MiMedx (MDXG) 10-K 8 Mar 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Feb. 15, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-35887
Entity Registrant Name	MIMEDX GROUP, INC.
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	26-2792552
Entity Address, Address Line One	1775 West Oak Commons Court, NE
Entity Address, City or Town	Marietta
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30062
City Area Code	770
Local Phone Number	651-9100
Title of 12(g) Security	Common Stock, par value $0.001 per share
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 537.7
Entity Common Stock, Shares Outstanding		111,261,154
Documents Incorporated by Reference	Portions of the proxy statement relating to the 2021 Annual Meeting of Shareholders, to be filed within 120 days after the end of the fiscal year to which this report relates, are incorporated by reference in Part III of this Report.
Entity Central Index Key	0001376339
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 95,812	$ 69,069
Accounts receivable, net	35,423	32,327
Inventory, net	10,361	9,104
Prepaid expenses	5,605	6,669
Income tax receivable	10,045	18
Other current assets	3,371	6,058
Total current assets	160,617	123,245
Property and equipment, net	11,437	12,328
Right of use asset	3,623	3,397
Goodwill	19,976	19,976
Intangible assets, net	6,004	7,777
Other assets	375	443
Total assets	202,032	167,166
Current liabilities:
Accounts payable	8,765	8,710
Accrued compensation	18,467	21,302
Accrued expenses	30,460	32,161
Current portion of long term debt	0	3,750
Other current liabilities	1,470	1,399
Total current liabilities	59,162	67,322
Long term debt, net	47,697	61,906
Other liabilities	3,755	3,540
Total liabilities	110,614	132,768
Commitments and contingencies (Note 14)
Convertible preferred stock Series B; $.001 par value; 100,000 shares authorized, issued and outstanding at December 31, 2020 and 0 authorized, issued and outstanding at December 31, 2019	91,568	0
Stockholders’ (deficit) equity:
Preferred stock Series A; $.001 par value; 5,000,000 shares authorized; 0 issued and outstanding at December 31, 2020 and 0 issued and outstanding at December 31, 2019	0	0
Common stock; $.001 par value; 187,500,000 shares authorized, 112,703,926 issued, and 110,930,243 outstanding at December 31, 2020 and 150,000,000 authorized, 112,703,926 issued and 110,818,649 outstanding at December 31, 2019	113	113
Additional paid-in capital	158,610	147,231
Treasury stock at cost; 1,773,683 shares at December 31, 2020 and 1,885,277 shares at December 31, 2019	(7,449)	(10,806)
Accumulated deficit	(151,424)	(102,140)
Total stockholders’ (deficit) equity	(150)	34,398
Total liabilities, convertible preferred stock, and stockholders’ (deficit) equity	$ 202,032	$ 167,166

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
LIABILITIES, CONVERTIBLE PREFERRED STOCK, AND STOCKHOLDERS’ (DEFICIT) EQUITY
Series B convertible preferred stock par value (in dollars per share)	$ 0.001	$ 0.001
Series B convertible preferred stock, shares authorized (in shares)	100,000	0
Series B convertible preferred stock, shares issued (in shares)	100,000	0
Series B convertible preferred stock, shares outstanding (in shares)	100,000	0
Stockholders’ (deficit) equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	187,500,000	150,000,000
Common stock, shares issued (in shares)	112,703,926	112,703,926
Common stock, shares outstanding (in shares)	110,930,243	110,818,649
Treasury stock, shares (in shares)	1,773,683	1,885,277

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales	$ 248,234,000	$ 299,255,000	$ 359,111,000
Cost of sales	39,330,000	43,081,000	36,386,000
Gross profit	208,904,000	256,174,000	322,725,000
Operating expenses:
Selling, general and administrative	181,022,000	198,205,000	258,528,000
Investigation, restatement and related	59,465,000	66,504,000	51,322,000
Research and development	11,715,000	11,140,000	15,765,000
Amortization of intangible assets	1,073,000	1,039,000	1,034,000
Impairment of intangible assets	1,027,000	446,000	0
Operating loss	(45,398,000)	(21,160,000)	(3,924,000)
Other (expense) income
Loss on extinguishment of debt	(8,201,000)	0	0
Interest (expense) income, net	(7,941,000)	(4,708,000)	527,000
Other (expense) income, net	(3,000)	283,000	0
Loss before income tax provision	(61,543,000)	(25,585,000)	(3,397,000)
Income tax provision benefit (expense)	12,259,000	5,000	(26,582,000)
Net loss	(49,284,000)	(25,580,000)	(29,979,000)
Net loss available to common stockholders (Note 9)	$ (83,328,000)	$ (25,580,000)	$ (29,979,000)
Net (loss) income per common share - basic (in dollars per share)	$ (0.77)	$ (0.24)	$ (0.28)
Net (loss) income per common share - diluted (in dollars per share)	$ (0.77)	$ (0.24)	$ (0.28)
Weighted average shares outstanding - basic (in shares)	108,257,112	106,946,384	105,596,256
Weighted average shares outstanding - diluted (in shares)	108,257,112	106,946,384	105,596,256

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Deficit
Balance, beginning of period (in shares) at Dec. 31, 2017		112,703,926		3,356,409
Balance, beginning of period at Dec. 31, 2017	$ 73,797	$ 113	$ 164,649	$ (44,384)	$ (46,581)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	14,768		14,768
Exercise of stock options	3,555		(8,210)	$ 11,765
Exercise of stock options (in shares)				(786,708)
Issuance of restricted stock	0		(25,657)	$ 25,657
Issuance of restricted stock (in shares)				(1,947,475)
Restricted stock cancellation / forfeited	$ 0		19,194	$ (19,194)
Restricted stock cancellation/forfeited (in shares)				1,861,314
Shares repurchased (in shares)	507,600			507,600
Shares repurchased	$ (7,572)			$ (7,572)
Shares repurchased for tax withholding on vesting of restricted stock units (in shares)				614,123
Shares repurchased for tax withholding on vesting of restricted stock units	(4,914)			$ (4,914)
Net loss	(29,979)				(29,979)
Balance, end of period (in shares) at Dec. 31, 2018		112,703,926		3,605,263
Balance, end of period at Dec. 31, 2018	49,655	$ 113	164,744	$ (38,642)	(76,560)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	11,689		11,689
Exercise of stock options	108		(1,343)	$ 1,451
Exercise of stock options (in shares)				(150,000)
Issuance of restricted stock	0		(37,798)	$ 37,798
Issuance of restricted stock (in shares)				(3,084,875)
Restricted stock cancellation / forfeited	0		9,939	$ (9,939)
Restricted stock cancellation/forfeited (in shares)				1,084,971
Shares repurchased for tax withholding on vesting of restricted stock units (in shares)				429,918
Shares repurchased for tax withholding on vesting of restricted stock units	(1,474)			$ (1,474)
Net loss	(25,580)				(25,580)
Balance, end of period (in shares) at Dec. 31, 2019		112,703,926		1,885,277
Balance, end of period at Dec. 31, 2019	34,398	$ 113	147,231	$ (10,806)	(102,140)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Series B Convertible Preferred Stock	32,954		32,954
Deemed dividends	(32,028)		(32,028)
Share-based compensation expense	15,733		15,733
Exercise of stock options	$ 411		(3,180)	$ 3,591
Exercise of stock options (in shares)	(508,300)			(359,328)
Issuance of restricted stock	$ 0		(5,463)	$ 5,463
Issuance of restricted stock (in shares)				(613,146)
Restricted stock cancellation / forfeited	$ 0		3,363	$ (3,363)
Restricted stock cancellation/forfeited (in shares)				425,388
Shares repurchased (in shares)	148,972
Shares repurchased for tax withholding on vesting of restricted stock units (in shares)				435,492
Shares repurchased for tax withholding on vesting of restricted stock units	$ (2,334)			$ (2,334)
Net loss	(49,284)				(49,284)
Balance, end of period (in shares) at Dec. 31, 2020		112,703,926		1,773,683
Balance, end of period at Dec. 31, 2020	$ (150)	$ 113	$ 158,610	$ (7,449)	$ (151,424)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net loss	$ (49,284)	$ (25,580)	$ (29,979)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Effect of change in revenue recognition	0	(17,382)	0
Share-based compensation	15,357	12,064	14,768
Loss on extinguishment of debt	8,201	0	0
Depreciation	5,782	6,546	5,882
Amortization of deferred financing costs and debt discount	2,276	1,431	137
Amortization of intangible assets	1,073	1,039	1,034
Impairment of intangible assets	1,027	1,258	0
Non cash lease expenses	983	947	0
Accretion of asset retirement obligation	10	0	0
Loss on fixed asset disposal	1	318	0
Amortization of discount on notes receivable	0	0	(190)
Change in deferred income taxes	0	0	25,541
Increase (decrease) in cash resulting from changes in:
Accounts receivable	(3,096)	(10,938)	0
Inventory	(1,257)	6,882	(6,519)
Prepaid expenses	1,064	4	(4,548)
Other assets	(119)	(5,770)	3,562
Accounts payable	177	(6,171)	6,585
Accrued compensation	(2,459)	(1,722)	2,083
Accrued expenses	1,746	(57)	16,074
Income taxes	(10,027)	436	202
Other liabilities	(1,718)	(2,717)	1,164
Net cash flows (used in) provided by operating activities	(30,263)	(39,412)	35,796
Cash flows from investing activities:
Purchases of property and equipment	(4,228)	(1,752)	(9,419)
Patent application costs	(327)	(466)	(609)
Principal payments from note receivable	0	2,722	778
Proceeds from property and equipment sale	0	0	30
Net cash flows (used in) provided by investing activities	(4,555)	504	(9,220)
Cash flows from financing activities:
Proceeds from sale of Series B convertible preferred stock	100,000	0	0
Stock issuance costs	(7,470)	0	0
Proceeds from term loans	59,500	72,750	0
Deferred financing costs	(3,235)	(6,650)	0
Repayment of term loans	(83,872)	(1,875)	0
Prepayment premium on early repayment of term loan	(1,439)	0	0
Stock repurchased for tax withholdings on vesting of restricted stock	(2,334)	(1,474)	(4,914)
Proceeds from exercise of stock options	411	108	3,555
Stock repurchase under repurchase plan	0	0	(7,572)
Payments under capital lease obligations	0	0	(3)
Net cash flows provided by (used in) financing activities	61,561	62,859	(8,934)
Net change in cash	26,743	23,951	17,642
Cash and cash equivalents, beginning of year	69,069	45,118	27,476
Cash and cash equivalents, end of year	$ 95,812	$ 69,069	$ 45,118

