum
Line of Credit Facility [Line Items]
Warrant entitles to purchase shares of the common stock | shares	523,022
Wilks | New Credit Agreement | Warrant
Line of Credit Facility [Line Items]
Unamortized original issue discount			3,193
Wells Fargo | Amended Credit Agreement | Standby Letters of Credit
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity			$ 7,775		$ 9,230

Equity Offering - Additional In

Equity Offering - Additional Information (Detail) - ATM Program - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Jul. 28, 2016
Stockholders Equity Note [Line Items]
Proceeds from sale of common stock under ATM program		$ 2,849,000	$ 0
Cowen and Company LLC
Stockholders Equity Note [Line Items]
Aggregate offering price authorized				$ 75,000,000
Proceeds from sale of common stock under ATM program gross	$ 2,914,000	49,527,000
Proceeds from sale of common stock under ATM program	2,849,000	48,412,000
Commissions paid	$ 65,000	$ 1,114,000
Common Stock | Cowen and Company LLC
Stockholders Equity Note [Line Items]
Shares sold under ATM program	300,227	3,705,936
Average price per share	$ 9.71	$ 13.36

Disaggregated Revenue - Schedul

Disaggregated Revenue - Schedule of Disaggregates Revenue by Product Line (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation Of Revenue [Line Items]
Revenue by product line	$ 57,989	$ 43,572	$ 107,356	$ 78,242
Environmental Technologies and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line	8,201	6,370	15,100	11,419
Oilfield and Industrial Technologies and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line	49,788	37,202	92,256	66,823
Oilfield and Industrial Technologies and Services | Technology Products and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line	12,786	8,526	22,656	17,730
Oilfield and Industrial Technologies and Services | Industrial Products and Services
Disaggregation Of Revenue [Line Items]
Revenue by product line	3,269	2,552	6,562	4,418
Oilfield and Industrial Technologies and Services | Base Ceramic and Sand Proppants
Disaggregation Of Revenue [Line Items]
Revenue by product line	$ 33,733	$ 26,124	$ 63,038	$ 44,675

Segment Information - Additiona

Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018Segment
Segment Reporting [Abstract]
Number of operating segments	2

Schedule of Financial Informati

Schedule of Financial Information for Operating Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Revenue from external customers	$ 57,989	$ 43,572	$ 107,356	$ 78,242
(Loss) income before income taxes	(14,805)	(25,321)	(37,077)	(57,477)
Depreciation and amortization	8,944	11,509	17,969	23,391
Oilfield and Industrial Technologies and Services
Segment Reporting Information [Line Items]
Revenue from external customers	49,788	37,202	92,256	66,823
Operating Segment | Oilfield and Industrial Technologies and Services
Segment Reporting Information [Line Items]
Revenue from external customers	49,788	37,202	92,256	66,823
(Loss) income before income taxes	(15,545)	(25,436)	(38,312)	(57,199)
Depreciation and amortization	8,647	11,178	17,383	22,724
Operating Segment | Environmental Technologies and Services
Segment Reporting Information [Line Items]
Revenue from external customers	8,201	6,370	15,100	11,419
(Loss) income before income taxes	740	115	1,235	(278)
Depreciation and amortization	$ 297	$ 331	$ 586	$ 667