Quest Resource Holding (QRHC) 10-Q 14 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 01, 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	QRHC
Entity Registrant Name	Quest Resource Holding Corporation
Entity Central Index Key	1,442,236
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		15,313,383

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 1,080,988	$ 1,055,281
Accounts receivable, less allowance for doubtful accounts of $562,280 and $699,102 as of June 30, 2018 and December 31, 2017, respectively	17,877,746	16,263,276
Prepaid expenses and other current assets	1,788,334	1,508,014
Total current assets	20,747,068	18,826,571
Goodwill	58,208,490	58,337,290
Intangible assets, net	3,166,483	5,031,595
Property and equipment, net, and other assets	1,146,032	1,320,342
Total assets	83,268,073	83,515,798
Current liabilities:
Accounts payable and accrued liabilities	17,493,790	14,253,818
Deferred revenue and other current liabilities	125,933	328,763
Total current liabilities	17,619,723	14,582,581
Revolving credit facility, net	4,924,412	6,763,497
Other long-term liabilities	2,158	21,990
Total liabilities	22,546,293	21,368,068
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 10,000,000 shares authorized, no shares issued or outstanding as of June 30, 2018 and December 31, 2017
Common stock, $0.001 par value, 200,000,000 shares authorized, 15,313,383 and 15,302,455 shares issued and outstanding as of June 30, 2018 and December 31, 2017, respectively	15,313	15,302
Additional paid-in capital	159,292,700	158,867,600
Accumulated deficit	(98,586,233)	(96,735,172)
Total stockholders’ equity	60,721,780	62,147,730
Total liabilities and stockholders’ equity	$ 83,268,073	$ 83,515,798

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (Unaudited) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 562,280	$ 699,102
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	15,313,383	15,302,455
Common stock, shares outstanding	15,313,383	15,302,455

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenue	$ 27,928,626	$ 41,370,594	$ 52,624,549	$ 83,910,416
Cost of revenue	23,500,848	36,922,533	44,648,944	75,276,603
Gross profit	4,427,778	4,448,061	7,975,605	8,633,813
Operating expenses:
Selling, general, and administrative	3,879,280	4,581,897	7,631,040	9,561,992
Depreciation and amortization	981,610	996,326	1,966,191	1,997,060
Total operating expenses	4,860,890	5,578,223	9,597,231	11,559,052
Operating loss	(433,112)	(1,130,162)	(1,621,626)	(2,925,239)
Other expense:
Interest expense	(105,430)	(120,491)	(229,435)	(234,766)
Total other expense	(105,430)	(120,491)	(229,435)	(234,766)
Loss before taxes	(538,542)	(1,250,653)	(1,851,061)	(3,160,005)
Net loss	(538,542)	(1,250,653)	(1,851,061)	(3,160,005)
Net loss applicable to common stockholders	$ (538,542)	$ (1,250,653)	$ (1,851,061)	$ (3,160,005)
Net loss per share
Basic and diluted	$ (0.04)	$ (0.08)	$ (0.12)	$ (0.21)
Weighted average number of common shares outstanding
Basic and diluted	15,307,859	15,276,228	15,305,172	15,274,412

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - 6 months ended Jun. 30, 2018 - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2017	$ 62,147,730	$ 15,302	$ 158,867,600	$ (96,735,172)
Beginning Balance, Shares at Dec. 31, 2017		15,302,455
Stock-based compensation	406,715		406,715
Shares issued for Employee Stock Purchase Plan options, Value	18,396	$ 11	18,385
Shares issued for Employee Stock Purchase Plan options, Shares		10,928
Net loss	(1,851,061)			(1,851,061)
Ending Balance at Jun. 30, 2018	$ 60,721,780	$ 15,313	$ 159,292,700	$ (98,586,233)
Ending Balance, Shares at Jun. 30, 2018		15,313,383

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net loss	$ (1,851,061)	$ (3,160,005)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation	203,972	228,690
Amortization of intangibles	1,853,217	1,851,669
Amortization of debt issuance costs	46,951	31,300
Provision for doubtful accounts	159,915	418,939
Stock-based compensation	406,715	1,183,720
Changes in operating assets and liabilities:
Accounts receivable	(1,774,385)	4,323,184
Prepaid expenses and other current assets	(280,320)	(210,701)
Security deposits and other assets	259,210	365,839
Accounts payable and accrued liabilities	3,239,972	(5,905,408)
Deferred revenue and other liabilities	(196,544)	(9,044)
Net cash provided by (used in) operating activities	2,067,642	(881,817)
Cash flows from investing activities:
Purchase of property and equipment	(42,287)	(35,929)
Purchase of capitalized software development	(105,890)	(161,761)
Net cash used in investing activities	(148,177)	(197,690)
Cash flows from financing activities:
Proceeds from credit facilities	48,875,349	38,990,201
Repayments of credit facilities	(50,761,385)	(37,582,164)
Debt issuance costs		(234,334)
Proceeds from shares issued for Employee Stock Purchase Plan	18,396	11,972
Repayments of capital lease obligations	(26,118)	(35,617)
Net cash provided by (used in) financing activities	(1,893,758)	1,150,058
Net increase in cash and cash equivalents	25,707	70,551
Cash and cash equivalents at beginning of period	1,055,281	1,328,174
Cash and cash equivalents at end of period	1,080,988	1,398,725
Supplemental cash flow information:
Cash paid for interest	224,486	155,194
Supplemental non-cash activities:
Sale of goodwill and intangible assets	246,585
Investment in Earth Media Partners, LLC	(246,585)
Repayment of Regions line of credit		(9,250,000)
ABL Facility [Member]
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Amortization of debt issuance costs	$ 46,951
Supplemental non-cash activities:
Draw on Citizens ABL facility		9,250,000
Draw on Citizens ABL facility for repayment of capital lease obligation		212,609
Debt issuance costs financed with Citizens ABL facility		$ 235,173