Nature of Business

Nature of Business	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business MiMedx Group, Inc. (together with its subsidiaries, except where the context otherwise requires, “ MiMedx ,” or the “ Company ”) is an industry leader in utilizing birth tissue as a platform for regenerative medicine, developing and distributing placental tissue allografts with patent-protected, proprietary processes for multiple sectors of healthcare. As a pioneer in placental biologics, we have both a core business, focused on addressing the needs of patients with acute and chronic non-healing wounds, and a promising late-stage pipeline targeted at decreasing pain and improving function for patients with degenerative musculoskeletal conditions. We derive our products from human placental tissues and process these tissues using our proprietary processing methods, including the PURION® process. We employ Current Good Tissue Practices, Current Good Manufacturing Practices, and terminal sterilization to produce our allografts. MiMedx provides products primarily in the wound care, burn, surgical, and non-operative sports medicine sectors of healthcare. All of our products are regulated by the FDA. The Company’s business model is focused primarily on the United States of America but the Company is pursuing opportunities for international expansion. Effect of the COVID-19 Pandemic On March 11, 2020, the World Health Organization designated the outbreak of a novel strain of coronavirus as a global pandemic (the “ Pandemic ” or “ COVID-19 Pandemic ”). The COVID-19 pandemic and associated governmental and societal responses have affected the Company’s business, results of operations and financial condition. The continuation or additional waves of the outbreak of the COVID-19 pandemic or the outbreak of other health epidemics could harm the Company’s operations, hinder the Company’s ability to generate revenue, or increase the Company’s costs and expenses. The ultimate impact of the pandemic is highly uncertain. As a result of the pandemic, the Company has experienced delays and impacts on the business and clinical trials. It is uncertain the extent and how long the pandemic will affect the healthcare system and the global economy as a whole. The effects of the pandemic or other health epidemics could continue to have an adverse impact on the Company’s business, results of operations, and financial condition in the future. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the “ CARES Act ”) was signed into law. The CARES Act includes provisions relating to refundable payroll tax credits, deferment of the employer portion of certain payroll taxes, loans, and grants to certain businesses, net operating loss carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations and technical corrections to tax depreciation methods for qualified improvement property. Certain of these provisions were extended or expanded as a result of the Consolidated Appropriations Act, 2021, which was signed into law on December 27, 2020. As a result of these laws, the Company recorded a federal tax benefit of approximately $11.3 million due to the release of a previously-recorded valuation allowance. Of this amount, the Company received $1.2 million during the year ended December 31, 2020. The remaining $10.1 million is recorded as part of income tax receivable on the consolidated balance sheet as of December 31, 2020.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Use of Estimates The consolidated financial statements have been prepared in accordance with generally accepted accounting principles (“ GAAP ”) in the United States of America (“ U.S. ”). Generally accepted accounting principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported consolidated statements of operations during the reporting period. Actual results could differ from those estimates. Significant estimates include estimated useful lives and potential impairment of property and equipment, goodwill and intangible assets, estimates of loss for contingent liabilities, estimate of allowance for doubtful accounts, management’s assessment of the Company’s ability to continue as a going concern, estimate of fair value of share-based payments, and valuation of deferred tax assets. Principles of Consolidation The consolidated financial statements include the accounts of MiMedx Group, Inc. and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation. Segment Reporting Accounting Standards Codification (“ ASC ”) 280, “ Segment Reporting ” requires the use of the “management approach” model for segment reporting. The management approach model is based on the way a company’s chief operating decision-maker organizes segments within the Company for which separate discrete financial information is available regarding resource allocation and assessing performance. The Company has determined it operates as one operating segment. Market Concentrations and Credit Risk The Company places its cash and cash equivalents on deposit with U.S.-based financial institutions. The U.S. Federal Deposit Insurance Corporation (“ FDIC ”) provides insurance coverage for deposits up to $250,000 for substantially all depository accounts. As of December 31, 2020 and 2019, the Company had cash and cash equivalents of approximately $95.1 million and $68.4 million, respectively, in excess of the insured amounts in four depository institutions. Cash and Cash Equivalents Cash and cash equivalents include cash held at various banks. The Company considers all highly-liquid investments purchased with an original maturity of three months or less at the date of purchase and money market mutual funds to be cash equivalents. Accounts Receivable Accounts receivable represent amounts due from customers for which revenue has been recognized. Generally, the Company does not require collateral or any other security to support its receivables. Bad debt expense and the allowance for doubtful accounts are based on historical trends and current expectations for credit losses. The Company’s policy to reserve for potential bad debts is based on the aging of the individual receivables as well as customer-specific qualitative factors, such as bankruptcy proceedings. The Company manages credit risk by routinely performing credit checks on customers prior to sales. The individual receivables are written-off after all reasonable efforts to collect the funds have been made. Actual write-offs may differ from the amounts reserved. Inventories Inventories are valued at the lower of cost or net realizable value, using the first–in, first-out (“ FIFO ”) method. Inventory is tracked through raw material, work-in-process, and finished goods stages as the product progresses through various production steps and stocking locations. Labor and overhead costs are absorbed through the various production processes up to when the work order closes. Historical yields and normal capacities are utilized in the calculation of production overhead rates. Reserves for inventory obsolescence are utilized to account for slow-moving inventory as well as inventory no longer needed due to diminished demand. Property and Equipment Property and equipment are recorded at cost and depreciated on a straight-line method over their estimated useful lives, principally three Asset Retirement Obligations The Company records obligations associated with the retirement of tangible long-lived assets and right of use assets and the associated asset retirement costs in accordance with authoritative guidance on asset retirement obligations. The Company reviews legal obligations associated with the retirement of long-lived assets that result from contractual obligations or the acquisition, construction, development and/or normal use of the assets. If it is determined that a legal obligation exists, regardless of whether the obligation is conditional on a future event, the fair value of the liability for an asset retirement obligation is recognized in the period in which it is incurred, if a reasonable estimate of fair value can be made. The fair value is calculated as the estimate of the expected cash outflow to satisfy the legal obligation discounted to present value using the Company’s incremental borrowing rate. At such point in time, an asset and liability are recorded for the amount of the expected liability. The asset amount is depreciated, straight-line over the life of the underlying asset, while the liability is accreted to the amount of the expected outflow through selling, general and administrative expense using the effective interest method. Impairment of Long-lived Assets The Company evaluates the recoverability of its long-lived assets (property, equipment, and intangible assets with finite lives) whenever adverse events or changes in business climate indicate that the expected undiscounted future cash flows from the related assets may be less than their carrying amounts. When a situation determines that it is more likely than not that an asset is not recoverable, the Company estimates cash flows expected to be derived from the continuing use and eventual disposition of the asset. If the sum of those cash flows, not discounted to present value, does not exceed the net book value of the asset, the Company estimates the fair value of the asset. Impairment loss is recorded to the extent that the net book value exceeds the fair value of the asset. Impairment reviews are based on an estimated future cash flow approach that requires significant judgment with respect to future revenue and expense growth rates, selection of appropriate discount rate, asset groupings, and other assumptions and estimates. The Company uses estimates that are consistent with its business plans and a market participant view of the assets being evaluated. Actual results may differ from these estimates. The Company recorded impairment losses on amortizable intangible assets of $1.0 million, $0.5 million, and $0 in in 2020, 2019, and 2018, respectively. The Company recorded no impairment losses with respect to its property and equipment in those periods. Goodwill and Indefinite-lived Intangible Assets Goodwill represents the excess of purchase price over the fair value of net assets of acquired businesses. The Company assesses the recoverability of its goodwill at least annually on September 30, or more frequently whenever events or substantive changes in circumstances indicate that it is more likely than not that goodwill is impaired. In performing the goodwill impairment test, the Company assesses qualitative factors to determine the existence of impairment. If the qualitative factors indicate that it is more likely than not that the carrying value of the reporting unit exceeds its fair value, the Company proceeds to a quantitative test to measure the existence and amount of goodwill impairment. The Company may also choose to bypass the qualitative assessment and proceed directly to the quantitative analysis. At present, the Company has one reporting unit. In performing the quantitative test, impairment loss is recorded to the extent that the carrying value of the reporting unit exceeds the assessed fair value of the reporting unit, not to exceed goodwill allocated to that reporting unit. No impairment is recognized if fair value is determined to exceed carrying value. The Company determines the fair value utilizing the income and market approaches. Under the income approach, the fair value of the Company is the present value of its future cash flows. These future cash flows are derived from revenue, cost savings, tax deductions, working capital flows, capital expenditures, and other projected sources and uses of cash. Value indications are developed by discounting expected cash flows to their present value at a risk-adjusted weighted average cost of capital using the capitalization of market comparable companies. The weighted average cost of capital is rooted in the risk-free rate of a U.S. Treasury with a similar maturity to the time period evaluated, credit risk specific to the Company, relevant equity risk premia, the incremental borrowing rate for the Company, and the prevailing marginal income tax rate. Under the market approach, the Company uses its market capitalization, which is calculated by taking the Company’s share price times the number of outstanding common shares plus the value of Convertible preferred stock Series B outstanding. The Company’s estimates associated with the goodwill impairment test are considered critical due to the amount of goodwill recorded on its consolidated balance sheets and the judgment required in determining fair value, including projected future cash flows. Acquired indefinite-lived intangible assets are tested for impairment annually on September 30 or whenever events or changes in circumstances indicate that the carrying amount of an intangible asset may not be recoverable. The Company’s impairment reviews are based on an estimated future cash flow approach that requires significant judgment with respect to future revenue and expense growth estimates. The Company uses estimates consistent with business plans and a market participant view of the assets being evaluated. Actual results may differ from the estimates used in these analyses. For the goodwill impairment test performed on September 30, 2020, the Company performed a quantitative test for its reporting unit, concluding that the fair value exceeded the carrying value. Therefore, no goodwill impairment was recognized related to this test. There were no recorded impairment losses related to goodwill in 2020, 2019, or 2018. The Company recorded impairment losses related to our indefinite-lived intangible assets of $0, $0.8 million, and $0 related to the abandonment of patents in process during 2020, 2019, and 2018, respectively. Patent Costs The Company incurs certain legal and related costs in connection with patent applications for tissue-based products and processes. The Company capitalizes such costs to be amortized over the expected life of the patent to the extent that an economic benefit is anticipated from the resulting patent or alternative future use is available to the Company. The Company capitalized $0.3 million, $0.5 million, and $0.6 million of patent costs for the years ended December 31, 2020, 2019, and 2018, respectively. Lease Obligations The Company determines if a contract is, or contains, a lease at inception. Right of use assets and the related liabilities resulting from operating leases were included in Right of use asset, Other current liabilities, and Other liabilities, respectively, in the consolidated balance sheets as of December 31, 2020 and 2019. Operating lease assets represent the Company's right to use an underlying asset for the lease term and lease liabilities represent the Company's obligation to make lease payments arising from the lease. Operating lease assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. Since most of the Company’s leases do not have a readily determinable implicit discount rate, the Company uses its incremental borrowing rate to calculate the present value of lease payments determined using the rate of interest that the Company would have to pay on collateralized or secured borrowing over a similar term. Variable components of the lease payments such as fair market value adjustments, utilities, and maintenance costs are expensed as incurred and not included in determining the present value of lease liabilities. The lease term and applicable payments include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. As an accounting policy election, the Company does not capitalize leases having initial terms of 12 months or fewer. Lease expense is recognized on a straight-line basis over the lease term. The Company has made an accounting policy election not to separate lease components from non-lease components in the event that the agreement contains both. The Company continues to account for leases in financial statements prior to January 1, 2019 under ASC 840. See Note 5, “ Leases” for further information regarding lease obligations. Contingencies The Company is or has been subject to various patent challenges, product liability claims, government investigations, former employee matters, and other legal proceedings, see Note 14, “ Commitments and Contingencies .” Legal fees and other expenses related to litigation are expensed as incurred and included in selling, general and administrative expenses in the consolidated statements of operations. The Company records an accrual for legal settlements and other contingencies in the consolidated financial statements when the Company determines that a loss is both probable and reasonably estimable. The Company discloses all ongoing legal matters for which a loss is probable, regardless of whether an estimate can be reasonably determined. Due to the fact that legal proceedings and other contingencies are inherently unpredictable, the Company’s estimates of the probability and amount of any such liabilities involve significant judgment regarding future events. The actual costs of resolving a claim may be substantially different from the amount of reserve the Company recorded. The Company records a receivable from its product liability insurance carriers only when the resolution of any dispute has been reached and realization of the amounts equal to the potential claim for recovery is considered probable. Any recovery of an amount in excess of the related recorded contingent loss will be recognized only when all contingencies relating to recovery have been resolved. Revenue Recognition Current Policy The Company sells its products primarily to individual customers and independent distributors (collectively referred to as “ customers ”). Customers obtain and use products either through ship and bill sales or consignment arrangements. Under ship and bill arrangements, the Company retains possession of the product until the customer submits an order. Upon approval of the sales order, the Company ships product to the customer and invoices them for the product sold. Under consignment arrangements, the customer takes possession of the product, but the Company retains title until the implantation, or application of the Company’s product to the end user. Subsequent to the Transition (as defined below) and including all of the year ended December 31, 2020, the Company recognizes revenue as performance obligations are fulfilled; which occurs upon the shipment of product to the customers for ship and bill orders or upon implantation for consignment sales. Revenue is recognized based on the consideration the Company expects to receive from the sale. This consists of the gross selling price of the product, less any discounts or rebates (collectively, “ deductions ” or “ sales deductions ”). Gross selling price is a standard set by the Company for all customers unless a contract governing the sale provides for a specified price. Sales deductions are specified in individual contracts with customers and generally achieved based on total sales during a specified period. The Company estimates the total sales deductions which a specific customer will achieve over the relevant term and applies the reduction to sales as they are made throughout the period. Rebates owed to customers are accrued and recorded in accrued expenses on the consolidated balance sheets. The Company acts as the principal in all of its customer arrangements and therefore records revenue on a gross basis. Shipping is considered immaterial in the context of the overall customer arrangement, and damages or loss of goods in transit are rare. Therefore, shipping is not deemed a separately recognized performance obligation and the Company has elected to treat shipping costs as activities to fulfill the promise to transfer the product. The Company maintains a returns policy that allows its customers to return product that is consigned, damaged or non-conforming, ordered in error, or due to a recall. The estimate of the provision for returns is based upon historical experience with actual returns given consideration to any changes in historical periods presented. The Company’s payment terms for customers are typically 30 to 60 days from receipt of title of the goods. In addition to the above revenue recognition policy, the Company recognizes revenue associated with the Remaining Contracts (as defined below) upon cash receipt. The Remaining Contracts represent contracts for which all of the criteria necessary for revenue recognition were not met at the time of shipment and that such criteria would not be met until ultimate collection of such sales. A summary of amounts collected and recorded as net sales for the years ended December 31, 2020 and 2019, as well as amounts still outstanding as of those dates, are as follows (amounts in thousands): Amounts Invoiced and Not Collected Deferred Cost of Sales Amounts as of September 30, 2019 $ 48,883 $ 6,415 Revenue recognized related to amounts invoiced and not collected at September 30, 2019: Transition Adjustment during the three months ended September 30, 2019 (21,385) (2,565) Cash collected during the three months ended December 31, 2019 related to the Remaining Contracts (8,219) (1,151) (29,604) (3,716) Write-off of customer contracts where collection is no longer reasonably assured (a) (10,273) (1,438) Amounts as of December 31, 2019 9,006 1,261 Cash collected during the year ended December 31, 2020 related to the Remaining Contracts (7,767) (1,087) Amounts as of December 31, 2020 $ 1,239 $ 174 (a) The Company determined that for approximately $10.3 million of existing contracts where payment had not been received, collection was no longer reasonably assured. As a result, $1.4 million of deferred cost of sales relating to these customers was written off. Any future collections relating to these customer contracts will be recorded as revenue at the time payment is received. Previous Revenue Recognition Policy and Transition In 2018, and into part of 2019, the Company’s control environment was such that it created uncertainty surrounding all of its customer arrangements, which required consideration related to the proper revenue recognition under the applicable literature. The control environment allowed for the existence of extra-contractual or undocumented terms or arrangements initiated by or agreed to by the Company and former members of Company management at the outset of the transactions (side agreements). Concessions were also agreed to subsequent to the initial sale (e.g. sales above established customer credit limits extended and unusually long payment terms, return or exchange rights, and contingent payment obligations) that called into question the ability to recognize revenue at the time that product was shipped to a customer. The applicable revenue recognition guidance also changed beginning January 1, 2018, which further impacted the Company’s revenue recognition methodology. The Company changed its pattern of revenue recognition effective October 1, 2019. As a result, the Company’s pattern of revenue recognition varies between the years ended December 31, 2020, 2019, and 2018. The application of the relevant revenue recognition guidance and the pattern of revenue recognition are further discussed below for each period presented. Fiscal Year Ended December 31, 2018 The Company adopted ASC Topic 606, Revenue from Contracts with Customers (“ ASC 606 ”) , on January 1, 2018 by using the modified retrospective method. ASC 606 establishes principles for reporting information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the entity's contracts to provide goods or services to customers. The core principle requires an entity to recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration that it expects to be entitled to receive in exchange for those goods or services recognized as performance obligations are satisfied. The Company assessed the impact of the ASC 606 guidance by reviewing customer contracts and accounting policies and practices to identify differences, including identification of the contract and the evaluation of the Company’s performance obligations, transaction price, customer payments, transfer of control and principal versus agent considerations. ASC 606 establishes a five-step model for revenue recognition. The first of these steps requires the identification of the contract as described in ASC 606-10-25-1. The specific criteria (the “ Step 1 Criteria ”) to this determination are as follows: • The parties to the contract have approved the contract (in writing, orally, or in accordance with other customary business practices) and are committed to perform their respective obligations; • The entity can identify each party’s rights regarding the goods or services to be transferred; • The entity can identify the payment terms for the goods or services to be transferred; • The contract has commercial substance; and • It is probable that the entity will collect substantially all of the consideration to which it will be entitled in exchange for the goods or services that will be transferred to the customer. The Company concluded that the first three of the above criteria were not met upon shipment of product to the customer, the fourth criteria had been met and the Company acknowledges that there is a degree of uncertainty as to whether last criteria above had been met. Although the parties to the contract may have approved the contract and purchase orders in writing, the Company concluded that upon shipment of products to the customer there was not sufficient evidence that its customers were committed to perform their obligations defined in the contract due to the existence of extra-contractual or undocumented terms or arrangements (e.g., regarding payment terms, right of return, etc.). The Company could not reliably identify each party’s rights regarding the products to be transferred upon shipment of those products to customers. The Company’s sales personnel continued to make side agreements with customers which directly conflicted with the explicitly stated terms of sale. These side agreements created significant ambiguity around the rights and obligations of both parties involved in the transaction. This practice continued to result in extended payment terms and returns occurring long after the original sale was made. The Company’s business practices created an implied right for the customer to demand future, unknown, performance by the Company. As a result, each party (and, in particular, the Company) could not at the time of product shipment adequately determine its rights regarding the good transferred as required by ASC 606-10-25-1. Upon shipment of product to the customer, the Company could not reliably identify the payment terms for the products it sold to customers. Although the written payment terms were known to both parties, the Company’s pervasive business practices (e.g., informal and undocumented side agreements) overrode the written payment terms and often resulted in extensions of the terms for payment. The Company’s contracts did appear to have commercial substance (i.e., the risk, timing, or amount of the Company’s future cash flows was expected to change as a result of the contract) upon fulfillment of a purchase order, as most fulfillments have eventually resulted in the Company receiving cash. Therefore, the Company concluded that this criterion appears to be met upon shipment of product to customers (i.e., fulfillment of the purchase order). The probability that the Company would collect the consideration to which it was entitled in exchange for products shipped to the customer was questionable. In evaluating whether the collectibility of an amount of consideration was probable, the Company considered the customer’s ability and intention to pay that amount of consideration when it was due. Historically, the customers’ intention to pay amounts when due was uncertain in light of the conflicting messages customers received with respect to the payment terms and rights of return and lack of adherence to credit limits. The assessment in ASC 606 is based on whether the customer has the ability and intention to pay for the product being delivered by the Company. Assessment of a customer’s ability to pay is typically done through a credit check process and the establishment of a credit limit for each customer by the Company’s accounts receivable team. Although the Company did have a process in place to establish credit limits, the evidence previously mentioned indicates that those credit limits were routinely overridden by certain sales personnel and members of management. Despite these overrides, the Company recovered the majority of its billings made in 2018. Furthermore, the quantitative and qualitative evidence gathered by the Company raised considerable doubt as to the collectibility of its billings at the time of shipment, but this evidence was not persuasive enough for the Company to conclude that collectibility was not probable. As a result of the considerations outlined above, the Company determined that it did not meet the criteria necessary for its revenue arrangements to qualify as “contracts” under the requirements of ASC 606 (i.e., these arrangements did not pass the Step 1 Criteria of the revenue recognition model). The Company’s inability to fulfill these criteria was due to uncertainties of contractual adjustments with customers created by a combination of an inappropriate tone at the top and extra-contractual arrangements. Consequently, as of the date of the Company’s adoption of ASC 606 effective January 1, 2018 and for the remainder of the year ended December 31, 2018, the Company concluded that it did not meet the Step 1 Criteria upon physical delivery of the product. Subsequent to the delivery of product, uncertainties surrounding contractual adjustment were not resolved until either: (1) the customer returned the product prior to payment; or (2) the Company received payment from the customer. At that point, the Company determined that an accounting contract existed and the performance obligations of the Company to deliver product and the customer to pay for the product were satisfied. The Company determined the transaction price of its contracts to equal the amount of consideration received from customers less the amount expected to be refunded or credited to customers, which is recognized as a refund liability that is updated at the end of each reporting period for changes in circumstances. The refund liability was included within accrued expenses in the consolidated balance sheet as of December 31, 2018. The Company considered how to account for costs associated with the delivered products of the contract for which revenue has been deferred, which is whether to match the related costs of sales expense with revenue or recognize expense upon shipment. In making this assessment, the Company considered the financial viability of its distributors and customers based on their creditworthiness to determine if collectibility of amounts sufficient to realize the costs of the products shipped was reasonably assured at the time of shipment. As the Company determined that there was a probable economic benefit associated with sales transactions, the Company deferred the cost of sales until the revenue was recognized for the year ended December 31, 2018. The Company also continued to offset deferred revenue with the associated accounts receivable obligations in connection with the sales of products to its customers. The amount shipped and billed but not recorded as revenue was $51.0 million for the year ended December 31, 2018. Fiscal Year Ended December 31, 2019 and Transition The Company continued to assess contracts, new and existing, throughout 2019 to determine if the Step 1 Criteria noted above for the determination of a contract under ASC 606 were met for new contracts at the outset of a sales transaction (i.e., upon shipment of product) or for existing contracts at some point within 2019 when all the terms of the arrangement would have been known. Until it was determined if the Step 1 Criteria had been met, revenue recognition continued to be deferred consistent with the assessment for the year ended December 31, 2018. As further discussed above, the primary factors contributing to the determination in prior periods that the Step 1 Criteria had not been met were the inappropriate tone at the top and the existence of pervasive extra-contractual or undocumented terms or arrangements. These prior business practices and the lack of transparency surrounding them created a systemically implied right for customers to demand future, unknown, performance by the Company. Although some of the former executives were employed by the Company only through June 2018, the Company determined that based on the impact of the prior tone at the top, the continued internal sales force strategy and the existing customer base’s continued expectations (based on past practice), there would be flexibility with respect to arrangement terms even after delivery of the product so pervasive that all customer arrangements continued to be subject to uncertain modification of terms into 2019. After identifying the primary factors contributing to the lack of knowledge regarding its customer contractual terms, the Company began implementing changes in mid-2018 to remediate the pervasive weaknesses in the control environment, followed by gradually implementing measures to empower its compliance, legal, and accounting departments, educating its sales force on appropriate business practices, and communicating its revised terms of sale to customers. The Company assessed its efforts throughout 2019 to determine when, if at any point, the factors contributing to the inability to satisfy the Step 1 Criteria were sufficiently addressed such that the Step 1 Criteria were met at the time of physical delivery to the customer. Determining when these conditions were effectively satisfied was a matter of judgment; however, the Company determined that adequate knowledge of the contractual arrangements with its customers did exist in 2019 for new and certain existing arrangements. Management did note that there is no single, definitive change that overcame the pervasive challenges noted above, but rather an accumulation of efforts that, taken together, resulted in sufficient knowledge of contractual relationships both internally within the Company and externally with its customers. To address the tone at the top issues, the Company noted that proper remediation involved not only the removal of members of management who were setting an inappropriate tone but also the establishment of new management throughout the organization who emphasized a commitment to integrity, ethical values and transparency and have that reinforcement for a sustained period of time. The changes made to management positions throughout the organization and the resulting organization behavior changes were assessed to have been sufficiently addressed by mid-2019. To determine when the Company had either eliminated or had sufficient knowledge to identify any extra-contractual arrangements, the Company noted that a key factor contributing to its historical lack of visibility into the arrangements with its customers was the failure to adhere to credit limits, payment terms and return policies. The establishment of additional controls and the emphasis on adherence to the Company’s exi

Inventory

Inventory	12 Months Ended
	Dec. 31, 2020
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory consists of the following (in thousands): December 31, 2020 2019 Raw materials $ 328 $ 318 Work in process 4,543 4,299 Finished goods 6,329 5,206 Inventory, gross 11,200 9,823 Reserve for obsolescence (839) (719) Inventory, net $ 10,361 $ 9,104 Consignment inventory, included as a component of finished goods in the table above, was $3.5 million and $3.4 million as of December 31, 2020 and 2019, respectively.