The Company, Description of Bus

The Company, Description of Business, and Liquidity	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
The Company, Description of Business, and Liquidity	1. The Company, Description of Business, and Liquidity The accompanying condensed consolidated financial statements include the accounts of Quest Resource Holding Corporation (“QRHC”) and its subsidiaries, Quest Resource Management Group, LLC (“Quest”), Landfill Diversion Innovations, LLC (“LDI”), Youchange, Inc. (“Youchange”), Quest Vertigent Corporation (“QVC”), Quest Vertigent One, LLC (“QV One”), and Quest Sustainability Services, Inc. (“QSS”) (collectively, “we,” “us,” “our,” or “our company”). Operations – We are a national provider of reuse, recycling, and disposal services that enable our customers to achieve and satisfy their environmental and sustainability goals and responsibilities. We provide businesses across multiple industry sectors with single source solutions for the reuse, recycling, and disposal of a wide variety of waste streams and recyclables generated by their operations. Liquidity – As of June 30, 2018 and December 31, 2017, our working capital balance was $3,127,345 and $4,243,990, respectively.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Principles of Presentation and Consolidation The condensed consolidated financial statements included herein have been prepared by us without audit pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and should be read in conjunction with our audited financial statements for the year ended December 31, 2017. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted as permitted by the SEC, although we believe the disclosures that are made are adequate to make the information presented herein not misleading. The accompanying condensed consolidated financial statements reflect, in our opinion, all normal recurring adjustments necessary to present fairly our financial position at June 30, 2018 and the results of our operations and cash flows for the periods presented. We derived the December 31, 2017 condensed consolidated balance sheet data from audited financial statements; however, we did not include all disclosures required by GAAP. As QRHC, Quest, LDI, Youchange, QVC, QV One, and QSS each operate as environmental-based service companies, we did not deem segment reporting necessary. All intercompany accounts and transactions have been eliminated in consolidation. Interim results are subject to seasonal variations, and the results of operations for the six months ended June 30, 2018 are not necessarily indicative of the results to be expected for the full year. Net Loss Per Share We compute basic net loss per share by dividing net loss applicable to common stockholders by the weighted average number of shares of common stock outstanding during the period. We have other potentially dilutive securities outstanding that are not shown in a diluted net loss per share calculation because their effect in both 2018 and 2017 would be anti-dilutive. These potentially dilutive securities include stock options and warrants and totaled 3,487,381 and 3,095,132 shares at June 30, 2018 and 2017, respectively. The following table sets forth the anti-dilutive securities excluded from diluted loss per share: June 30, 2018 2017 (Unaudited) (Unaudited) Anti-dilutive securities excluded from diluted loss per share: Stock options 1,753,816 1,361,567 Warrants 1,733,565 1,733,565 Total anti-dilutive securities excluded from diluted loss per share 3,487,381 3,095,132 Recent Accounting Pronouncements Adopted In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606) Pending Adoption In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326) There have been no other recent accounting pronouncements or changes in accounting pronouncements that have been issued but not yet adopted that are of significance, or potential significance, to us.