Property and Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment Property and equipment consist of the following (in thousands): . December 31, 2020 2019 Leasehold improvements $ 6,010 $ 5,321 Laboratory and clean room equipment 15,524 14,894 Furniture and office equipment 15,295 15,118 Construction in progress 3,321 972 Asset retirement cost 785 — Property and equipment, gross 40,935 36,305 Less accumulated depreciation and amortization (29,498) (23,977) Property and equipment, net of accumulated depreciation $ 11,437 $ 12,328 Depreciation expense for each of the years ended December 31, 2020, 2019, and 2018 was recorded in certain captions of the consolidated statements of operations for those periods in the amounts shown in the table below (in thousands): Year ended December 31, 2020 2019 2018 Cost of sales $ 2,022 $ 1,965 $ 1,757 Selling, general and administrative expenses 3,416 4,223 3,760 Research and development expenses 344 358 365 Total $ 5,782 $ 6,546 $ 5,882

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Leases The Company has operating leases primarily for corporate offices, vehicles, and certain equipment. Such leases do not require any contingent rental payments, impose any financial restrictions, or contain any residual value guarantees. The Company determines if an arrangement is or contains a lease at inception. Lease expense for operating lease payments is recognized on a straight-line basis over the term of the lease. Operating lease assets and liabilities are recognized based on the present value of lease payments over the lease term. Since most of the Company’s leases do not have a readily determinable implicit discount rate, the Company uses its incremental borrowing rate to calculate the present value of lease payments determined using the rate of interest that the Company would have to pay on collateralized or secured borrowing over a similar term. As a practical expedient, the Company has made an accounting policy election not to separate lease components from non-lease components in the event that the agreement contains both. The Company includes both the lease and non-lease components for purposes of calculating the right of use asset and related lease liability. As of December 31, 2020, the Company does not have any leases classified as financing leases. The Company subleases one of its leased industrial warehouse spaces. The sublease income from the facility offsets the lease expense associated with the facility. Sublease income for the facility is $0.1 million, $0, and $0 for the years ended December 31, 2020, 2019, and 2018, respectively, and is presented as a reduction to selling, general, and administrative expense on the consolidated statements of operations in those periods. Supplemental balance sheet information related to operating leases is as follows (amounts in thousands, except lease term and discount rate): December 31, 2020 2019 Assets Right of use asset $ 3,623 $ 3,397 Liabilities Short term lease liability 1,176 1,168 Long term lease liability 2,960 2,919 Weighted-average remaining lease term (years) 4.4 years 3.1 years Weighted-average discount rate 10.0 % 11.5 % Information related to lease costs for operating leases are as follows (amounts in thousands): Year ended December 31, 2020 2019 Operating lease cost $ 1,392 $ 1,469 Amortization of leased assets 983 947 Rent expense for the year ended December 31, 2018, which was accounted for under ASC 840, Leases , was $1.5 million. This amount, as well as those included in the table above, are allocated among cost of sales, research and development and selling, general and administrative expenses in the consolidated statements of operations. Maturities of operating lease liabilities are as follows (amounts in thousands): Year ending December 31, Maturities 2021 $ 1,537 2022 1,566 2023 507 2024 339 2025 339 Thereafter 705 Total lease payments 4,993 Less: imputed interest (857) $ 4,136 Certain lease agreements require the Company to return designated areas of leased space to its original condition upon termination of the lease agreement, for which the Company records an asset retirement obligation and a corresponding capital asset in an amount equal to the estimated fair value of the obligation. In subsequent periods, the asset retirement obligation is accreted for the change in its present value and the capitalized asset is depreciated, both over the term of the associated lease agreement. Asset retirement obligations of $0.8 million and $0 of December 31, 2020 and 2019, respectively, are included under Other liabilities in the consolidated balance sheets.
Leases	Leases The Company has operating leases primarily for corporate offices, vehicles, and certain equipment. Such leases do not require any contingent rental payments, impose any financial restrictions, or contain any residual value guarantees. The Company determines if an arrangement is or contains a lease at inception. Lease expense for operating lease payments is recognized on a straight-line basis over the term of the lease. Operating lease assets and liabilities are recognized based on the present value of lease payments over the lease term. Since most of the Company’s leases do not have a readily determinable implicit discount rate, the Company uses its incremental borrowing rate to calculate the present value of lease payments determined using the rate of interest that the Company would have to pay on collateralized or secured borrowing over a similar term. As a practical expedient, the Company has made an accounting policy election not to separate lease components from non-lease components in the event that the agreement contains both. The Company includes both the lease and non-lease components for purposes of calculating the right of use asset and related lease liability. As of December 31, 2020, the Company does not have any leases classified as financing leases. The Company subleases one of its leased industrial warehouse spaces. The sublease income from the facility offsets the lease expense associated with the facility. Sublease income for the facility is $0.1 million, $0, and $0 for the years ended December 31, 2020, 2019, and 2018, respectively, and is presented as a reduction to selling, general, and administrative expense on the consolidated statements of operations in those periods. Supplemental balance sheet information related to operating leases is as follows (amounts in thousands, except lease term and discount rate): December 31, 2020 2019 Assets Right of use asset $ 3,623 $ 3,397 Liabilities Short term lease liability 1,176 1,168 Long term lease liability 2,960 2,919 Weighted-average remaining lease term (years) 4.4 years 3.1 years Weighted-average discount rate 10.0 % 11.5 % Information related to lease costs for operating leases are as follows (amounts in thousands): Year ended December 31, 2020 2019 Operating lease cost $ 1,392 $ 1,469 Amortization of leased assets 983 947 Rent expense for the year ended December 31, 2018, which was accounted for under ASC 840, Leases , was $1.5 million. This amount, as well as those included in the table above, are allocated among cost of sales, research and development and selling, general and administrative expenses in the consolidated statements of operations. Maturities of operating lease liabilities are as follows (amounts in thousands): Year ending December 31, Maturities 2021 $ 1,537 2022 1,566 2023 507 2024 339 2025 339 Thereafter 705 Total lease payments 4,993 Less: imputed interest (857) $ 4,136 Certain lease agreements require the Company to return designated areas of leased space to its original condition upon termination of the lease agreement, for which the Company records an asset retirement obligation and a corresponding capital asset in an amount equal to the estimated fair value of the obligation. In subsequent periods, the asset retirement obligation is accreted for the change in its present value and the capitalized asset is depreciated, both over the term of the associated lease agreement. Asset retirement obligations of $0.8 million and $0 of December 31, 2020 and 2019, respectively, are included under Other liabilities in the consolidated balance sheets.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill Goodwill is evaluated for impairment on an annual basis on September 30, and when events or changes indicate it is more likely than not the carrying value exceeds fair value. The Company operates as one reporting unit. For the impairment test performed September 30, the Company performed a quantitative analysis to determine the existence and extent of impairment. The quantitative analysis concluded that the fair value of the Company’s reporting unit exceeded its carrying value. As a result of these assessments, the Company concluded that there was no impairment. Accordingly, no impairment was recorded for the year ended December 31, 2020. For the impairment test performed September 30, 2019, the Company performed a qualitative analysis to determine if it was more likely than not that goodwill impairment existed as of the annual impairment test date. As a result of this assessment, the Company concluded that it was not more likely than not that goodwill was impaired. Accordingly, the Company did not perform a quantitative assessment. There was no impairment recorded with respect to goodwill for the year ended December 31, 2019. The following represents the changes in the carrying amount of goodwill for 2020 and 2019 (in thousands): Goodwill Balance as of January 1, 2019 $ 19,976 Activity — Balance as of December 31, 2019 19,976 Activity — Balance as of December 31, 2020 $ 19,976 Intangible Assets Intangible assets are summarized as follows (in thousands): December 31, 2020 December 31, 2019 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Amortized intangible assets Licenses $ 1,414 $ (1,334) $ 80 $ 1,414 $ (1,200) $ 214 Patents and know-how 9,510 (5,730) 3,780 9,099 (5,070) 4,029 Customer and supplier relationships 241 (172) 69 3,761 (2,417) 1,344 Non-compete agreements 120 (98) 22 120 (68) 52 Total amortized intangible assets $ 11,285 $ (7,334) $ 3,951 $ 14,394 $ (8,755) $ 5,639 Unamortized intangible assets Tradenames and trademarks $ 1,008 $ 1,008 $ 1,008 $ 1,008 Patents in process 1,045 1,045 1,130 1,130 Total intangible assets $ 13,338 $ 6,004 $ 16,532 $ 7,777 Amortization expense for the years ended December 31, 2020, 2019, and 2018, is summarized in the table below (amounts in thousands): Year ended December 31, 2020 2019 2018 Amortization of intangible assets $ 1,073 $ 1,039 $ 1,034 Impairment of intangible assets 1,027 1,258 — Impairment of intangible assets in 2020 related to customer relationship assets that were determined to be unrecoverable due to lower than expected margins. Impairment of intangible assets in 2019 were related to the abandonment of patents in process and customer relationship assets. Expected future amortization of intangible assets as of December 31, 2020, is as follows (in thousands): Estimated Amortization Year ending December 31, Expense 2021 $ 793 2022 691 2023 691 2024 691 2025 279 Thereafter 806 $ 3,951

Accrued Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued Expenses	Accrued Expenses Accrued expenses consist of the following (in thousands): December 31, 2020 2019 Legal costs $ 14,822 $ 12,202 Settlement costs 9,975 12,825 Estimated returns 688 2,581 External commissions 2,141 1,722 Accrued clinical trials 651 1,076 Accrued rebates 886 142 Other 1,297 1,613 Total $ 30,460 $ 32,161

Long Term Debt

Long Term Debt	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Long Term Debt	Long Term Debt Hayfin Term Loan Agreement On June 30, 2020, the Company entered into a Loan Agreement with, among others, Hayfin Services, LLP, (“ Hayfin ”) an affiliate of Hayfin Capital Management LLP (the “ Hayfin Loan Agreement ”), which was funded (the “ Hayfin Loan Transaction ”) on July 2, 2020 (the “ Closing Date ”) and provided the Company with a senior secured term loan in an aggregate amount of $50.0 million (the “ Term Loan ”) and an additional delayed draw term loan (the “ DD TL ”, collectively, the “ Credit Facilities ”) in the form of a committed but undrawn $25.0 million facility. The Company has the right to draw upon the DD TL until June 30, 2021. The Term Loan and the DD TL (if drawn upon prior to expiry) both mature on June 30, 2025 (the “ Maturity Date ”). Interest is payable on the Term Loan and the DD TL for balances outstanding quarterly through the Maturity Date. No principal payments on either the Term Loan or the DD TL are due and payable until the Maturity Date. The Term Loan and DD TL, which are senior secured obligations, were entered into together with the sale of the Company’s Series B Convertible Preferred Stock (as defined and described in Note 10, “ Equity ”) for $100.0 million (collectively, the “ Financing Transactions ”) in order to: (1) refinance, in whole, the outstanding indebtedness (the “ Refinancing ”) under the Loan Agreement, dated as of June 10, 2019 (as amended and restated, the “ BT Term Loan Agreement ”), among the Company, the lenders and Blue Torch Finance LLC as administrative agent and collateral agent for such lenders, (2) pay fees and expenses incurred with certain financing transactions, and (3) finance the working capital, capital expenditures, and other general corporate obligations of the Company. The interest rate applicable to any borrowings under the Term Loan is equal to LIBOR (subject to a floor of 1.5%) plus a margin of 6.75% per annum. If LIBOR is unavailable, the loan will carry interest at the greatest of the Prime Rate, the Federal Funds Rate plus 0.5% per annum, and 2.5%, plus the margin of 6.75%. After December 31, 2020, the margin on the interest rate is eligible for a reduction; as follows: • 6.75% per annum if the Total Net Leverage Ratio (as defined in the Hayfin Loan Agreement) is greater than 2.0x, • 6.5% per annum if the Total Net Leverage Ratio is less than 2.0x but greater than or equal to 1.0x, or • 6.0% per annum if the Total Net Leverage Ratio is less than 1.0x. An additional 3.0% margin is applied to the interest rate in the event of default as defined by the Hayfin Term Loan Agreement. Both at issuance and as of December 31, 2020, the Term Loan carried an interest rate of 8.3%. The Credit Facilities contain financial covenants requiring the Company, on a consolidated basis, to maintain the following: • Maximum Total Net Leverage Ratio of 5.0x through December 31, 2020, reduced to 4.5x through June 30, 2021, further reduced to 4.0x thereafter for the life of the loans, required to be calculated on a quarterly basis, • Delayed Draw Term Loan Incurrence Covenant (as defined in the Hayfin Loan Agreement) of 3.5x Total Net Leverage, tested prior to any drawings under the DD TL, and • Minimum Liquidity (as defined in the Hayfin Term Loan Agreement) of $10 million, an at-all-times financial covenant, tested monthly. The Credit Facilities also specify that any prepayment of the loan, voluntary or mandatory, as defined in the Term Loan Agreement, subjects the Company to a prepayment premium applicable as of the date of the prepayment: • On or before the first anniversary of the Closing Date: ◦ A make-whole premium, equal to the greater of: ▪ 5% of the principal balance repaid, ▪ 102% of the principal balance plus interest that would have been accrued from the repayment date to 12 months following the Closing Date. • After the first anniversary of the Closing Date but on or before the second anniversary of the Closing Date: 2% of the principal balance repaid. • After the second anniversary of the Closing Date but on or before the third anniversary of the Closing Date: 1% of the principal balance repaid. • After the third anniversary of the Closing Date: 0% of the principal balance repaid. The Hayfin Loan Agreement also includes events of default customary for facilities of this type, and upon the occurrence of such events of default, subject to customary cure rights, all outstanding loans under the Credit Facilities may be accelerated or the lenders’ commitments terminated. The mandatory prepayments are also required in the event of a change in control, incurring other indebtedness, certain proceeds from disposal of assets and insured casualty event. Beginning with the fiscal year ending December 31, 2021, the Company is required to prepay the outstanding loans based on the percentage of Excess Cash Flow (as defined in the Hayfin Loan Agreement), if such is generated, with the percentage determined based on the Total Net Leverage thresholds. Hayfin maintains a first-priority security interest in substantially all of the Company’s assets. Original issue discount and deferred financing costs incurred as part of the Financing Transactions were allocated between the sale of the Series B Convertible Preferred Stock and the Hayfin Term Loan on the basis of the relative fair values of the transactions. The costs allocated to the Hayfin Term Loan were further allocated between the Term Loan and the DD TL on the basis of the maximum potential principal outstanding between the Credit Facilities. The allocation of the deferred financing costs and original issue discount between Term Loan and the DD TL on July 2, 2020 was as follows (amounts in thousands): July 2, 2020 Term Loan DD TL Total Long term debt Other current assets Original issue discount $ 333 $ 167 $ 500 Deferred financing costs 2,169 1,084 3,253 Deferred financing costs and original issue discount allocated to the Term Loan are amortized using the effective interest method through the Maturity Date. The amortization of such amounts are presented as part of interest expense (income), net on the consolidated statement of operations for the year ended December 31, 2020. Deferred financing costs and original issue discount associated with the DD TL are amortized using the straight-line method through the earlier of the expiration of the DD TL commitment term on June 30, 2021, or the date the balance of the DD TL is funded. To the extent that there are unamortized deferred financing costs or original issue discount associated with the DD TL upon funding, such amounts will be amortized using the effective interest method through the Maturity Date. Amortization of these amounts are presented as part of interest expense (income), net on the consolidated statements of operations. Unamortized deferred financing costs and original issue discount associated with the DD TL are presented as other current assets on the consolidated balance sheet as of December 31, 2020. The DD TL is subject to a commitment fee of 1% per annum of the amount undrawn, which is recognized as interest expense. The DD TL was not drawn upon as of December 31, 2020. The balances of the Term Loan as of December 31, 2020 were as follows (amounts in thousands): December 31, 2020 Outstanding principal $ 50,000 Deferred financing costs (1,996) Original issue discount (307) Long term debt $ 47,697 Components of interest expense related to the Term Loan, included in interest expense (income), net on the consolidated statements of operations, was as follows (amounts in thousands): Year ended December 31, 2020 Stated interest $ 2,085 Amortization of deferred financing costs 173 Accretion of original issue discount 26 Interest expense $ 2,284 Interest expense related to the DD TL, included in interest (expense) income, net in consolidated statements of operations, was as follows (amounts in thousands): Year ended December 31, 2020 Commitment fee $ 128 Amortization of deferred financing costs 542 Accretion of original issue discount 83 Interest expense $ 753 Scheduled principal payments on the Term Loan as of December 31, 2020 are as follows: Year ending December 31, Principal 2021 $ — 2022 — 2023 — 2024 — 2025 50,000 Thereafter — Outstanding principal $ 50,000 The DD TL was not funded as of December 31, 2020. Consequently, no principal payments are owed. As of December 31, 2020, the fair value of the Term Loan was $52.8 million. This valuation was calculated based on a series of Level 2 and Level 3 inputs, including a discount rate based on the credit risk spread of debt instruments of similar risk character in reference to U.S. Treasury instruments with similar maturities, with an incremental risk premium for risk factors specific to the Company. The remaining cash flows associated with the Term Loan were discounted to December 31, 2020 using this discount rate to derive the fair value. BT Term Loan On June 10, 2019, the Company entered into a loan agreement (the “ BT Loan Agreement ”) with Blue Torch Finance LLC (“ Blue Torch ”), as administrative agent and collateral agent, to borrow funds with a face value of $75.0 million (the “ BT Term Loan ”), of which the full amount was borrowed and funded. The proceeds from the BT Term Loan were used (i) for working capital and general corporate purposes and (ii) to pay transaction fees, costs and expenses incurred in connection with the BT Term Loan and the related transactions. The BT Term Loan would have matured on June 20, 2022 and was repayable in quarterly installments of $0.9 million, with the balance due on June 20, 2022. Blue Torch maintained a first-priority security interest in substantially all the Company’s assets. The BT Term Loan was issued net of the original issue discount of $2.3 million. The Company incurred $6.7 million of deferred financing costs. On April 22, 2020, the Company amended the BT Loan Agreement with Blue Torch. The amendment provided for an increase in the maximum Total Leverage Ratio, which was a quarterly test, for the remainder of 2020, and also provided for a reduction in the minimum Liquidity requirement from April 2020 through November 2020. In connection with the amendment, the Company agreed to pay a one-time fee of approximately $0.7 million, added to the principal balance, and a 1 percentage point increase in the interest rate to LIBOR plus 9%. On July 2, 2020, a portion of the proceeds from the Financing Transactions were used to repay the outstanding balance of principal, accrued but unpaid interest, and prepayment premium under the BT Loan Agreement. In connection with the repayment of the BT Term Loan, the Company terminated the BT Loan Agreement. The Company has no continuing obligations related to the BT Term Loan as of December 31, 2020. The Company recorded a loss on extinguishment of debt of $8.2 million. The composition of the loss on extinguishment of debt was as follows (amounts in thousands): July 2, 2020 Unamortized deferred financing costs $ 4,528 Unamortized original issue discount 1,538 Unamortized amendment fee 671 Prepayment premium 1,439 Other fees 25 Loss on extinguishment of debt $ 8,201 The balances of the BT Term Loan were as follows (amounts in thousands): December 31, 2019 Current portion Long-term Outstanding principal $ 3,750 $ 69,375 Original issue discount — (1,890) Deferred financing cost — (5,579) Long-term debt $ 3,750 $ 61,906 Interest expense related to the BT Term Loan, included in interest (expense) income, net in the consolidated statements of operations was as follows (amounts in thousands): Year ended December 31, 2020 2019 Interest on principal balance $ 3,773 $ 4,331 Accretion of original issue discount 354 360 Accretion of amendment fee 53 — Amortization of deferred financing costs 1,051 1,071 Total BT Term Loan interest expense $ 5,231 $ 5,762 Paycheck Protection Program Loan The Company applied for and, on April 24, 2020, received proceeds of $10.0 million in the form of a loan under the Paycheck Protection Program (the “ PPP Loan ”). On May 11, 2020, the Company repaid the PPP Loan in full. There are no continuing obligations under the PPP Loan as of December 31, 2020.

Net Loss Per Common Share

Net Loss Per Common Share	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Net Loss Per Common Share	Net Loss Per Common Share Net loss per common share is calculated using two methods: basic and diluted. Basic Net Loss Per Common Share Basic net loss per common share is calculated as net loss available to common shareholders divided by weighted average common shares outstanding. Net loss available to common shareholders is calculated as net loss less (i) dividends accumulated on the Company’s Convertible preferred stock Series B during the period, (ii) periodic amortization of beneficial conversion feature, and (iii) periodic accretion of the increasing-rate dividend feature. The following table provides a reconciliation of Net loss to Net loss available to common shareholders and calculation of basic net loss per common share for each of the years ended December 31, 2020, 2019, and 2018 (amounts in thousands, except share and per share amounts): Year ended December 31, 2020 2019 2018 Net loss $ (49,284) $ (25,580) $ (29,979) Adjustments to reconcile to net loss available to common stockholders: Accumulated dividend on Series B Convertible Preferred Stock 2,016 — — Amortization of beneficial conversion feature 31,110 — — Accretion of increasing-rate dividend feature 918 — — Total adjustments 34,044 — — Net loss available to common stockholders $ (83,328) $ (25,580) $ (29,979) Weighted average common shares outstanding 108,257,112 106,946,384 105,596,256 Basic net loss per common share $ (0.77) $ (0.24) $ (0.28) Diluted Net Loss Per Common Share Diluted loss per common share is calculated as net loss available to common shareholders, adjusted for dividends on convertible preferred stock (to the extent conversions of such shares would be dilutive), divided by weighted average common shares outstanding plus potential common shares. Potential common shares considers incremental shares resulting from certain transactions, including the exercise of stock options and the issuance of restricted stock using the treasury stock method, as well as the hypothetical conversion of the Company’s Series B Preferred Stock using the if-converted method. The treasury stock method assumes that proceeds from the transaction are used to purchase common stock at the average market price throughout the period. The if-converted method adds back dividends accrued or deemed on the Company’s Series B Convertible Preferred Stock and assumes conversion as of the later of the beginning of the period or the original transaction date, to the extent that such effects are determined to be dilutive. Each individual transaction is assessed for its dilutive effect on net loss per common share. To the extent that the transaction is antidilutive, or does not reduce net loss per common share, the effect is excluded from the calculation. The following table sets forth the computation of basic and diluted net loss per common share (in thousands, except share and per-share data): Year ended December 31, 2020 2019 2018 Net loss available to common stockholders $ (83,328) $ (25,580) $ (29,979) Dividends on Series B Convertible Preferred Stock 34,044 — — Numerator - net loss available to common stockholders adjusted for hypothetical conversion of Series B Convertible Preferred Stock (a) $ (83,328) $ (25,580) $ (29,979) Denominator - weighted average common shares outstanding adjusted for potential common shares (b) 108,257,112 106,946,384 105,596,256 Diluted net loss per common share $ (0.77) $ (0.24) $ (0.28) (a) Diluted net loss per common share is not adjusted for dividends of $34.0 million on the Series B Convertible Preferred Stock because the effect of a hypothetical conversion was determined to be anti-dilutive. (b) Weighted average common shares outstanding for the calculation of diluted net loss per common share does not include the following adjustments for potential common shares below because their effects were determined to be anti-dilutive for the periods presented: Year ended December 31, 2020 2019 2018 Convertible preferred stock Series B 12,987,013 — — Restricted stock awards 1,299,770 1,157,563 365,978 Outstanding stock options 752,499 978,243 3,172,943 Restricted stock unit awards 616,141 — — Performance stock unit awards 31,621 — — Potential common shares 15,687,044 2,135,806 3,538,921