Property and Equipment, Net, an

Property and Equipment, Net, and Other Assets	6 Months Ended
	Jun. 30, 2018
Property Plant And Equipment [Abstract]
Property and Equipment, Net, and Other Assets	3. Property and Equipment, net, and Other Assets At June 30, 2018 and December 31, 2017, property and equipment, net, and other assets consisted of the following: June 30, December 31, 2018 2017 (Unaudited) Property and equipment, net of accumulated depreciation of $2,396,516 and $2,193,231 as of June 30, 2018 and December 31, 2017, respectively $ 795,182 $ 956,867 Security deposits and other assets 350,850 363,475 Property and equipment, net, and other assets $ 1,146,032 $ 1,320,342 We compute depreciation using the straight-line method over the estimated useful lives of the property and equipment. Depreciation expense for the three months ended June 30, 2018 was $100,662, inclusive of $45,702 of depreciation expense reflected within “Cost of revenue” in our condensed consolidated statement of operations as it related to assets used in directly servicing customer contracts, and was $203,972 for the six months ended June 30, 2018, inclusive of $90,998 of depreciation expense reflected within “Cost of revenue.” Depreciation expense for the three months ended June 30, 2017 was $113,444, inclusive of $42,224 of depreciation expense reflected within “Cost of revenue,” and was $228,690 for the six months ended June 30, 2017, inclusive of $83,299 of depreciation expense reflected within “Cost of revenue.” At June 30, 2018, the carrying value of our capital lease assets was $191,680, net of $308,417 of accumulated depreciation. At December 31, 2017, the carrying value of our capital lease assets was $243,778, net of $256,319 of accumulated depreciation. On February 20, 2018 (the “Closing Date”), we entered into an Asset Purchase Agreement with Earth Media Partners, LLC to sell certain assets of our wholly owned subsidiary, Earth911, Inc., in exchange for a 19% interest in Earth Media Partners, LLC, which was recorded as an investment in the amount of $246,585 as of the Closing Date, and a potential future earn-out amount of approximately $350,000. The net assets sold related to the Earth911.com website business and consisted primarily of the website and its content and customers, deferred revenues, and accounts receivable as of the Closing Date. Following the Closing Date, Earth911, Inc. was subsequently renamed Quest Sustainability Services, Inc. In addition to our investment in Earth Media Partners, LLC, we accrued a receivable in the amount of $22,155 related to the earn-out as of June 30, 2018. The carrying amount of our investment and the accrued earn-out receivable are included in other assets.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	4. Goodwill and Other Intangible Assets The components of goodwill and other intangible assets were as follows: June 30, 2018 (Unaudited) Estimated Useful Life Gross Carrying Amount Accumulated Amortization Net Finite lived intangible assets: Customer relationships 5 years $ 12,720,000 $ 12,614,000 $ 106,000 Trademarks 7 years 6,242,055 4,414,941 1,827,114 Patents 7 years 230,683 230,683 — Software 7 years 1,836,751 613,382 1,223,369 Customer lists 5 years 307,153 297,153 10,000 Total finite lived intangible assets $ 21,336,642 $ 18,170,159 $ 3,166,483 December 31, 2017 Estimated Useful Life Gross Carrying Amount Accumulated Amortization Net Finite lived intangible assets: Customer relationships 5 years $ 12,720,000 $ 11,342,000 $ 1,378,000 Trademarks 7 years 6,242,055 3,969,576 2,272,479 Patents 7 years 230,683 230,683 — Software 7 years 1,904,279 548,163 1,356,116 Customer lists 5 years 307,153 282,153 25,000 Total finite lived intangible assets $ 21,404,170 $ 16,372,575 $ 5,031,595 Carrying Amount Changes in goodwill: Goodwill balance at December 31, 2017 $ 58,337,290 Adjustment related to Earth911, Inc. asset sale (128,800 ) Goodwill balance at June 30, 2018 $ 58,208,490 We compute amortization using the straight-line method over the estimated useful lives of the finite lived intangible assets. Amortization expense related to finite lived intangible assets was $926,650 and $925,106 for the three months ended June 30, 2018 and 2017, respectively. Amortization expense related to finite lived intangible assets was $1,853,217 and $1,851,669 for the six months ended June 30, 2018 and 2017, respectively. We have no indefinite-lived intangible assets other than goodwill. The goodwill is not deductible for tax purposes. See Note 3 for discussion of sale of certain assets related to Earth911, Inc. We performed our annual impairment analysis for goodwill and other intangible assets in the second quarter of 2017 with no impairment recorded.

Accounts Payable and Accrued Li

Accounts Payable and Accrued Liabilities	6 Months Ended
	Jun. 30, 2018
Accounts Payable And Accrued Liabilities Current [Abstract]
Accounts Payable and Accrued Liabilities	5. Accounts Payable and Accrued Liabilities The components of Accounts payable and accrued liabilities were as follows: June 30, December 31, 2018 2017 (Unaudited) Accounts payable $ 15,903,734 $ 12,739,117 Accrued taxes 588,901 807,037 Employee compensation 622,011 434,358 Other 379,144 273,306 $ 17,493,790 $ 14,253,818

Revolving Credit Facility

Revolving Credit Facility	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Revolving Credit Facility	6. Revolving Credit Facility We entered into a Loan, Security and Guaranty Agreement (the “Citizens Loan Agreement”), dated as of February 24, 2017, with Citizens Bank, National Association as a lender, and as administrative agent, collateral agent, and issuing bank, which provides for an asset-based revolving credit facility (the “ABL Facility”) of up to $20 million and an equipment loan facility in the maximum principal amount of $2.0 million. Each loan under the ABL Facility bears interest, at our option, at either the Base Rate, as defined in the Citizens Loan Agreement, plus a margin ranging from 1.0% to 1.5% (6.25% as of June 30, 2018), or the LIBOR lending rate for the interest period in effect, plus a margin ranging from 2.0% to 2.5% (4.59% as of June 30, 2018). The maturity date of the ABL Facility is February 24, 2022. Loans under the equipment loan facility may be requested at any time until February 24, 2019. Each loan under the equipment loan facility bears interest, at our option, at either the Base Rate, as defined in the Citizens Loan Agreement, plus 2.00%, or the LIBOR lending rate for the interest period in effect, plus 3.00%. The maturity date of the equipment loan facility is February 24, 2022. The ABL Facility contains certain specific financial covenants regarding a minimum liquidity requirement and a minimum fixed charge coverage ratio. In addition, the ABL Facility contains negative covenants limiting, among other things, additional indebtedness, transactions with affiliates, additional liens, sales of assets, dividends, investments and advances, mergers and acquisitions, and other matters customarily restricted in such agreements. The amount of interest expense related to borrowings for the three months ended June 30, 2018 and 2017 was $81,140 and $87,435, respectively. The amount of interest expense related to borrowings for the six months ended June 30, 2018 and 2017 was $165,428 and $197,359, respectively. Debt issuance cost of $469,507 is being amortized to interest expense over the life of the ABL Facility beginning March 1, 2017. As of June 30, 2018, the unamortized portion of the debt issuance costs was $344,306. The amount of interest expense related to the amortization of the discount on the ABL Facility for was $46,951.