Equity

Equity	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Equity	Equity Convertible Preferred Stock Series B On July 2, 2020, the Company issued shares of its Convertible preferred stock Series B, par value $0.001 per share (the “ Series B Preferred Stock ”) to an affiliate of EW Healthcare Partners and to certain funds managed by Hayfin (individually, the “ Holder ”, collectively the “ Holders ”) pursuant to a Securities Purchase Agreement with Falcon Fund 2 Holding Company, L.P., an affiliate of EW Healthcare Partners, and certain funds managed by Hayfin, dated as of June 30, 2020 (the “ Securities Purchase Agreement ”), for an aggregate purchase price of $100 million (the “ Preferred Stock Transaction ”). The Series B Preferred Stock accumulates a 4.0% cumulative dividend per annum prior to the quarterly dividend payment for the period ending June 30, 2021, and a 6.0% cumulative dividend per annum thereafter. Dividends are declared at the sole discretion of the Company’s board of directors. Dividends are paid at the end of each quarter based for dividend amounts that accumulate beginning on the last payment date through the day prior to the end of each quarter. In lieu of paying a dividend, the Company may elect to accrue the dividend owed to shareholders. Accrued dividend balances accumulate dividends at the prevailing dividend rate for each dividend period for which they are outstanding. Each share of Series B Preferred Stock, including any accrued and unpaid dividends, is convertible into Company’s common stock at any time at the option of the Holder at a conversion price of $3.85 per common share, or 259.74 common shares for each Series B Preferred Share prior to any accrued and unpaid dividends. The Series B Preferred Stock, including any accrued and unpaid dividends, automatically converts into common stock at any time after the third anniversary of the issuance date, provided that the common stock has traded at 200% or more of the conversion price (i) for 20 out of 30 consecutive trading days and (ii) on such date of conversion. Holders of the Series B Preferred Stock, voting as a class, are entitled to appoint two members to the board of directors. Holders of the Series B Preferred Stock are entitled to vote on all matters to be voted on by the Company’s shareholders shall vote on an as-converted basis as a single class with the Common Stock not to exceed 19.9% of the total voting stock of the Company. Holders of the Series B Preferred Stock are also entitled to a liquidation preference in an amount equal to the original issue price plus all accrued and unpaid dividends in the event of a liquidation, dissolution, or winding-up of the Company. The Company evaluated its Series B Preferred Stock and determined that it was considered an equity host under ASC 815, Derivatives and Hedging . As a result of the Company’s conclusion that the Series B Preferred Stock represented an equity host, the conversion feature of all Series B Preferred Stock was considered to be clearly and closely related to the associated Series B Preferred Stock host instrument. Accordingly, the conversion feature of all Series B Preferred Stock was not considered an embedded derivative that required bifurcation. At the time of the issuance of the Series B Preferred Stock, the Company’s common stock, into which the Company’s Series B Preferred Stock is convertible, had an estimated fair value exceeding the effective conversion price of the Series B Preferred Stock, giving rise to a beneficial conversion feature in the amount of $31.1 million. This amount was immediately recognized as a deemed dividend on the commitment date since there is no stated redemption date and the Series B Preferred Stock is immediately convertible. The Series B Preferred Stock instrument contains an increasing-rate cumulative dividend feature. The Company determined the present value of the difference between the (1) dividends that will be payable, in the period preceding commencement of the perpetual dividend; and (2) the perpetual dividend amount for a corresponding number of periods to ascribe a fair value to this feature. These amounts were discounted to present value using a market rate for dividend yield as of the Closing Date. The Company calculated the amount of the increasing-rate dividend feature as $1.8 million. This amount is amortized as a deemed dividend to preferred shareholders using the effective interest method through the commencement date of the Perpetual Dividend Rate. During the year ended December 31, 2020, the Company recognized $0.9 million of deemed dividends related to the amortization of the increasing-rate dividend feature. If the Company undergoes a change of control, the Company will have the option to repurchase some or all of the then-outstanding shares of Series B Preferred Stock for cash in an amount equal to the liquidation preference, subject to the rights of the Holders of the Series B Preferred Stock in connection with such change in control. If the Company does not exercise such repurchase right, Holders of the Series B Preferred Stock will have the option to (1) require the Company to repurchase any or all of its then-outstanding shares of Series B Preferred Stock for cash in an amount equal to the liquidation preference or (2) convert the Series B Preferred Stock, including accrued and unpaid dividends into common stock and receive its pro rata consideration thereunder. Because the contingent redemption of the Series B Preferred Stock by the holder in the event of change in control is outside the Company’s control, the Series B Preferred Stock and related beneficial conversion feature were classified as temporary equity. The below table illustrates changes in the Company’s balance of Convertible preferred stock Series B for the year ended December 31, 2020 (in thousands, except per share amounts): Convertible preferred stock Series B Shares Amount Balance at December 31, 2019 — $ — Issuance of Series B Preferred Stock 100,000 59,540 Deemed dividends — 32,028 Balance at December 31, 2020 100,000 $ 91,568 The Company has not declared or paid any dividends on the Series B Convertible Preferred Stock since issuance. Dividends in arrears as of December 31, 2020 was $2.0 million. As this amount has not been declared, the Company has not recorded this amount on its consolidated balance sheet as of December 31, 2020. Based on accumulated dividends as of December 31, 2020, the Series B Convertible Preferred Stock was convertible into an aggregate of 26,497,570 shares of the Company’s common stock. Stock Incentive Plans The Company has two share-based compensation plans which provide for the granting of equity awards, including qualified incentive and non-qualified stock options, stock appreciation awards and restricted Common Stock awards: the MiMedx Group, Inc. 2016 Equity and Cash Incentive Plan Amended and Restated through October 2, 2020 (the “ 2016 Plan ”), which was approved by shareholders on May 18, 2016 and the MiMedx Group, Inc. Assumed 2006 Stock Incentive Plan (the “ Prior Incentive Plan ”). During the years ended December 31, 2020, 2019, and 2018 the Company used only the 2016 Plan to make grants. The 2016 Plan permits the grant of equity awards to the Company’s employees, directors, consultants and advisors for up to 8,400,000 share s o f the Company’s common stock plus (i) the number of shares of the Company’s common stock that remain available for issuance under the Prior Incentive Plan, and (ii) the number of shares that are represented by outstanding awards that later become available because of the expiration or forfeiture of the award without the issuance of the underlying shares. The awards are subject to a vesting schedule as set forth in each individual agreement. Option awards are generally granted with an exercise price equal to the market price of the Company’s stock at the date of grant, and those option awards generally vest based on three years of continuous service and have 10-year contractual terms. Restricted stock awards generally vest over three years. Certain option and restricted stock awards provide for accelerated vesting if there is a change in control or upon death or disability. A summary of stock option activity for the year ended December 31, 2020, and changes during the year then ended are presented below: Number of Weighted- Weighted- Aggregate Outstanding at January 1, 2020 2,885,334 $ 4.42 Granted — — Exercised (508,300) 2.62 Unvested options forfeited — — Vested options expired (351,351) 5.90 Outstanding at December 31, 2020 2,025,683 4.62 2.10 9,054,128 Exercisable at December 31, 2020 2,025,683 $ 4.62 2.10 $ 9,054,128 The intrinsic values of the options exercised during the years ended December 31, 2020, 2019 and 2018 were $1.9 million, $0.6 million, and $7.9 million, respectively. Cash received from option exercise under all share-based payment arrangements for the years ended December 31, 2020, 2019 and 2018 was $0.4 million, $0.1 million, and $3.6 million, respectively. The actual tax benefit for the tax deductions from option exercise of the share-based payment arrangements totaled $1.6 million, $0.2 million, and $5.9 million, respectively, for the years ended December 31, 2020, 2019 and 2018. The Company has a policy of using its available repurchased treasury stock to satisfy option exercises. The fair value of options vested during the years ended December 31, 2020, 2019 and 2018 were $0, $1.4 million, and $0.1 million, respectively. There were no options granted during the years ended December 31, 2020, 2019 and 2018 and there was no unrecognized compensation expense at December 31, 2020. Modification of Stock Options During the year ended December 31, 2019, On June 13, 2019, our Board of Directors (prior to the election or appointment of any of the Company’s current non-executive Board members), in its capacity as Administrator of the 2006 Plan, extended the contractual life of 612,000 fully vested share options held by 7 members of the Board and 278,916 fully vested share options held by a former employee. As a result of that modification, the Company recognized incremental share-based compensation expense of $0.4 million for the year ended December 31, 2019. The incremental fair value of the modified options in 2020 was estimated on the modification date using the Black-Scholes option-pricing model that uses assumptions for expected volatility, expected dividends, expected term, and the risk-free interest rate. Expected volatilities were the blend of the Company’s historical stock price volatility as well as that of market comparable publicly traded peer companies and other factors estimated over the expected term of the options. The term of the modified options was the remaining time until the end of the contractual maturity of ten years. The risk-free rate was based on the U.S. Treasury yield curve in effect at the time of modification for the period of the expected term. 2019 Option Modification Expected volatility 65% - 95% Expected life (in years) 0.28 - 5.12 Expected dividend yield 0 Risk-free interest rate 1.56% - 2.02% Restricted Stock Awards The Company has issued several classes of restricted stock awards to employees: restricted stock (“ RSAs ”), restricted stock unit awards (“ RSUs ”), and performance stock unit awards (“ PSUs ”). The following is summary information for restricted stock awards for the year ended December 31, 2020. Restricted stock and RSUs vest over a one As of December 31, 2020, there was approximately $11.5 million of total unrecognized stock-based compensation related to unvested restricted stock awards. That expense is expected to be recognized over a weighted-average period of 1.99 years, which approximates the remaining vesting period of these grants. All RSAs noted below as unvested are considered issued and outstanding at December 31, 2020, while unvested RSAs and PSUs are not considered issued and outstanding as of December 31, 2020. RSA RSU PSU Number of Weighted-Average Grant Date Number of Weighted-Average Grant Date Number of Weighted-Average Grant Date Unvested at January 1, 2020 3,383,196 $ 5.13 — $ — 140,845 $ 7.10 Modification of prior year grants — — 271,184 5.90 — — Granted 599,728 6.33 2,432,654 5.90 25,422 5.90 Vested (1,416,888) 6.18 (271,184) 5.90 (87,370) 6.87 Forfeited (390,177) 5.11 (107,381) 5.90 (43,685) 6.87 Unvested at December 31, 2020 2,175,859 $ 4.78 2,325,273 $ 5.90 35,212 $ 7.10 The total fair value of restricted stock awards vested during the years ended December 31, 2020, 2019 and 2018 , was $10.1 million, $5.2 million, and $17.9 million, respectively. During the year ended December 31, 2019, the Company granted a fixed dollar value restricted share unit award to the members of its Board in the amount of $1.6 million. The restricted share unit awards vested at the date of the 2019 Annual Meeting and were settled in common stock with the number of shares of common stock based on the closing price of the Company’s share price on August 5, 2020, a date thirty days after the Company became current on its SEC filings. Upon this event, these awards were modified from a fixed dollar-amount of awards to be settled in a variable number of shares to a fixed number of shares based on the closing price of the Company’s common stock on August 5, 2020. This event constituted a modification of the awards from liability-based awards to equity-based awards and did not change the total amount of expense recognized. Prior to August 5, 2020, the Company recorded $1.3 million of expense, of which $0.9 million and $0.4 million were recognized during the years ended December 31, 2020 and 2019, respectively. The Company reclassified $1.3 million of recorded liability to additional paid-in capital to reflect this modification on August 5, 2020. Subsequent to the modification, $0.3 million of expense was recognized as additional paid-in capital. For the years ended December 31, 2020, 2019, and 2018 the Company recognized share-based compensation as follows (in thousands): Years Ended December 31, 2020 2019 2018 Cost of sales $ 520 $ 477 $ 705 Research and development 288 265 584 Selling, general and administrative 14,549 11,322 13,479 Total share-based compensation 15,357 12,064 14,768 Income tax benefit (3,792) $ (3,081) $ (3,803) Total share-based compensation, net of tax benefit $ 11,565 $ 8,983 $ 10,965 Treasury Stock For the year ended December 31, 2018, the Company purchased 507,600 shares of its Common Stock under the Company’s share repurchase program, for an aggregate purchase price of approximately $7.6 million. The share repurchase program expired during the year ended December 31, 2018. Repurchases of shares of Common Stock in connection with the satisfaction of employee tax withholding obligations upon vesting of restricted stock and exercise of stock options for the years ended December 31, 2020, 2019, and 2018 were 435,492, 429,918, and 614,123, respectively, for an aggregate purchase price of $2.3 million, $1.5 million, and $4.9 million, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes On March 27, 2020, the U.S. government enacted the CARES Act which, among other changes, eliminated the taxable income limit for certain net operating losses (“ NOL ”), allowed businesses to carry back NOLs arising in 2018, 2019, and 2020 to the five prior years, and provided a payment delay of employer payroll taxes during 2020 after the date of enactment. These provisions allowed the Company to carry back federal tax losses related to 2018 and 2019. The Company recorded net tax receivable totaling $11.3 million in 2020 related to these provisions, of which $1.2 million has been collected as of December 31, 2020. The remaining $10.1 million is reflected in income tax receivable on the consolidated balance sheet as of December 31, 2020. The Company has deferred payment on $2.2 million in employer taxes until 2021, which is included as part of accrued compensation on the consolidated balance sheet as of December 31, 2020. Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands): December 31, 2020 2019 Deferred Tax Assets: Net operating loss $ 17,010 $ 14,350 Research and development and other tax credits 5,920 2,349 Share-based compensation 3,259 3,439 Interest limitation carryforward 2,992 839 Accrued expenses 2,918 3,759 Accrued settlement costs 2,464 3,276 Bad debts 2,138 4,859 Lease obligation 1,021 1,044 Sales return and allowances 170 659 Other 1,075 1,285 Deferred Tax Liabilities: Prepaid expenses (1,170) (1,189) Property and equipment (1,073) (1,582) Right of use asset (895) (868) Intangible assets (160) (389) Deferred costs of goods sold (43) (322) Unearned insurance refund — (894) Net Deferred Tax Assets 35,626 30,615 Less: Valuation allowance (35,626) (30,615) Net Deferred Tax Assets after Valuation Allowance $ — $ — Interest limitation carryforward of $0.8 million was included as part of other in 2019. This amount is presented separately in the table above for comparative purposes. The reconciliation of the federal statutory income tax rate of 21% to the effective rate is as follows: Year ended December 31, 2020 2019 2018 Federal statutory rate 21.00 % 21.00 % 21.00 % State taxes, net of federal benefit (0.20) % (1.36) % 3.52 % Nondeductible compensation (0.89) % (1.49) % (15.33) % Meals and entertainment (0.50) % (2.04) % (24.16) % Share-based compensation (1.24) % (5.05) % 10.82 % Tax credits 0.32 % 0.45 % 19.75 % Uncertain tax positions 0.24 % 1.22 % (2.35) % Write-off of net operating losses — % — % (11.81) % Fixed asset adjustment — % — % 5.33 % NOL carryback rate differential 10.99 % — % — % Other (1.66) % 0.12 % (1.03) % Valuation allowance (8.14) % (12.83) % (788.33) % Effective tax rate 19.92 % 0.02 % (782.59) % The tax benefit associated with the carryback of federal net operating losses under the CARES Act had a significant impact on the Company’s effective tax rate for the year ended December 31, 2020. Additionally, the effective tax rate was affected by other permanent differences, as well as the change in the valuation allowance. Share-based Compensation had a significant impact on the Company's effective tax rate for the year ended December 31, 2019. Additionally, state taxes, Meals and Entertainment, and Nondeductible Compensation had a significant impact on the Company's effective tax rate. Meals and Entertainment had a significant impact on the Company's effective tax rate for the year ended December 31, 2018 due to the impact of the Act on the Company's method of calculating this permanent adjustment. Additionally, Federal and state tax credits, mostly related to the Company's Research and Development activities, had a significant impact on the Company's effective rate. Current and deferred income tax (benefit) expense is as follows (in thousands): December 31, 2020 2019 2018 Current: Federal $ (12,418) $ (53) $ 614 State 159 48 427 Total current (12,259) (5) 1,041 Deferred: Federal — — 19,452 State — — 6,089 Total deferred — — 25,541 Total (benefit) expense $ (12,259) $ (5) $ 26,582 Certain items of income and expense are not reported in tax returns and financial statements in the same year. The tax effect of such temporary differences is reported as deferred income taxes. The measurement of deferred tax assets is reduced, if necessary, by the amount of any tax benefit that, based on available evidence, is not expected to be realized. The Company establishes a valuation allowance for deferred tax assets for which realization is not likely. As of each reporting date, management considers new evidence, both positive and negative, that could affect its view of the future realization of deferred tax assets. A valuation allowance of $35.6 million and $30.6 million was recorded against the deferred tax asset balance as of December 31, 2020 and December 31, 2019, respectively. The Company maintains a full valuation allowance because it is not more likely than not the deferred tax assets will be utilized based on all available positive and negative evidence. In the event that the weight of the evidence changes in the future, any reduction in the valuation allowance would result in an income tax benefit. At December 31, 2020 and 2019, the Company had income tax net operating loss (“ NOL ”) carryforwards for federal and state purposes of $62.7 million and $68.5 million and $56.8 million and $49.3 million, respectively. A portion of the Company’s NOLs and tax credits are subject to annual limitations due to ownership change limitations provided by Internal Revenue Code Section 382. If not utilized, the federal and state tax NOL carryforwards will expire between 2027 and 2037. As of December 31, 2020, the Company has recorded a deferred tax asset for both federal and state NOL carryforwards of approximately $13.2 million and $4.0 million, respectively. As of December 31, 2019, the Company has recorded a deferred tax asset for federal and state NOL carryforwards of $11.9 million and approximately $3.1 million, respectively. The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands) included in other liabilities in the consolidated balance sheets: 2020 2019 2018 Unrecognized tax benefits - January 1 $ 627 $ 938 $ 847 Gross increases - tax positions in current period — 56 91 Decreases in prior year positions (150) (367) — Unrecognized tax benefits - December 31 $ 477 $ 627 $ 938 Included in the balance of unrecognized tax benefits as of December 31, 2020 and December 31, 2019, are $0 and $0.6 million, respectively, of tax benefits that, if recognized, would affect the effective tax rate. The Company recognizes accrued interest related to unrecognized tax benefits and penalties as income tax expense. Related to the unrecognized tax benefits noted above, the Company accrued $0 of interest during 2020. The Company accrued $0.1 million of interest during 2019 and, in total, as of December 31, 2019 had recognized $0.1 million of interest. The Company accrued $0.1 million of interest during 2018, and, in total, as of December 31, 2018 had recognized $0.1 million of interest. The Company is subject to taxation in the U.S. and various state jurisdictions. As of December 31, 2020, the Company’s tax returns for 2017 through 2019 generally remain open for exam by taxing jurisdictions. Additional prior years may be open to the extent attributes are being carried forward to an open tax year.

Supplemental Disclosure of Cash

Supplemental Disclosure of Cash Flow and Non-Cash Investing and Financing Activities	12 Months Ended
	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Supplemental Disclosure of Cash Flow and Non-Cash Investing and Financing Activities	Supplemental Disclosure of Cash Flow and Non-Cash Investing and Financing Activities Selected cash payments, receipts, and noncash activities are as follows (in thousands): Years Ended December 31, 2020 2019 2018 Cash paid for interest $ 7,456 $ 4,331 $ 197 Income taxes paid 208 308 859 Cash paid for operating leases 1,569 1,650 — Non-cash activities: Purchases of equipment included in accounts payable 1,062 1,184 1,168 Deferred financing costs 53 6,650 — Deemed dividends on convertible preferred stock Series B 32,028 — — Amendment fee on BT Term Loan 722 — — Lease right of use asset and liability 1,169 — — Fair value of non-cash consideration received for option exercise 922 — —

401(k) Plan

401(k) Plan	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
401(k) Plan	401(k) Plan The Company has a 401(k) plan (the “ 401(k) Plan