Capital Lease Obligations

Capital Lease Obligations	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Capital Lease Obligations	7. Capital Lease Obligations At June 30, 2018 and December 31, 2017, total capital lease obligations outstanding consisted of the following: June 30, December 31, 2018 2017 (Unaudited) Capital lease obligations, imputed interest at 4.88% to 13.29%, with monthly payments of approximately $6,000, expiring through September 2019, secured by computer and office equipment $ 15,547 $ 41,664 Total 15,547 41,664 Less: current maturities (15,030 ) (39,067 ) Long-term portion $ 517 $ 2,597 Our capital lease obligations are included within “Deferred revenue and other current liabilities” and “Other long-term liabilities” in our condensed consolidated balance sheets. The amount of interest expense related to our capital leases for the three months ended June 30, 2018 and 2017 was $425 and $1,636, respectively. The amount of interest expense related to our capital leases for the six months ended June 30, 2018 and 2017 was $1,043 and $4,098, respectively.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2018
Revenue From Contract With Customer [Abstract]
Revenue	8. Revenue Operating Revenues We provide businesses with services to reuse, recycle, and dispose of a wide variety of waste streams and recyclables generated by their operations. In addition, we have product sales and other revenue primarily from sales of products such as antifreeze and windshield washer fluid as well as minor ancillary services. Revenue Recognition We recognize revenue as services are performed or products are delivered. For example, revenue is recognized as waste and recyclable material are collected or when products are delivered. We recognize revenue net of any contracted pricing discounts or rebate arrangements. We generally recognize revenues for the gross amount of consideration received as we are generally the primary obligor (or principal) in our contracts with customers as we hold complete responsibility to the customer for contract fulfillment. We record amounts collected from customers for sales tax on a net basis. We previously had a contract accounted for as a net basis management fee contract, with revenue of $34,057 and gross billings of $878,563 for the three months ended June 30, 2017 and revenue of $78,145 and gross billings of $2,173,022 for the six months ended June 30, 2017. This management fee contract ended in the second quarter of 2017, and we currently have no other net basis contracts. Disaggregation of Revenue The following table presents our revenue disaggregated by source. Sales and usage-based taxes are excluded from revenue. Three customers accounted for 53.0% of revenue for the three months ended June 30, 2018, and two customers accounted for 51.8% of revenue for the three months ended June 30, 2017. Three customers accounted for 50.8% of revenue for the six months ended June 30, 2018, and two customers accounted for 53.5% of revenue for the six months ended June 30, 2017. We operate primarily in the United States, with minor services in Canada. Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 (Unaudited) (Unaudited) (Unaudited) (Unaudited) Revenue Type: Services $ 25,324,837 $ 38,080,577 $ 47,330,409 $ 77,916,252 Product sales and other 2,603,789 3,290,017 5,294,140 5,994,164 Total revenue $ 27,928,626 $ 41,370,594 $ 52,624,549 $ 83,910,416 Contract Balances Our incremental direct costs of obtaining a customer contract are generally deferred and amortized to selling, general, and administrative expense or as a reduction to revenue (depending on the nature of the cost) over the estimated life of the customer contract. Our contract acquisition costs are classified as current or noncurrent based on the timing of when we expect to recognize the amortization and are included in other assets. As of June 30, 2018 and December 31, 2017, we had $111,250 and $136,139, respectively, of deferred contract costs. During the three months ended June 30, 2018, we amortized $70,417 and $18,070 of deferred contract costs to selling, general, and administrative expense and as a reduction to income, respectively. During the six months ended June 30, 2018, we amortized $103,750 and $36,139 of deferred contract costs to selling, general, and administrative expense and as a reduction to income, respectively. During the three months ended June 30, 2017, we amortized $10,000 and $18,070 of deferred contract costs to selling, general, and administrative expense and as a reduction to income, respectively. During the six months ended June 30, 2017, we amortized $110,000 and $36,139 of deferred contract costs to selling, general, and administrative expense and as a reduction to income, respectively. Certain customers are billed in advance, and, accordingly, recognition of related revenues is deferred as a contract liability until the services are provided and control transferred to the customer. As of June 30, 2018 and December 31, 2017, we had $112,544 and $309,089, respectively, of deferred revenue, the majority of which was classified in “Deferred revenue and other current liabilities.”

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	9. Income Taxes We compute income taxes using the asset and liability method in accordance with FASB ASC Topic 740, Income Taxes On December 22, 2017, The Tax Cuts and Jobs Act (the “2017 Act”) was enacted. The most significant impact to us of the 2017 Act was a decrease in the federal corporate income tax rate from 35% to 21% beginning in 2018.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	10. Fair Value of Financial Instruments Our financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities, deferred revenue, the ABL Facility, and capital lease obligations. We do not believe that we are exposed to significant interest, currency, or credit risks arising from these financial instruments. The fair values of these financial instruments approximate their carrying values using Level 3 inputs, based on their short maturities or, for long-term portions of capital lease obligations and the ABL Facility, based on borrowing rates currently available to us for loans with similar terms and maturities.