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Contractual Commitments In addition to the leases noted under Note 5, “ Leases ,” the Company has commitments for meeting space. These leases expire over 3 years following December 31, 2020, and generally contain renewal options. The Company anticipates that most of these leases will be renewed or replaced upon expiration. The estimated meeting space commitments are as follows (in thousands): Years Ended December 31, 2021 $ 169 2022 889 2023 — $ 1,058 See Note 5, “ Leases” for further information regarding maturities of operating lease liabilities. Litigation and Regulatory Matters In the ordinary course of business, the Company and its subsidiaries may routinely be a party to many pending and threatened legal, regulatory, and governmental actions and proceedings (including those described below). In view of the inherent difficulty of predicting the outcome of such matters, particularly where the plaintiffs or claimants seek very large or indeterminate damages or where the matters present novel legal theories or involve a large number of parties, the Company generally cannot predict what the eventual outcome of the pending matters will be, what the timing of the ultimate resolution of these matters will be, or what the eventual recovery, loss, fines or penalties related to each pending matter may be. In accordance with applicable accounting guidance, the Company accrues a liability when those matters present loss contingencies that are both probably and estimable. The Company's financial statements at December 31, 2020 reflect the Company's current best estimate of probable losses associated with these matters, including costs to comply with various settlement agreements, where applicable. As of December 31, 2020, the Company had accrued $10.0 million related to the matters described below. The Company paid $7.4 million to settle legal proceedings during 2020. In addition, $3.5 million was paid on the Company’s behalf through an insurance provider during 2020. As of December 31, 2019, the Company had accrued $12.8 million related to legal proceedings and other matters of litigation. The actual costs of resolving these matters may be in excess of the amounts reserved. The following is a description of certain litigation and regulatory matters: Securities Class Action On January 16, 2019, the United States District Court for the Northern District of Georgia entered an order consolidating two purported securities class actions (MacPhee v. MiMedx Group, Inc., et al. filed February 23, 2018 and Kline v. MiMedx Group, Inc., et al. filed February 26, 2018). The order also appointed Carpenters Pension Fund of Illinois as lead plaintiff. On May 1, 2019, the lead plaintiff filed a consolidated amended complaint, naming as defendants the Company, Michael J. Senken, Parker H. Petit, William C. Taylor, Christopher M. Cashman and Cherry Bekaert & Holland LLP. The amended complaint (the “Securities Class Action Complaint”) alleged violations of Section 10(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), Rule 10b-5 promulgated thereunder and Section 20(a) of the Exchange Act. It asserted a class period of March 7, 2013 through June 29, 2018. Following the filing of motions to dismiss by the various defendants, the lead plaintiff was granted leave to file an amended complaint. The lead plaintiff filed its amended complaint against the Company, Michael Senken, Pete Petit, William Taylor, and Cherry Bekaert & Holland (Christopher Cashman was dropped as a defendant) on March 30, 2020. The Defendants filed motions to dismiss on May 29, 2020, which remain pending. At this time, given the uncertainty of litigation, the preliminary stage of the case, and the legal standards that must be met for, among other things, class certification and success on the merits, the Company is unable to predict the outcome of the securities class action described above. In the event of an adverse judgment or material settlement with respect to the securities class actions described above, the Company may be required to pay significant damages or settlement costs. Successful claims brought against the Company with respect to the securities class action in excess of its available insurance coverage could have a material adverse effect on its business, financial condition and results of operations. Shareholder Derivative Suits On December 6, 2018, the United States District Court for the Northern District of Georgia entered an order consolidating three shareholder derivative actions ( Evans v. Petit, et al. filed September 25, 2018, Georgalas v. Petit, et al. filed September 27, 2018, and Roloson v. Petit, et al. filed October 22, 2018) that had been filed in the Northern District of Georgia. On January 22, 2019, plaintiffs filed a verified consolidated shareholder derivative complaint. The consolidated action sets forth claims of breach of fiduciary duty, corporate waste and unjust enrichment against certain former officers, and certain current and former directors, of the Company: Parker H. Petit, William C. Taylor, Michael J. Senken, John E. Cranston, Alexandra O. Haden, Joseph G. Bleser, J. Terry Dewberry, Charles R. Evans, Larry W. Papasan, Luis A. Aguilar, Bruce L. Hack, Charles E. Koob, Neil S. Yeston and Christopher M. Cashman. The allegations generally involve claims that the defendants breached their fiduciary duties by causing or allowing the Company to misrepresent its financial statements as a result of improper revenue recognition. The Company filed a motion to stay on February 18, 2019, pending the completion of the investigation by the Company’s Special Litigation Committee. The Special Litigation Committee completed its investigation relating to this action and filed an executive summary of its findings with the Court on July 1, 2019. The parties (together with parties from the Hialeah derivative lawsuit, the Nix and Demaio derivative lawsuit, and the Murphy derivative lawsuit, each described below) held a mediation on February 11, 2020. Following continued discussions, on May 1, 2020, the parties notified the Court that plaintiffs and the Company had reached an agreement in principle to settle this consolidated derivative action, which settlement also encompasses all claims asserted in the Hialeah derivative lawsuit, the Nix and Demaio derivative lawsuit, and the Murphy derivative lawsuit. The hearing on final approval was held on December 21, 2020 and the Court entered an Order granting final approval of the settlement the same day. On October 29, 2018, the City of Hialeah Employees Retirement System (“ Hialeah ”) filed a shareholder derivative complaint in the Circuit Court for the Second Judicial Circuit in and for Leon County, Florida (the “ Florida Court ”). The complaint alleges claims for breaches of fiduciary duty and unjust enrichment against certain former officers, and certain current and former directors, of the Company: Parker H. Petit, William C. Taylor, Michael J. Senken, John E. Cranston, Alexandra O. Haden, Joseph G. Bleser, J. Terry Dewberry, Charles R. Evans, Bruce L. Hack, Charles E. Koob, Larry W. Papasan, and Neil S. Yeston. The allegations generally involve claims that the defendants breached their fiduciary duties by causing or allowing the Company to misrepresent its financial statements as a result of improper revenue recognition. The Company moved to stay the action on February 7, 2019, to allow the prior-filed consolidated derivative action in the Northern District of Georgia to be resolved first and to allow the Company’s Special Litigation Committee time to complete its investigation. The Company also filed a motion to dismiss on April 8, 2019. As discussed above, the plaintiff participated in the mediation that took place in connection with the prior-filed consolidated derivative action in the Northern District of Georgia and is a party to the agreement settling that consolidated derivative action. In accordance with the terms of the settlement, Hialeah filed a motion for leave to dismiss its derivative action with prejudice on January 4, 2021. On May 15, 2019, two individuals purporting to be shareholders of the Company filed a shareholder derivative complaint in the Superior Court for Cobb County, Georgia. ( Nix and Demaio v. Evans, et al. ) The complaint alleges claims for breaches of fiduciary duty, corporate waste and unjust enrichment against certain current and former directors and officers of the Company: Parker H. Petit, William C. Taylor, Michael J. Senken, John E. Cranston, Alexandra O. Haden, Chris Cashman, Lou Roselli, Mark Diaz, Charles R. Evans, Luis A. Aguilar, Joseph G. Bleser, J. Terry Dewberry, Bruce L. Hack, Charles E. Koob, Larry W. Papasan and Neil S. Yeston. The allegations generally involve claims that the defendants breached their fiduciary duties by causing or allowing the Company to misrepresent its financial statements as a result of improper revenue recognition. The Court ordered this matter stayed pending the resolution of the consolidated derivative suit pending in the Northern District of Georgia. As discussed above, the plaintiffs participated in the mediation that took place in connection with the prior-filed consolidated derivative action in the Northern District of Georgia and are a party to the agreement settling that consolidated derivative action. In accordance with the terms of the settlement, plaintiffs filed a notice of settlement and voluntary dismissal with prejudice on January 13, 2021. On August 12, 2019, John Murphy filed a shareholder derivative complaint in the United States District Court for the Southern District of Florida ( Murphy v. Petit, et al. ). The complaint alleged claims for breaches of fiduciary duty and unjust enrichment against certain former officers, and certain current and former directors, of the Company: Parker H. Petit, William C. Taylor, Michael J. Senken, John E. Cranston, Alexandra O. Haden, Charles R. Evans, Luis A. Aguilar, Joseph G. Bleser, J. Terry Dewberry, Bruce L. Hack, Charles E. Koob, Larry W. Papasan and Neil S. Yeston. The allegations generally involve claims that the defendants breached their fiduciary duties by causing or allowing the Company to misrepresent its financial statements as a result of improper revenue recognition. The Company filed a motion to transfer this action to the Northern District of Georgia. Prior to resolution of that motion, the plaintiff voluntarily dismissed this action without prejudice. As discussed above, the plaintiff participated in the mediation that took place in connection with the prior-filed consolidated derivative action in the Northern District of Georgia and is a party to the agreement settling that consolidated derivative action. Pursuant to the terms of the settlement, this action is deemed dismissed with prejudice. Investigations United States Attorney’s Office for the Southern District of New York (“ USAO-SDNY ”) Investigation The USAO-SDNY conducted an investigation into, among other things, the Company’s recognition of revenue and practices with certain distributors and customers. The USAO-SDNY conducted interviews of various individuals, including employees and former employees of the Company. The USAO-SDNY issued an indictment in November 2019 against former executives Messrs. Petit and Taylor charging them with one count each for (i) securities fraud and (ii) conspiracy to commit securities fraud, to make false filings with the SEC, and to influence improperly the conduct of audits relating to alleged misconduct that resulted in inflated revenue figures for fiscal 2015. On November 19, 2020, the jury found Mr. Petit guilty of securities fraud and Mr. Taylor guilty of conspiracy to commit securities fraud. The Company has cooperated with the investigation, and the USAO-SDNY recently advised the Company that, based on the USAO-SDNY’s current understanding of facts, it does not intend to pursue further action or remedies against the Company. Department of Veterans’ Affairs Office of Inspector General (“ VA-OIG ”) and Civil Division of the Department of Justice (“ DOJ-Civil ”) Subpoenas and/or Investigations VA-OIG has issued subpoenas to the Company seeking, among other things, information concerning the Company’s financial relationships with VA clinicians. DOJ-Civil has requested similar information. The Company has cooperated fully and produced responsive information to VA-OIG and DOJ-Civil. Periodically, VA-OIG has requested additional documents and information regarding payments to individual VA clinicians. On June 3, 2020, the Company received a subpoena from the VA-OIG requesting information regarding the Company’s financial relationships and interactions with two healthcare providers at the VA Long Beach Healthcare System. The Company has continued to cooperate and respond to these requests. United States Attorney’s Office for the Middle District of North Carolina (“ USAO-MDNC ”) Investigation On January 9, 2020, the USAO-MDNC informed the Company that it is investigating the Company’s financial relationships with two former clinicians at the Durham VA Medical Center. The Company has cooperated with the investigation and reached an agreement in principal to resolve this issue with the government. On February 8, 2021, the Company received a subpoena issued by the Department of Defense Office of Inspector General seeking records regarding the sales of the Company’s micronized and other products to federal medical facilities and federal contracting offices, including those operated by the Department of Veterans Affairs or the Department of Defense. The subpoena also seeks information regarding the Company’s communications with the FDA regarding its products. The Company understands that the Office of the United States Attorney for the Western District of Washington Civil Division is overseeing the investigation, which is being conducted principally by agents employed by the Department of the Army Criminal Investigation Command. The Company is cooperating with the government’s investigation and at this time the Company is unable to predict the outcome of the investigation, including whether the investigation will result in any action or proceeding against us. Qui Tam Actions On January 19, 2017, a former employee of the Company filed a qui tam False Claims Act complaint in the United States District Court for the District of South Carolina ( United States of America, ex rel. Jon Vitale v. MiMedx Group, Inc. ) alleging that the Company’s donations to the patient assistance program, Patient Access Network Foundation, violated the Anti-Kickback Statute and resulted in submission of false claims to the government. The government declined to intervene and the complaint was unsealed on August 10, 2018. The Company filed a motion to dismiss on October 1, 2018. The Company’s motion to dismiss was granted in part and denied in part on May 15, 2019. The parties have reached an agreement to resolve this matter. On January 20, 2017, two former employees of the Company, filed a qui tam False Claims Act complaint in the United States District Court for the District of Minnesota ( Kruchoski et. al. v. MiMedx Group, Inc. ). An amended complaint was filed on January 27, 2017. The operative complaint alleges that the Company failed to provide truthful, complete and accurate information about the pricing offered to commercial customers in connection with the Company’s Federal Supply Schedule contract. On May 7, 2019, the Department of Justice (“ DOJ ”) declined to intervene, and the case was unsealed. In April 2020, without admitting the allegations, the Company agreed to pay $6.5 million to the DOJ to resolve this matter. This amount was paid during the year ended December 31, 2020. Accordingly, there is no liability outstanding with respect to this matter as of December 31, 2020. Former Employee Litigation On November 19, 2018, the Company’s former Chief Financial Officer filed a complaint in the Superior Court for Cobb County, Georgia ( Michael J. Senken v. MiMedx Group, Inc. ) in which he claims that the Company has breached its obligations under the Company’s charter and bylaws to advance to him, and indemnify him for, his legal fees and costs that he incurred in connection with certain Company internal investigations and litigation. The Company filed its answer denying the plaintiff’s claims on April 19, 2019. To date, no deadlines have been established by the court. In December 2019, MiMedx received notice of a complaint filed in July 2018 with the Occupational Safety and Health Administration (“OSHA”) section of the Department of Labor (“DOL”) by Thomas Tierney, a former Regional Sales Director, against MiMedx and the referenced individuals, Tierney v. MiMedx Group, Inc., Parker Petit, William Taylor, Christopher Cashman, Thornton Kuntz, Jr. and Alexandra Haden, DOL No. 4-5070-18-243. Mr. Tierney alleged that he was terminated from MiMedx in retaliation for reporting concerns about revenue recognition practices, compliance issues, and the corporate culture, in violation of the anti-retaliation provisions of the Sarbanes-Oxley Act. The parties settled this matter and OSHA dismissed the complaint on May 20, 2020. On January 21, 2019, a former employee filed a complaint in the Fifth Judicial Circuit, Richland County, South Carolina ( Jon Michael Vitale v. MiMedx Group, Inc. et. al. ) against the Company alleging retaliation, defamation and unjust enrichment and seeking monetary damages. The former employee claims he was retaliated against after raising concerns related to insurance fraud and later defamed by comments concerning the indictments of three South Carolina VA employees. On February 19, 2019, the case was removed to the U.S. District Court for the District of South Carolina. The Company filed a motion to dismiss on April 8, 2019, which was denied by the Court. The parties have reached an agreement to resolve this matter. On January 12, 2021, the Company filed suit in the Circuit Court of the Eleventh Judicial District in and for Miami-Dade County, Florida ( MiMedx Group, Inc. v. Petit, et. al. ) against its former CEO, Parker “Pete” Petit, and its former COO, Bill Taylor, seeking a determination of its rights and obligations under indemnification agreements with Petit and Taylor following a federal jury’s guilty verdict against Petit for securities fraud and Taylor for conspiracy to commit securities fraud. The Company is seeking a declaratory judgment that it is not obligated to indemnify or advance expenses to Petit and Taylor in connection with certain cases to which Petit and Taylor are parties and also seeking to recoup moneys previously paid on behalf of Petit and Taylor in connection with such cases. Defamation Claims On June 4, 2018, Sparrow Fund Management, LP (“ Sparrow ”) filed a complaint against the Company and Mr. Petit, including claims for defamation and civil conspiracy in the United States District Court for the Southern District of New York ( Sparrow Fund Management, L.P. v. MiMedx Group, Inc. et. al. ). The complaint seeks monetary damages and injunctive relief and alleges the defendants commenced a campaign to publicly discredit Sparrow by falsely claiming it was a short seller who engaged in illegal and criminal behavior by spreading false information in an attempt to manipulate the price of our common stock. On March 31, 2019, a judge granted defendants’ motions to dismiss in full, but allowed Sparrow the ability to file an amended complaint. The Magistrate has recommended Sparrow’s motion for leave to amend be granted in part and denied in part and the Judge adopted the Magistrate’s recommendation. On April 3, 2020, Sparrow filed its amended complaint against MiMedx (Mr. Petit has been dropped from the lawsuit) , on April 3, 2020 and the Company subsequently filed its answer. This case is in discovery. On June 17, 2019, the principals of Viceroy Research (“ Viceroy ”), filed suit in the Circuit Court for the Seventeenth Judicial Circuit in Broward County, Florida ( Fraser John Perring et. al. v. MiMedx Group, Inc. et. al. ) against the Company and Mr. Petit, alleging defamation and malicious prosecution based on the defendants’ alleged campaign to publicly discredit Viceroy and the lawsuit the Company previously filed against the plaintiffs, but which the Company subsequently dismissed without prejudice. On November 1, 2019, the Court granted Mr. Petit’s motion to dismiss on jurisdictional grounds, denied the Company’s motion to dismiss, and granted plaintiffs leave to file an amended complaint to address the deficiencies in its claims against Mr. Petit, which they did on November 21, 2019. The Company filed its answer on December 20, 2019. The parties have agreed to a stay of this matter in order to hold a mediation in March 2021. Intellectual Property Litigation The NuTech Action On March 2, 2015, the Company filed a patent infringement lawsuit against NuTech Medical, Inc. (“ NuTech ”) and DCI Donor Services, Inc. (“ DCI ”) in the United States District Court for the Northern District of Alabama ( MiMedx Group, Inc. v. NuTech Medical, Inc. et. al. ). The Company has alleged that NuTech and DCI infringed and continue to infringe on the Company’s patents through the manufacture, use, sale and/or offering of their tissue graft product. The Company has also asserted that NuTech knowingly and willfully made false and misleading representations about its products to customers and prospective customers. The Company is seeking permanent injunctive relief and unspecified damages. The case was stayed pending the restatement of the Company’s financial statements. Since the Company has completed its restatement, the case resumed. The parties have reached a settlement in the matter and the case was dismissed with prejudice. The Osiris Action On February 20, 2019, Osiris Therapeutics, Inc. (“ Osiris ”) refiled its trade secret and breach of contract action against the Company (which had been dismissed in a different forum) in the United States District Court for the Northern District of Georgia ( Osiris Therapeutics, Inc. v. MiMedx Group, Inc. ). The parties have reached a settlement in the matter and the case was dismissed with prejudice on October 26, 2020. Other Matters Pursuant to the Florida Business Corporation Act and indemnification agreements with its former Chairman and CEO, Parker H. “Pete” Petit, and former COO, William Taylor, the Company has advanced defense costs to Petit and Taylor in connection with certain legal proceedings arising from their corporate status as former directors and officers of the Company. Following the jury verdict against Petit for securities fraud and Taylor for conspiracy to commit securities fraud, on January 12, 2021, the Company filed suit in the Eleventh Judicial Circuit of Florida in and for Miami-Dade County ( MiMedx Group, Inc. v. Petit and Taylor ) seeking (1) a declaratory judgment that a conviction of Petit and Taylor means the Company has no further obligation to indemnify or advance expenses to them, (2) reimbursement of amounts previously advanced to Petit and Taylor, and (3) any other relief deemed just and proper by the court. Given the inherent difficulty of predicting the outcome of litigation, the Company cannot estimate recoveries, ranges of recoveries, losses or ranges of losses in these proceedings, nor can it predict whether it may be required to continue to indemnify or advance defense costs to Petit and Taylor. In addition to the matters described above, the Company is a party to a variety of other legal matters that arise in the ordinary course of the Company’s business, none of which is deemed to be individually material at this time. Due to the inherent uncertainty of litigation, there can be no assurance that the resolution of any particular claim or proceeding would not have a material adverse effect on the Company’s business, results of operations, financial position or liquidity.

Revenue Data by Customer Type

Revenue Data by Customer Type	12 Months Ended
	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Revenue Data by Customer Type	Revenue Data by Customer Type The Company has two primary distribution channels: (1) direct to customers (healthcare professionals and/or facilities) (“ Direct Customers ”); and (2) sales through distributors (“ Distributors ”). The Company did not have significant foreign operations or a single external customer from which 10% or more of revenues were derived during the years ended December 31, 2020, 2019, and 2018. Below is a summary of net sales by each customer type (in thousands): Year Ended December 31, 2020 2019 2018 Direct Customers $ 240,690 $ 288,800 $ 343,464 Distributors 7,544 10,455 15,647 Total $ 248,234 $ 299,255 $ 359,111

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The Company has employed Thomas Koob as its Chief Scientific Officer (a non-executive officer) since 2006. Thomas Koob is the brother of a former director, Charles Koob. Subsequent to the Company’s employment of Thomas Koob, Charles Koob was appointed as a director of the Company in March 2008. Charles Koob's term as a Director expired at the 2020 Annual Meeting held on November 20, 2020. In 2019, the Company paid Thomas Koob a salary of $0.2 million and provided equity, incentive compensation and other compensation of $0.2 million. In 2020, the Company paid Thomas Koob an annual salary of $0.2 million and provided equity, incentive compensation and other compensation of $0.3 million. The Company employs Simon Ryan, the brother-in-law of the Company’s former General Counsel, Alexandra O. Haden as a sales representative. In 2019, the Company paid Mr. Ryan total compensation of $0.2 million, consisting of a salary of $0.1 million and sales commissions, equity and other compensation of $0.1 million. Ms. Haden resigned from her position as General Counsel and Secretary of the Company, effective August 12, 2019, to accept another position.

Restructuring

Restructuring	12 Months Ended
	Dec. 31, 2020
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring Set forth below are disclosures relating to restructuring initiatives that resulted in material expenses or cash expenditures during the year ended December 31, 2019, and resulted in material restructuring liabilities at December 31, 2019. Employee retention and certain other employee benefit-related costs related to the Company’s restructuring are expensed ratably over an agreed-upon service period. One-time employee separation and related employee benefit costs are generally expensed as incurred. In December 2018, the Company announced a reduction of the Company’s workforce by approximately 240 full-time employees, or 24% of its total workforce, of which approximately half were sales personnel as part of the plans to implement a broad-based organizational realignment, cost reduction and efficiency program to better ensure the Company’s cost structure was appropriate given its revenue expectations. As a result of the December 2018 broad-based organizational realignment, cost reduction and efficiency program, the Company incurred pre-tax charges of $8.5 million and $6.1 million during the years ended December 31, 2019 and 2018, respectively. The charges related to employee retention and other one-time employee separation benefit-related costs. These charges are included in the cost of sales, research and development, and selling, general and administrative expenses in the consolidated statements of operations. The Company’s restructuring program concluded in 2020. All obligations related to the Company’s restructuring program have been settled as of December 31, 2020. The liability related to restructuring activities during 2020 are included in accrued compensation in the consolidated balance sheets. Changes to this liability during the years ended December 31, 2020 were as follows (in thousands): Liability balance as of January 1, 2018 $ — Expenses 6,055 Cash distributions (448) Liability balance as of December 31, 2018 5,607 Expenses 8,543 Cash distributions (10,589) Liability balance as of December 31, 2019 3,561 Expenses — Cash distributions (3,561) Liability balance as of December 31, 2020 $ —

Quarterly Financial Data

Quarterly Financial Data	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data	Quarterly Financial DataThe following table sets forth selected quarterly financial data for 2020 and 2019. Amounts for the fourth quarter of 2020 reflect the recording of out of period adjustments related to certain accruals recorded in prior quarters, including accruals of rebates, which were identified subsequent to the filings of the financial statements for those periods. The reflection of these adjustments increased net sales and gross profit by $0.8 million and decreased net loss by $1.3 million in the fourth quarter. The adjustments decreased basic and diluted net loss per common share in the fourth quarter by $0.01. All identified adjustments exclusively related to 2020 and did not affect any reported amounts for periods prior to 2020. Amounts presented are unaudited, in thousands, except per share amounts: First Quarter Second Quarter Third Quarter (1) Fourth Quarter Net sales 2020 $ 61,736 $ 53,647 $ 64,303 $ 68,548 2019 66,555 67,437 88,863 76,400 Gross profit 2020 51,711 45,449 54,014 57,730 2019 59,137 57,688 75,658 63,691 Income tax provision benefit (expense) 2020 11,304 (27) (38) 1,020 2019 (42) (42) 309 (220) Net (loss) income 2020 (4,821) (8,466) (19,417) (16,580) 2019 (13,273) (17,210) 12,379 (7,476) Net (loss) income per common share - basic 2020 $ (0.04) $ (0.08) $ (0.48) $ (0.17) 2019 $ (0.12) $ (0.16) $ 0.12 $ (0.07) Net (loss) income per common share - diluted 2020 $ (0.04) $ (0.08) $ (0.48) $ (0.17) 2019 $ (0.12) $ (0.16) $ 0.11 $ (0.07)

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsThe Company has assessed subsequent events through March 8, 2021, the date which these consolidated financial statements were first available to be issued. Based on this assessment, there were no material subsequent events requiring disclosure.

Schedule II Valuation and Quali

Schedule II Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule II Valuation and Qualifying Accounts	Schedule II Valuation and Qualifying Accounts MIMEDX GROUP, INC. AND SUBSIDIARIES Years ended December 31, 2020, 2019 and 2018 (in thousands) Balance at Additions charged to Expense or Revenue Deductions Balance at For the Year ended December 31, 2020 Allowance for doubtful accounts $ — $ 719 $ 18 $ 737 Allowance for product returns 4,115 705 (2,499) 2,321 Allowance for obsolescence 719 340 (220) 839 For the Year ended December 31, 2019 Allowance for product returns $ 8,510 $ — $ (4,395) $ 4,115 Allowance for obsolescence 589 1,204 (1,074) 719 For the Year ended December 31, 2018 Allowance for product returns $ 7,362 $ 1,148 $ — $ 8,510 Allowance for obsolescence 768 511 (690) 589