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Stockholders' Equity	11. Stockholders’ Equity Preferred Stock Our authorized preferred stock consists of 10,000,000 shares of preferred stock with a par value of $0.001, of which no shares have been issued or are outstanding. Common Stock – Our authorized common stock consists of 200,000,000 shares of common stock with a par value of $0.001, of which 15,313,383 and 15,302,455 shares were issued and outstanding as of June 30, 2018 and December 31, 2017, respectively. Employee Stock Purchase Plan – On September 17, 2014, our stockholders approved our 2014 Employee Stock Purchase Plan (“ESPP”). On May 16, 2018, we issued 10,928 shares to employees for $18,396 under our ESPP for options that vested and were exercised. We recorded expense of $5,262 and $8,990 related to the ESPP during the six months ended June 30, 2018 and 2017, respectively. Warrants – At June 30, 2018, we had outstanding exercisable warrants to purchase 1,733,565 shares of common stock. The following table summarizes the warrants issued and outstanding as of June 30, 2018: Date of Exercise Shares of Description Issuance Expiration Price Common Stock Exercisable warrants Warrants 09/24/2014 09/24/2019 $ 20.00 1,125,005 Warrants 10/20/2014 10/20/2019 $ 20.00 87,500 Warrants 3/30/2016 03/30/2021 $ 3.88 521,060 Total warrants issued and outstanding 1,733,565 Stock Options – We recorded stock option expense of $401,453 and $337,230 for the six months ended June 30, 2018 and 2017, respectively. The following table summarizes the stock option activity for the six month period ended June 30, 2018: Stock Options Weighted- Exercise Average Number Price Per Exercise Price of Shares Share Per Share Outstanding at December 31, 2017 1,389,816 $1.17 — $26.00 $ 8.39 Granted 400,000 $2.39 — $2.47 $ 2.39 Canceled/Forfeited (36,000 ) $2.39 — $23.20 $ 5.62 Outstanding at June 30, 2018 1,753,816 $1.17 — $26.00 $ 7.08

Summary of Significant Accoun18

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Principles of Presentation and Consolidation	Principles of Presentation and Consolidation The condensed consolidated financial statements included herein have been prepared by us without audit pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and should be read in conjunction with our audited financial statements for the year ended December 31, 2017. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted as permitted by the SEC, although we believe the disclosures that are made are adequate to make the information presented herein not misleading. The accompanying condensed consolidated financial statements reflect, in our opinion, all normal recurring adjustments necessary to present fairly our financial position at June 30, 2018 and the results of our operations and cash flows for the periods presented. We derived the December 31, 2017 condensed consolidated balance sheet data from audited financial statements; however, we did not include all disclosures required by GAAP. As QRHC, Quest, LDI, Youchange, QVC, QV One, and QSS each operate as environmental-based service companies, we did not deem segment reporting necessary. All intercompany accounts and transactions have been eliminated in consolidation. Interim results are subject to seasonal variations, and the results of operations for the six months ended June 30, 2018 are not necessarily indicative of the results to be expected for the full year.
Net Loss Per Share	Net Loss Per Share We compute basic net loss per share by dividing net loss applicable to common stockholders by the weighted average number of shares of common stock outstanding during the period. We have other potentially dilutive securities outstanding that are not shown in a diluted net loss per share calculation because their effect in both 2018 and 2017 would be anti-dilutive. These potentially dilutive securities include stock options and warrants and totaled 3,487,381 and 3,095,132 shares at June 30, 2018 and 2017, respectively. The following table sets forth the anti-dilutive securities excluded from diluted loss per share: June 30, 2018 2017 (Unaudited) (Unaudited) Anti-dilutive securities excluded from diluted loss per share: Stock options 1,753,816 1,361,567 Warrants 1,733,565 1,733,565 Total anti-dilutive securities excluded from diluted loss per share 3,487,381 3,095,132
Recent Accounting Pronouncements	Recent Accounting Pronouncements Adopted In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606) Pending Adoption In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326) There have been no other recent accounting pronouncements or changes in accounting pronouncements that have been issued but not yet adopted that are of significance, or potential significance, to us.

Summary of Significant Accoun19

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Schedule of Anti-dilutive Securities Excluded from Diluted Loss Per Share	The following table sets forth the anti-dilutive securities excluded from diluted loss per share: June 30, 2018 2017 (Unaudited) (Unaudited) Anti-dilutive securities excluded from diluted loss per share: Stock options 1,753,816 1,361,567 Warrants 1,733,565 1,733,565 Total anti-dilutive securities excluded from diluted loss per share 3,487,381 3,095,132

Property and Equipment, Net, 20

Property and Equipment, Net, and Other Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Property Plant And Equipment [Abstract]
Components Property and Equipment, Net, and Other Assets	At June 30, 2018 and December 31, 2017, property and equipment, net, and other assets consisted of the following: June 30, December 31, 2018 2017 (Unaudited) Property and equipment, net of accumulated depreciation of $2,396,516 and $2,193,231 as of June 30, 2018 and December 31, 2017, respectively $ 795,182 $ 956,867 Security deposits and other assets 350,850 363,475 Property and equipment, net, and other assets $ 1,146,032 $ 1,320,342

Goodwill and Other Intangible21

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	The components of goodwill and other intangible assets were as follows: June 30, 2018 (Unaudited) Estimated Useful Life Gross Carrying Amount Accumulated Amortization Net Finite lived intangible assets: Customer relationships 5 years $ 12,720,000 $ 12,614,000 $ 106,000 Trademarks 7 years 6,242,055 4,414,941 1,827,114 Patents 7 years 230,683 230,683 — Software 7 years 1,836,751 613,382 1,223,369 Customer lists 5 years 307,153 297,153 10,000 Total finite lived intangible assets $ 21,336,642 $ 18,170,159 $ 3,166,483 December 31, 2017 Estimated Useful Life Gross Carrying Amount Accumulated Amortization Net Finite lived intangible assets: Customer relationships 5 years $ 12,720,000 $ 11,342,000 $ 1,378,000 Trademarks 7 years 6,242,055 3,969,576 2,272,479 Patents 7 years 230,683 230,683 — Software 7 years 1,904,279 548,163 1,356,116 Customer lists 5 years 307,153 282,153 25,000 Total finite lived intangible assets $ 21,404,170 $ 16,372,575 $ 5,031,595
Schedule of Changes in Goodwill	Carrying Amount Changes in goodwill: Goodwill balance at December 31, 2017 $ 58,337,290 Adjustment related to Earth911, Inc. asset sale (128,800 ) Goodwill balance at June 30, 2018 $ 58,208,490

Accounts Payable and Accrued 22

Accounts Payable and Accrued Liabilities (Tables)	6 Months Ended
	Jun. 30, 2018
Accounts Payable And Accrued Liabilities Current [Abstract]
Components of Accounts Payable and Accrued Liabilities	The components of Accounts payable and accrued liabilities were as follows: June 30, December 31, 2018 2017 (Unaudited) Accounts payable $ 15,903,734 $ 12,739,117 Accrued taxes 588,901 807,037 Employee compensation 622,011 434,358 Other 379,144 273,306 $ 17,493,790 $ 14,253,818

Capital Lease Obligations (Tabl

Capital Lease Obligations (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Summary of Capital Lease Obligations	At June 30, 2018 and December 31, 2017, total capital lease obligations outstanding consisted of the following: June 30, December 31, 2018 2017 (Unaudited) Capital lease obligations, imputed interest at 4.88% to 13.29%, with monthly payments of approximately $6,000, expiring through September 2019, secured by computer and office equipment $ 15,547 $ 41,664 Total 15,547 41,664 Less: current maturities (15,030 ) (39,067 ) Long-term portion $ 517 $ 2,597

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue From Contract With Customer [Abstract]
Summary of Revenue Disaggregated by Source	The following table presents our revenue disaggregated by source. Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 (Unaudited) (Unaudited) (Unaudited) (Unaudited) Revenue Type: Services $ 25,324,837 $ 38,080,577 $ 47,330,409 $ 77,916,252 Product sales and other 2,603,789 3,290,017 5,294,140 5,994,164 Total revenue $ 27,928,626 $ 41,370,594 $ 52,624,549 $ 83,910,416

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Summary of Warrants Issued and Outstanding	The following table summarizes the warrants issued and outstanding as of June 30, 2018: Date of Exercise Shares of Description Issuance Expiration Price Common Stock Exercisable warrants Warrants 09/24/2014 09/24/2019 $ 20.00 1,125,005 Warrants 10/20/2014 10/20/2019 $ 20.00 87,500 Warrants 3/30/2016 03/30/2021 $ 3.88 521,060 Total warrants issued and outstanding 1,733,565
Summary of Stock Option Activity	The following table summarizes the stock option activity for the six month period ended June 30, 2018 Stock Options Weighted- Exercise Average Number Price Per Exercise Price of Shares Share Per Share Outstanding at December 31, 2017 1,389,816 $1.17 — $26.00 $ 8.39 Granted 400,000 $2.39 — $2.47 $ 2.39 Canceled/Forfeited (36,000 ) $2.39 — $23.20 $ 5.62 Outstanding at June 30, 2018 1,753,816 $1.17 — $26.00 $ 7.08

The Company, Description of B26

The Company, Description of Business, and Liquidity - Additional Information (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Risks And Uncertainties [Abstract]
Working Capital	$ 3,127,345	$ 4,243,990

Summary of Significant Accoun27

Summary of Significant Accounting Policies - Additional Information (Detail) - shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Accounting Policies [Abstract]
Potentially dilutive securities include options and warrants	3,487,381	3,095,132

Summary of Significant Accoun28

Summary of Significant Accounting Policies - Schedule of Anti-dilutive Securities Excluded from Diluted Loss Per Share (Detail) - shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted loss per share	3,487,381	3,095,132
Stock options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted loss per share	1,753,816	1,361,567
Warrants [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from diluted loss per share	1,733,565	1,733,565

Property and Equipment, Net, 29

Property and Equipment, Net, and Other Assets - Components of Property and Equipment, Net, and Other Assets (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Property Plant And Equipment [Abstract]
Property and equipment, net of accumulated depreciation of $2,396,516 and $2,193,231 as of June 30, 2018 and December 31, 2017, respectively	$ 795,182	$ 956,867
Security deposits and other assets	350,850	363,475
Property and Equipment net and other assets	$ 1,146,032	$ 1,320,342

Property and Equipment, Net, 30

Property and Equipment, Net, and Other Assets - Components of Property and Equipment, Net, and Other Assets ( Parenthetical) (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Property Plant And Equipment [Abstract]
Accumulated depreciation, Property and equipment	$ 2,396,516	$ 2,193,231

Property and Equipment, Net, 31

Property and Equipment, Net, and Other Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Feb. 20, 2018	Dec. 31, 2017
Property Plant And Equipment [Line Items]
Depreciation	$ 100,662	$ 113,444	$ 203,972	$ 228,690
Carrying value of capital lease assets, net	191,680		191,680			$ 243,778
Capital lease assets, accumulated depreciation	308,417		308,417			$ 256,319
Asset Purchase Agreement [Member] | Earth Media Partners, LLC [Member]
Property Plant And Equipment [Line Items]
Percentage of ownership interest					19.00%
Ownership interest amount recorded as investment					$ 246,585
Accrued earn-out amount	22,155		22,155
Asset Purchase Agreement [Member] | Earth Media Partners, LLC [Member] | Wholly Owned Subsidiary and Earth911, Inc. [Member] | Disposal Group, Not Discontinued Operations [Member]
Property Plant And Equipment [Line Items]
Future earn-out amount					$ 350,000
Service [Member]
Property Plant And Equipment [Line Items]
Depreciation reflected in cost of revenue	$ 45,702	$ 42,224	$ 90,998	$ 83,299

Goodwill and Other Intangible32

Goodwill and Other Intangible Assets - Schedule of Finite-Lived Intangible Assets (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 21,336,642	$ 21,404,170
Accumulated Amortization	18,170,159	16,372,575
Net	$ 3,166,483	$ 5,031,595
Customer relationships [Member]
Finite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years	5 years
Gross Carrying Amount	$ 12,720,000	$ 12,720,000
Accumulated Amortization	12,614,000	11,342,000
Net	$ 106,000	$ 1,378,000
Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Estimated Useful Life	7 years	7 years
Gross Carrying Amount	$ 6,242,055	$ 6,242,055
Accumulated Amortization	4,414,941	3,969,576
Net	$ 1,827,114	$ 2,272,479
Patents [Member]
Finite Lived Intangible Assets [Line Items]
Estimated Useful Life	7 years	7 years
Gross Carrying Amount	$ 230,683	$ 230,683
Accumulated Amortization	$ 230,683	$ 230,683
Software [Member]
Finite Lived Intangible Assets [Line Items]
Estimated Useful Life	7 years	7 years
Gross Carrying Amount	$ 1,836,751	$ 1,904,279
Accumulated Amortization	613,382	548,163
Net	$ 1,223,369	$ 1,356,116
Customer lists [Member]
Finite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years	5 years
Gross Carrying Amount	$ 307,153	$ 307,153
Accumulated Amortization	297,153	282,153
Net	$ 10,000	$ 25,000

Goodwill and Other Intangible33

Goodwill and Other Intangible Assets - Schedule of Changes in Goodwill (Detail)	6 Months Ended
	Jun. 30, 2018USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill beginning balance	$ 58,337,290
Adjustment related to Earth911, Inc. asset sale	(128,800)
Goodwill ending balance	$ 58,208,490

Goodwill and Other Intangible34

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization of intangibles	$ 926,650	$ 925,106	$ 1,853,217	$ 1,851,669
Indefinite-lived intangible assets other than goodwill			$ 0
Impairment of goodwill and other intangible assets		$ 0

Accounts Payable and Accrued 35

Accounts Payable and Accrued Liabilities - Components of Accounts Payable and Accrued Liabilities (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Accounts Payable And Accrued Liabilities Current [Abstract]
Accounts payable	$ 15,903,734	$ 12,739,117
Accrued taxes	588,901	807,037
Employee compensation	622,011	434,358
Other	379,144	273,306
Accounts payable and accrued liabilities	$ 17,493,790	$ 14,253,818

Revolving Credit Facility - Add

Revolving Credit Facility - Additional Information (Detail) - USD ($)	Feb. 24, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Line of Credit Facility [Line Items]
Interest expense related to borrowings		$ 105,430	$ 120,491	$ 229,435	$ 234,766
Interest expense related to amortization of discount				46,951	31,300
Revolving credit facility, net		4,924,412		4,924,412		$ 6,763,497
ABL Facility [Member]
Line of Credit Facility [Line Items]
Revolving credit facility maximum principal amount	$ 20,000,000
Debt instrument maturity date	Feb. 24, 2022
Interest expense related to borrowings		81,140	$ 87,435	165,428	$ 197,359
Debt issuance cost		469,507		469,507
Unamortized portion of debt discount		344,306		344,306
Interest expense related to amortization of discount				46,951
Revolving credit current borrowing facility		12,128,000		12,128,000
Revolving credit facility, net		4,924,412		4,924,412
Unamortized debt issuance cost		$ 344,306		$ 344,306
ABL Facility [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument interest rate		6.25%		6.25%
ABL Facility [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument interest rate		4.59%		4.59%
ABL Facility [Member] | Minimum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	1.00%
ABL Facility [Member] | Minimum [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	2.00%
ABL Facility [Member] | Maximum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	1.50%
ABL Facility [Member] | Maximum [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	2.50%
Equipment Loan Facility [Member]
Line of Credit Facility [Line Items]
Revolving credit facility maximum principal amount	$ 2,000,000
Debt instrument maturity date	Feb. 24, 2022
Revolving credit facility, net		$ 0		$ 0
Equipment Loan Facility [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	2.00%
Equipment Loan Facility [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	3.00%

Capital Lease Obligations - Sum

Capital Lease Obligations - Summary of Capital Lease Obligations (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Leases [Abstract]
Capital lease obligations, imputed interest at 4.88% to 13.29%, with monthly payments of approximately $6,000, expiring through September 2019, secured by computer and office equipment	$ 15,547	$ 41,664
Less: current maturities	(15,030)	(39,067)
Long-term portion	$ 517	$ 2,597

Capital Lease Obligations - S38

Capital Lease Obligations - Summary of Capital Lease Obligations (Parenthetical) (Detail) - Capital lease obligations, imputed interest at 4.88% to 13.29% [Member] - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Imputed interest rate for capital lease obligation, minimum	4.88%	4.88%
Imputed interest rate for capital lease obligation, maximum	13.29%	13.29%
Monthly installment capital lease obligation	$ 6,000	$ 6,000
Debt instrument expiring date, description	expiring through September 2019

Capital Lease Obligations - Add

Capital Lease Obligations - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Debt Disclosure [Abstract]
Interest expense related to capital leases	$ 425	$ 1,636	$ 1,043	$ 4,098

Revenue - Additional Informatio

Revenue - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Customer	Jun. 30, 2017USD ($)Customer	Jun. 30, 2018USD ($)Customer	Jun. 30, 2017USD ($)Customer	Dec. 31, 2017USD ($)
Revenue Recognition [Line Items]
Management fees revenue	$ 27,928,626	$ 41,370,594	$ 52,624,549	$ 83,910,416
Deferred contract costs	111,250		111,250		$ 136,139
Deferred revenue	112,544		112,544		$ 309,089
Selling, General and Administrative Expense [Member]
Revenue Recognition [Line Items]
Amortized deferred contract costs	70,417	10,000	103,750	110,000
Reduction to Income [Member]
Revenue Recognition [Line Items]
Amortized deferred contract costs	$ 18,070	$ 18,070	$ 36,139	$ 36,139
Revenue [Member] | Customer Concentration Risk [Member]
Revenue Recognition [Line Items]
Number of customer | Customer	3	2	3	2
Percentage of revenue	53.00%	51.80%	50.80%	53.50%
Management Fee Contract [Member]
Revenue Recognition [Line Items]
Management fees revenue		$ 34,057		$ 78,145
Management Fees Gross Billings [Member]
Revenue Recognition [Line Items]
Management fees revenue		$ 878,563		$ 2,173,022

Revenue - Summary of Revenue Di

Revenue - Summary of Revenue Disaggregated by Source (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation Of Revenue [Line Items]
Total revenue	$ 27,928,626	$ 41,370,594	$ 52,624,549	$ 83,910,416
Services [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	25,324,837	38,080,577	47,330,409	77,916,252
Product Sales and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 2,603,789	$ 3,290,017	$ 5,294,140	$ 5,994,164

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Valuation allowance	$ 11,800,000	$ 12,150,000
Federal income tax net operating loss carry forward	$ 19,700,000	$ 19,700,000
Net operating loss carry forwards expiration beginning year	2,031
Federal corporate income tax rate	21.00%	35.00%

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($)	May 16, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Schedule Of Stockholders Equity [Line Items]
Preferred stock, shares authorized		10,000,000		10,000,000
Preferred stock, par value		$ 0.001		$ 0.001
Preferred stock, shares issued		0		0
Preferred stock, shares outstanding		0		0
Common stock, shares authorized		200,000,000		200,000,000
Common stock, par value		$ 0.001		$ 0.001
Common stock, shares issued		15,313,383		15,302,455
Common stock, shares outstanding		15,313,383		15,302,455
Shares issued for Employee Stock Purchase Plan options, Value		$ 18,396
Employee stock purchase plan expense		$ 5,262	$ 8,990
2014 Employee Stock Purchase Plan [Member]
Schedule Of Stockholders Equity [Line Items]
Shares issued for Employee Stock Purchase Plan options, Shares	10,928
Shares issued for Employee Stock Purchase Plan options, Value	$ 18,396

Stockholders' Equity - Additi44

Stockholders' Equity - Additional Information - Warrants (Detail)	Jun. 30, 2018shares
Class Of Warrant Or Right [Line Items]
Warrants outstanding	1,733,565
Exercisable Warrants [Member]
Class Of Warrant Or Right [Line Items]
Warrants outstanding	1,733,565

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Warrants Issued and Outstanding (Detail)	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Class Of Warrant Or Right [Line Items]
Shares of Common Stock	1,733,565
Exercisable Warrants [Member]
Class Of Warrant Or Right [Line Items]
Shares of Common Stock	1,733,565
Exercisable Warrants [Member] | Warrants One [Member]
Class Of Warrant Or Right [Line Items]
Date of Issuance	Sep. 24, 2014
Date of Expiration	Sep. 24, 2019
Exercise Price | $ / shares	$ 20
Shares of Common Stock	1,125,005
Exercisable Warrants [Member] | Warrants Two [Member]
Class Of Warrant Or Right [Line Items]
Date of Issuance	Oct. 20, 2014
Date of Expiration	Oct. 20, 2019
Exercise Price | $ / shares	$ 20
Shares of Common Stock	87,500
Exercisable Warrants [Member] | Warrants Three [Member]
Class Of Warrant Or Right [Line Items]
Date of Issuance	Mar. 30, 2016
Date of Expiration	Mar. 30, 2021
Exercise Price | $ / shares	$ 3.88
Shares of Common Stock	521,060

Stockholders' Equity - Additi46

Stockholders' Equity - Additional Information - Stock Options (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Equity [Abstract]
Stock options expense	$ 401,453	$ 337,230

Stockholders' Equity - Summar47

Stockholders' Equity - Summary of Stock Option Activity (Detail)	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Outstanding Beginning Balance, Number of Shares | shares	1,389,816
Granted, Number of Shares | shares	400,000
Canceled/Forfeited, Number of Shares | shares	(36,000)
Outstanding Ending Balance, Number of Shares | shares	1,753,816
Outstanding Beginning Balance, Weighted-Average Exercise Price Per Share	$ 8.39
Granted, Weighted-Average Exercise Price Per Share	2.39
Canceled/Forfeited, Weighted-Average Exercise Price Per Share	5.62
Outstanding Ending Balance, Weighted-Average Exercise Price Per Share	7.08
Outstanding, 1.17 — 26.00 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price Per Share, Minimum	1.17
Exercise Price Per Share, Maximum	26
Granted, 2.39 — 2.47 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price Per Share, Minimum	2.39
Exercise Price Per Share, Maximum	2.47
Canceled/Forfeited, 2.39 — 23.20 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price Per Share, Minimum	2.39
Exercise Price Per Share, Maximum	23.20
Outstanding, 1.17 — 26.00 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise Price Per Share, Minimum	1.17
Exercise Price Per Share, Maximum	$ 26