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The consolidated financial statements have been prepared in accordance with generally accepted accounting principles (“ GAAP ”) in the United States of America (“ U.S. ”). Generally accepted accounting principles require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported consolidated statements of operations during the reporting period. Actual results could differ from those estimates. Significant estimates include estimated useful lives and potential impairment of property and equipment, goodwill and intangible assets, estimates of loss for contingent liabilities, estimate of allowance for doubtful accounts, management’s assessment of the Company’s ability to continue as a going concern, estimate of fair value of share-based payments, and valuation of deferred tax assets.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of MiMedx Group, Inc. and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation.
Segment Reporting	Segment Reporting Accounting Standards Codification (“ ASC ”) 280, “ Segment Reporting ” requires the use of the “management approach” model for segment reporting. The management approach model is based on the way a company’s chief operating decision-maker organizes segments within the Company for which separate discrete financial information is available regarding resource allocation and assessing performance. The Company has determined it operates as one operating segment.
Market Concentrations and Credit Risk	Market Concentrations and Credit Risk The Company places its cash and cash equivalents on deposit with U.S.-based financial institutions. The U.S. Federal Deposit Insurance Corporation (“ FDIC
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include cash held at various banks. The Company considers all highly-liquid investments purchased with an original maturity of three months or less at the date of purchase and money market mutual funds to be cash equivalents.
Accounts Receivable and Notes Receivable	Accounts Receivable Accounts receivable represent amounts due from customers for which revenue has been recognized. Generally, the Company does not require collateral or any other security to support its receivables. Bad debt expense and the allowance for doubtful accounts are based on historical trends and current expectations for credit losses. The Company’s policy to reserve for potential bad debts is based on the aging of the individual receivables as well as customer-specific qualitative factors, such as bankruptcy proceedings. The Company manages credit risk by routinely performing credit checks on customers prior to sales. The individual receivables are written-off after all reasonable efforts to collect the funds have been made. Actual write-offs may differ from the amounts reserved.
Inventories	Inventories Inventories are valued at the lower of cost or net realizable value, using the first–in, first-out (“ FIFO ”) method. Inventory is tracked through raw material, work-in-process, and finished goods stages as the product progresses through various production steps and stocking locations. Labor and overhead costs are absorbed through the various production processes up to when the work order closes. Historical yields and normal capacities are utilized in the calculation of production overhead rates. Reserves for inventory obsolescence are utilized to account for slow-moving inventory as well as inventory no longer needed due to diminished demand.
Property and Equipment	Property and Equipment Property and equipment are recorded at cost and depreciated on a straight-line method over their estimated useful lives, principally three
Asset Retirement Obligations	Asset Retirement Obligations The Company records obligations associated with the retirement of tangible long-lived assets and right of use assets and the associated asset retirement costs in accordance with authoritative guidance on asset retirement obligations. The Company reviews legal obligations associated with the retirement of long-lived assets that result from contractual obligations or the acquisition, construction, development and/or normal use of the assets. If it is determined that a legal obligation exists, regardless of whether the obligation is conditional on a future event, the fair value of the liability for an asset retirement obligation is recognized in the period in which it is incurred, if a reasonable estimate of fair value can be made. The fair value is calculated as the estimate of the expected cash outflow to satisfy the legal obligation discounted to present value using the Company’s incremental borrowing rate. At such point in time, an asset and liability are recorded for the amount of the expected liability. The asset amount is depreciated, straight-line over the life of the underlying asset, while the liability is accreted to the amount of the expected outflow through selling, general and administrative expense using the effective interest method.
Impairment of Long-lived Assets	Impairment of Long-lived Assets The Company evaluates the recoverability of its long-lived assets (property, equipment, and intangible assets with finite lives) whenever adverse events or changes in business climate indicate that the expected undiscounted future cash flows from the related assets may be less than their carrying amounts. When a situation determines that it is more likely than not that an asset is not recoverable, the Company estimates cash flows expected to be derived from the continuing use and eventual disposition of the asset. If the sum of those cash flows, not discounted to present value, does not exceed the net book value of the asset, the Company estimates the fair value of the asset. Impairment loss is recorded to the extent that the net book value exceeds the fair value of the asset.
Goodwill and Indefinite-lived Intangible Assets	Goodwill and Indefinite-lived Intangible Assets Goodwill represents the excess of purchase price over the fair value of net assets of acquired businesses. The Company assesses the recoverability of its goodwill at least annually on September 30, or more frequently whenever events or substantive changes in circumstances indicate that it is more likely than not that goodwill is impaired. In performing the goodwill impairment test, the Company assesses qualitative factors to determine the existence of impairment. If the qualitative factors indicate that it is more likely than not that the carrying value of the reporting unit exceeds its fair value, the Company proceeds to a quantitative test to measure the existence and amount of goodwill impairment. The Company may also choose to bypass the qualitative assessment and proceed directly to the quantitative analysis. At present, the Company has one reporting unit. In performing the quantitative test, impairment loss is recorded to the extent that the carrying value of the reporting unit exceeds the assessed fair value of the reporting unit, not to exceed goodwill allocated to that reporting unit. No impairment is recognized if fair value is determined to exceed carrying value. The Company determines the fair value utilizing the income and market approaches. Under the income approach, the fair value of the Company is the present value of its future cash flows. These future cash flows are derived from revenue, cost savings, tax deductions, working capital flows, capital expenditures, and other projected sources and uses of cash. Value indications are developed by discounting expected cash flows to their present value at a risk-adjusted weighted average cost of capital using the capitalization of market comparable companies. The weighted average cost of capital is rooted in the risk-free rate of a U.S. Treasury with a similar maturity to the time period evaluated, credit risk specific to the Company, relevant equity risk premia, the incremental borrowing rate for the Company, and the prevailing marginal income tax rate. Under the market approach, the Company uses its market capitalization, which is calculated by taking the Company’s share price times the number of outstanding common shares plus the value of Convertible preferred stock Series B outstanding. The Company’s estimates associated with the goodwill impairment test are considered critical due to the amount of goodwill recorded on its consolidated balance sheets and the judgment required in determining fair value, including projected future cash flows. Acquired indefinite-lived intangible assets are tested for impairment annually on September 30 or whenever events or changes in circumstances indicate that the carrying amount of an intangible asset may not be recoverable. The Company’s impairment reviews are based on an estimated future cash flow approach that requires significant judgment with respect to future revenue and expense growth estimates. The Company uses estimates consistent with business plans and a market participant view of the assets being evaluated. Actual results may differ from the estimates used in these analyses. For the goodwill impairment test performed on September 30, 2020, the Company performed a quantitative test for its reporting unit, concluding that the fair value exceeded the carrying value. Therefore, no goodwill impairment was recognized related to this test.
Patent Costs	Patent CostsThe Company incurs certain legal and related costs in connection with patent applications for tissue-based products and processes. The Company capitalizes such costs to be amortized over the expected life of the patent to the extent that an economic benefit is anticipated from the resulting patent or alternative future use is available to the Company.
Lease Obligations	Lease Obligations The Company determines if a contract is, or contains, a lease at inception. Right of use assets and the related liabilities resulting from operating leases were included in Right of use asset, Other current liabilities, and Other liabilities, respectively, in the consolidated balance sheets as of December 31, 2020 and 2019. Operating lease assets represent the Company's right to use an underlying asset for the lease term and lease liabilities represent the Company's obligation to make lease payments arising from the lease. Operating lease assets and liabilities are recognized at the lease commencement date based on the estimated present value of lease payments over the lease term. Since most of the Company’s leases do not have a readily determinable implicit discount rate, the Company uses its incremental borrowing rate to calculate the present value of lease payments determined using the rate of interest that the Company would have to pay on collateralized or secured borrowing over a similar term. Variable components of the lease payments such as fair market value adjustments, utilities, and maintenance costs are expensed as incurred and not included in determining the present value of lease liabilities. The lease term and applicable payments include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. As an accounting policy election, the Company does not capitalize leases having initial terms of 12 months or fewer. Lease expense is recognized on a straight-line basis over the lease term. The Company has made an accounting policy election not to separate lease components from non-lease components in the event that the agreement contains both. The Company continues to account for leases in financial statements prior to January 1, 2019 under ASC 840. See Note 5, “ Leases” for further information regarding lease obligations.
Contingencies	Contingencies The Company is or has been subject to various patent challenges, product liability claims, government investigations, former employee matters, and other legal proceedings, see Note 14, “ Commitments and Contingencies .” Legal fees and other expenses related to litigation are expensed as incurred and included in selling, general and administrative expenses in the consolidated statements of operations. The Company records an accrual for legal settlements and other contingencies in the consolidated financial statements when the Company determines that a loss is both probable and reasonably estimable. The Company discloses all ongoing legal matters for which a loss is probable, regardless of whether an estimate can be reasonably determined. Due to the fact that legal proceedings and other contingencies are inherently unpredictable, the Company’s estimates of the probability and amount of any such liabilities involve significant judgment regarding future events. The actual costs of resolving a claim may be substantially different from the amount of reserve the Company recorded. The Company records a receivable from its product liability insurance carriers only when the resolution of any dispute has been reached and realization of the amounts equal to the potential claim for recovery is considered probable. Any recovery of an amount in excess of the related recorded contingent loss will be recognized only when all contingencies relating to recovery have been resolved.
Revenue Recognition	Revenue Recognition Current Policy The Company sells its products primarily to individual customers and independent distributors (collectively referred to as “ customers ”). Customers obtain and use products either through ship and bill sales or consignment arrangements. Under ship and bill arrangements, the Company retains possession of the product until the customer submits an order. Upon approval of the sales order, the Company ships product to the customer and invoices them for the product sold. Under consignment arrangements, the customer takes possession of the product, but the Company retains title until the implantation, or application of the Company’s product to the end user. Subsequent to the Transition (as defined below) and including all of the year ended December 31, 2020, the Company recognizes revenue as performance obligations are fulfilled; which occurs upon the shipment of product to the customers for ship and bill orders or upon implantation for consignment sales. Revenue is recognized based on the consideration the Company expects to receive from the sale. This consists of the gross selling price of the product, less any discounts or rebates (collectively, “ deductions ” or “ sales deductions ”). Gross selling price is a standard set by the Company for all customers unless a contract governing the sale provides for a specified price. Sales deductions are specified in individual contracts with customers and generally achieved based on total sales during a specified period. The Company estimates the total sales deductions which a specific customer will achieve over the relevant term and applies the reduction to sales as they are made throughout the period. Rebates owed to customers are accrued and recorded in accrued expenses on the consolidated balance sheets. The Company acts as the principal in all of its customer arrangements and therefore records revenue on a gross basis. Shipping is considered immaterial in the context of the overall customer arrangement, and damages or loss of goods in transit are rare. Therefore, shipping is not deemed a separately recognized performance obligation and the Company has elected to treat shipping costs as activities to fulfill the promise to transfer the product. The Company maintains a returns policy that allows its customers to return product that is consigned, damaged or non-conforming, ordered in error, or due to a recall. The estimate of the provision for returns is based upon historical experience with actual returns given consideration to any changes in historical periods presented. The Company’s payment terms for customers are typically 30 to 60 days from receipt of title of the goods. In addition to the above revenue recognition policy, the Company recognizes revenue associated with the Remaining Contracts (as defined below) upon cash receipt. The Remaining Contracts represent contracts for which all of the criteria necessary for revenue recognition were not met at the time of shipment and that such criteria would not be met until ultimate collection of such sales. A summary of amounts collected and recorded as net sales for the years ended December 31, 2020 and 2019, as well as amounts still outstanding as of those dates, are as follows (amounts in thousands): Amounts Invoiced and Not Collected Deferred Cost of Sales Amounts as of September 30, 2019 $ 48,883 $ 6,415 Revenue recognized related to amounts invoiced and not collected at September 30, 2019: Transition Adjustment during the three months ended September 30, 2019 (21,385) (2,565) Cash collected during the three months ended December 31, 2019 related to the Remaining Contracts (8,219) (1,151) (29,604) (3,716) Write-off of customer contracts where collection is no longer reasonably assured (a) (10,273) (1,438) Amounts as of December 31, 2019 9,006 1,261 Cash collected during the year ended December 31, 2020 related to the Remaining Contracts (7,767) (1,087) Amounts as of December 31, 2020 $ 1,239 $ 174 (a) The Company determined that for approximately $10.3 million of existing contracts where payment had not been received, collection was no longer reasonably assured. As a result, $1.4 million of deferred cost of sales relating to these customers was written off. Any future collections relating to these customer contracts will be recorded as revenue at the time payment is received. Previous Revenue Recognition Policy and Transition In 2018, and into part of 2019, the Company’s control environment was such that it created uncertainty surrounding all of its customer arrangements, which required consideration related to the proper revenue recognition under the applicable literature. The control environment allowed for the existence of extra-contractual or undocumented terms or arrangements initiated by or agreed to by the Company and former members of Company management at the outset of the transactions (side agreements). Concessions were also agreed to subsequent to the initial sale (e.g. sales above established customer credit limits extended and unusually long payment terms, return or exchange rights, and contingent payment obligations) that called into question the ability to recognize revenue at the time that product was shipped to a customer. The applicable revenue recognition guidance also changed beginning January 1, 2018, which further impacted the Company’s revenue recognition methodology. The Company changed its pattern of revenue recognition effective October 1, 2019. As a result, the Company’s pattern of revenue recognition varies between the years ended December 31, 2020, 2019, and 2018. The application of the relevant revenue recognition guidance and the pattern of revenue recognition are further discussed below for each period presented. Fiscal Year Ended December 31, 2018 The Company adopted ASC Topic 606, Revenue from Contracts with Customers (“ ASC 606 ”) , on January 1, 2018 by using the modified retrospective method. ASC 606 establishes principles for reporting information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the entity's contracts to provide goods or services to customers. The core principle requires an entity to recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration that it expects to be entitled to receive in exchange for those goods or services recognized as performance obligations are satisfied. The Company assessed the impact of the ASC 606 guidance by reviewing customer contracts and accounting policies and practices to identify differences, including identification of the contract and the evaluation of the Company’s performance obligations, transaction price, customer payments, transfer of control and principal versus agent considerations. ASC 606 establishes a five-step model for revenue recognition. The first of these steps requires the identification of the contract as described in ASC 606-10-25-1. The specific criteria (the “ Step 1 Criteria ”) to this determination are as follows: • The parties to the contract have approved the contract (in writing, orally, or in accordance with other customary business practices) and are committed to perform their respective obligations; • The entity can identify each party’s rights regarding the goods or services to be transferred; • The entity can identify the payment terms for the goods or services to be transferred; • The contract has commercial substance; and • It is probable that the entity will collect substantially all of the consideration to which it will be entitled in exchange for the goods or services that will be transferred to the customer. The Company concluded that the first three of the above criteria were not met upon shipment of product to the customer, the fourth criteria had been met and the Company acknowledges that there is a degree of uncertainty as to whether last criteria above had been met. Although the parties to the contract may have approved the contract and purchase orders in writing, the Company concluded that upon shipment of products to the customer there was not sufficient evidence that its customers were committed to perform their obligations defined in the contract due to the existence of extra-contractual or undocumented terms or arrangements (e.g., regarding payment terms, right of return, etc.). The Company could not reliably identify each party’s rights regarding the products to be transferred upon shipment of those products to customers. The Company’s sales personnel continued to make side agreements with customers which directly conflicted with the explicitly stated terms of sale. These side agreements created significant ambiguity around the rights and obligations of both parties involved in the transaction. This practice continued to result in extended payment terms and returns occurring long after the original sale was made. The Company’s business practices created an implied right for the customer to demand future, unknown, performance by the Company. As a result, each party (and, in particular, the Company) could not at the time of product shipment adequately determine its rights regarding the good transferred as required by ASC 606-10-25-1. Upon shipment of product to the customer, the Company could not reliably identify the payment terms for the products it sold to customers. Although the written payment terms were known to both parties, the Company’s pervasive business practices (e.g., informal and undocumented side agreements) overrode the written payment terms and often resulted in extensions of the terms for payment. The Company’s contracts did appear to have commercial substance (i.e., the risk, timing, or amount of the Company’s future cash flows was expected to change as a result of the contract) upon fulfillment of a purchase order, as most fulfillments have eventually resulted in the Company receiving cash. Therefore, the Company concluded that this criterion appears to be met upon shipment of product to customers (i.e., fulfillment of the purchase order). The probability that the Company would collect the consideration to which it was entitled in exchange for products shipped to the customer was questionable. In evaluating whether the collectibility of an amount of consideration was probable, the Company considered the customer’s ability and intention to pay that amount of consideration when it was due. Historically, the customers’ intention to pay amounts when due was uncertain in light of the conflicting messages customers received with respect to the payment terms and rights of return and lack of adherence to credit limits. The assessment in ASC 606 is based on whether the customer has the ability and intention to pay for the product being delivered by the Company. Assessment of a customer’s ability to pay is typically done through a credit check process and the establishment of a credit limit for each customer by the Company’s accounts receivable team. Although the Company did have a process in place to establish credit limits, the evidence previously mentioned indicates that those credit limits were routinely overridden by certain sales personnel and members of management. Despite these overrides, the Company recovered the majority of its billings made in 2018. Furthermore, the quantitative and qualitative evidence gathered by the Company raised considerable doubt as to the collectibility of its billings at the time of shipment, but this evidence was not persuasive enough for the Company to conclude that collectibility was not probable. As a result of the considerations outlined above, the Company determined that it did not meet the criteria necessary for its revenue arrangements to qualify as “contracts” under the requirements of ASC 606 (i.e., these arrangements did not pass the Step 1 Criteria of the revenue recognition model). The Company’s inability to fulfill these criteria was due to uncertainties of contractual adjustments with customers created by a combination of an inappropriate tone at the top and extra-contractual arrangements. Consequently, as of the date of the Company’s adoption of ASC 606 effective January 1, 2018 and for the remainder of the year ended December 31, 2018, the Company concluded that it did not meet the Step 1 Criteria upon physical delivery of the product. Subsequent to the delivery of product, uncertainties surrounding contractual adjustment were not resolved until either: (1) the customer returned the product prior to payment; or (2) the Company received payment from the customer. At that point, the Company determined that an accounting contract existed and the performance obligations of the Company to deliver product and the customer to pay for the product were satisfied. The Company determined the transaction price of its contracts to equal the amount of consideration received from customers less the amount expected to be refunded or credited to customers, which is recognized as a refund liability that is updated at the end of each reporting period for changes in circumstances. The refund liability was included within accrued expenses in the consolidated balance sheet as of December 31, 2018. The Company considered how to account for costs associated with the delivered products of the contract for which revenue has been deferred, which is whether to match the related costs of sales expense with revenue or recognize expense upon shipment. In making this assessment, the Company considered the financial viability of its distributors and customers based on their creditworthiness to determine if collectibility of amounts sufficient to realize the costs of the products shipped was reasonably assured at the time of shipment. As the Company determined that there was a probable economic benefit associated with sales transactions, the Company deferred the cost of sales until the revenue was recognized for the year ended December 31, 2018. The Company also continued to offset deferred revenue with the associated accounts receivable obligations in connection with the sales of products to its customers. The amount shipped and billed but not recorded as revenue was $51.0 million for the year ended December 31, 2018. Fiscal Year Ended December 31, 2019 and Transition The Company continued to assess contracts, new and existing, throughout 2019 to determine if the Step 1 Criteria noted above for the determination of a contract under ASC 606 were met for new contracts at the outset of a sales transaction (i.e., upon shipment of product) or for existing contracts at some point within 2019 when all the terms of the arrangement would have been known. Until it was determined if the Step 1 Criteria had been met, revenue recognition continued to be deferred consistent with the assessment for the year ended December 31, 2018. As further discussed above, the primary factors contributing to the determination in prior periods that the Step 1 Criteria had not been met were the inappropriate tone at the top and the existence of pervasive extra-contractual or undocumented terms or arrangements. These prior business practices and the lack of transparency surrounding them created a systemically implied right for customers to demand future, unknown, performance by the Company. Although some of the former executives were employed by the Company only through June 2018, the Company determined that based on the impact of the prior tone at the top, the continued internal sales force strategy and the existing customer base’s continued expectations (based on past practice), there would be flexibility with respect to arrangement terms even after delivery of the product so pervasive that all customer arrangements continued to be subject to uncertain modification of terms into 2019. After identifying the primary factors contributing to the lack of knowledge regarding its customer contractual terms, the Company began implementing changes in mid-2018 to remediate the pervasive weaknesses in the control environment, followed by gradually implementing measures to empower its compliance, legal, and accounting departments, educating its sales force on appropriate business practices, and communicating its revised terms of sale to customers. The Company assessed its efforts throughout 2019 to determine when, if at any point, the factors contributing to the inability to satisfy the Step 1 Criteria were sufficiently addressed such that the Step 1 Criteria were met at the time of physical delivery to the customer. Determining when these conditions were effectively satisfied was a matter of judgment; however, the Company determined that adequate knowledge of the contractual arrangements with its customers did exist in 2019 for new and certain existing arrangements. Management did note that there is no single, definitive change that overcame the pervasive challenges noted above, but rather an accumulation of efforts that, taken together, resulted in sufficient knowledge of contractual relationships both internally within the Company and externally with its customers. To address the tone at the top issues, the Company noted that proper remediation involved not only the removal of members of management who were setting an inappropriate tone but also the establishment of new management throughout the organization who emphasized a commitment to integrity, ethical values and transparency and have that reinforcement for a sustained period of time. The changes made to management positions throughout the organization and the resulting organization behavior changes were assessed to have been sufficiently addressed by mid-2019. To determine when the Company had either eliminated or had sufficient knowledge to identify any extra-contractual arrangements, the Company noted that a key factor contributing to its historical lack of visibility into the arrangements with its customers was the failure to adhere to credit limits, payment terms and return policies. The establishment of additional controls and the emphasis on adherence to the Company’s existing policies and controls was an iterative process that continued through the first two quarters of 2019. Additional factors contributing to the increased visibility into its contractual arrangements involved further education and training of the sales personnel regarding the Company’s terms and conditions as well as monitoring of the sales personnel and customers for compliance with the contractual arrangements. The Company implemented a disciplined approach to educating the sales personnel regarding the prior practices that were considered unacceptable, ensuring they were knowledgeable regarding current terms and conditions and implementing an open dialogue with the credit and collections department. Monitoring of the customer base was accomplished through a variety of measures including, but not limited to, analysis of payments made within the original terms, levels of returns post-shipment, and various continued communication with the customer account representatives by members of the Company’s credit and collections department. During the third quarter of 2019, management determined that these efforts with the sales personnel and the external customers had been in place for a sufficient period of time to provide the customers an understanding of the Company’s contractual arrangements with them. Therefore, beginning October 1, 2019, for all new customer arrangements, the Company determined adequate measures were in place to understand the terms of its contracts with customers. As such, beginning October 1, 2019, the Company concluded that the Step 1 Criteria would be met prior to shipment of product to the customer or implantation of the products on consignment. The Company also reassessed whether the Step 1 Criteria had been met for all shipments of products where payment had not been received as of September 30, 2019. While the measures summarized above provided significant evidence necessary to understand the terms of the Company’s contractual arrangements with its customers, certain of these customers continued to exhibit behaviors that resulted in extended periods until cash collection. Such delays in collection suggested that uncertainty regarding extra-contractual arrangements may continue, particularly as it relates to payment terms. As a result, the Company concluded the following for any existing arrangements, which remained unpaid at September 30, 2019: • For customer arrangements where collection was considered probable within 90 days from the date of original shipment or implantation of the products, the Company concluded the Step 1 Criteria were met (the “ Transition Adjustment ”). • For the remaining customer arrangements (the “ Remaining Contracts ”), the Company concluded that, due to the uncertainty that extra-contractual arrangements may continue, the Step 1 Criteria would not be satisfied until the Company receives payment from the customer. At that point, the Company determined that an accounting contract would exist and the performance obligations of the Company to deliver product and the customer to pay for the product would be satisfied. The Company continued to reassess the Remaining Contracts for settlement of the Step 1 Criteria prior to payment, concluding that the Step 1 Criteria continued to not be met due to the same circumstances described above. The Company continued to record the deferred costs of sales on the arrangements that failed the Step 1 Criteria where collectibility was reasonably assured and will recognize the costs when the related revenue is recognized. The Company also continued to offset deferred revenue with the associated accounts receivable obligations for these arrangements that continued to fail the Step 1 Criteria. For all customer transactions concluded to meet the Step 1 Criteria, the Company then assessed the remaining criteria of ASC 606 to determine the proper timing of revenue recognition. Under ASC 606, the Company recognizes revenue following the five-step model: (i) identify the contracts with a customer (the Step 1 Criteria); (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. As noted above, beginning October 1, 2019, the Company determined that they had met the Step 1 Criteria for new customer arrangements. The Company has determined that the performance obligation was met upon delivery of the product to the customer, or at the time the product is implanted for products on consignment, at which point the Company determined it will collect the consideration it is entitled to in exchange for the product transferred to the customer. As a result, the Company recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied, generally upon shipment of the product to the customer or upon implantation of the product to the end user. The nature of the Company’s contracts gives rise to certain types of variable consideration, including rebates and other discounts. The Company includes estimated amounts of variable consideration in the transaction price to the extent that it is probable there will not be a significant reversal of revenue. Estimates are based on historical or anticipated performance. The Company does have consignment agreements with several customers and distributors which allow the Company to better market its products by moving them closer to the end user. In these cases, the Company determined that it has fulfilled its performance obligation once control of the product has been delivered to the customer, which occurs simultaneously with the product being implanted. GPO Fees The Company sells to Group Purchasing Organization (“ GPO ”) members who transact directly with the Company at GPO-agreed pricing. GPOs are funded by administrative fees that are paid by the Company. These fees are set as a percentage of the purchase volume, which is typically 3% of sales made to the GPO members. Upon adoption of ASC 606, the Company concluded that although it benefited from the access that a GPO provides to its members, this benefit was neither distinct from other promises in the Company’s contracts with GPOs nor was the benefit separable from the sale of goods by the Company to the end customer. Therefore, the Company presents fees paid to GPOs as a reduction of product revenues. Cost of Sales Cost of sales includes all costs directly related to bringing the Company’s products to their final selling destination. Amounts include direct and indirect costs to manufacture products including raw materials, personnel costs and direct overhead expenses necessary to convert collected tissues into finished goods, product testing costs, quality assurance costs, facility costs associated with the Company’s manufacturing and warehouse facilities, including depreciation, freight charges, costs to operate equipment and other shipping and handling costs for products shipped to customers. The Company obtains raw material in the form of human placenta donations from participating mothers who give birth via scheduled Caesarean section. Prior to the Transition, the Company deferred the cost of sales from transactions where title to inventory transferred from the Company to the customer, but for which all revenue recognition criteria have not yet been met. Once all revenue recognition criteria are met, the revenue and associated cost of sales was recognized.
Research and Development Costs	Research and Development Costs Research and development costs consist of direct and indirect costs associated with the development of the Company’s technologies. These costs are expensed as incurred.
Advertising Expense	Advertising expenseAdvertising expense consists primarily of print media promotional materials. Advertising costs are expensed as incurred.
Income Taxes	Income Taxes Income tax provision benefit (expense), deferred tax assets and liabilities, and liabilities for unrecognized tax benefits reflect management’s best assessment of estimated current and future taxes to be paid. The Company is subject to income taxes in the United States, including numerous state jurisdictions. Deferred income taxes arise from temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements, which will result in taxable or deductible amounts in the future. The Company recognizes deferred tax assets to the extent that it believes these assets are more likely than not to be realized. If the Company determines that it would be able to realize its deferred tax assets in the future in excess of their net recorded amount, the Company would make an adjustment to the deferred tax asset valuation allowance. In evaluating the Company’s ability to recover its deferred tax assets within the jurisdiction from which they arise, management considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax-planning strategies, results of recent operations, and changes in tax laws. In projecting future taxable income, the Company begins with historical results and incorporates assumptions about the amount of future state and federal pretax operating income adjusted for items that do not have tax consequences. The assumptions about future taxable income require significant judgment and are consistent with the plans and estimates the Company uses to manage the underlying businesses. In evaluating the objective evidence that historical results provide, management considers three years of cumulative income (loss). The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined on the basis of the differences between the financial statement and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in the tax provision (benefit) in the period that includes the enactment date. The calculation of income tax liabilities involves dealing with uncertainties in the application of complex tax laws and regulations both for U.S. federal income tax purposes and across numerous state jurisdictions. ASC Topic 740 (“ ASC 740 ”) states that a tax benefit from an uncertain tax position may be recognized when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes, on the basis of the technical merits. The Company (1) records unrecognized tax benefits as liabilities in accordance with ASC 740 included within other liabilities on the consolidated balance sheets, and (2) adjusts these liabilities when management’s judgment changes as a result of the evaluation of new information not previously available. Because of the complexity of some of these uncertainties, the ultimate resolution may result in a payment that is materially different from management’s current estimate of the unrecognized tax benefit liabilities. These differences will be reflected as increases or decreases to the deferred tax asset or income tax expense in the period in which new information is available. The Company records uncertain tax positions in accordance with ASC 740 on the basis of a two-step process whereby (1) it determines whether it is more likely than not that the tax positions will be sustained on the basis of the technical merits of the position, and (2) for those tax positions that meet the more-likely-than-not recognition threshold, it recognizes the largest amount of tax benefit that is more than 50 percent likely to be realized upon ultimate settlement with the related tax authority. The Company recognizes interest and penalties related to unrecognized tax benefits within the income tax expense line in the consolidated statements of operations. Accrued interest and penalties, if any, are included within the related deferred tax liability line in the consolidated balance sheets and recorded as a component of income tax expense.
Share-based Compensation	Share-based Compensation The Company grants share-based awards to employees and members of the Company’s Board of Directors (the “ Board ”) and non-employee consultants. Awards to employees and the Board are generally made annually as well as at certain points of time throughout the year at the discretion of the Board. Awards to non-employee consultants are rare, occurring most recently in February 2018. Such awards are recognized as share-based payment expense over the requisite service or vesting period, to the extent such awards are expected to vest in accordance with FASB ASC Topic 718 “ Compensation—Stock Compensation. ” The amount of expense to be recognized is determined by the fair value of the award using inputs available as of the grant date. The fair value of restricted common stock is the value of common stock on the grant date. The fair value of stock option grants is estimated using the Black-Scholes option pricing model. Use of the valuation model requires management to make certain assumptions with respect to selected model inputs. The Company uses the simplified method for share-based compensation to estimate the expected term. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for the estimated option expected term. The Company estimates volatility using a blend of its own historical stock price volatility as well as that of market-comparable publicly-traded peer companies. The Company routinely reviews its calculation of volatility for potential changes in future volatility, the Company’s life cycle, its peer group, and other factors. Finally, the Company uses an expected dividend yield of zero; the Company does not pay cash dividends on its common stock and does not expect to pay any cash dividends on its common stock in the foreseeable future. For awards with service-based vesting conditions only, the Company recognizes share-based compensation expense on a straight-line basis over the requisite service or vesting period. For awards with service- and performance-based vesting conditions, the Company recognizes stock-based compensation expense using the graded vesting method over the requisite service period beginning in the period in which the awards are deemed probable to vest, to the extent such awards are probable to vest. The Company recognizes the cumulative effect of changes in the probability outcomes in the period in which the changes occur.
Basic and Diluted Net Loss per Common Share	Basic and Diluted Net Loss per Common Share Basic net loss per common share is calculated as net loss available to common stockholders divided by weighted average common shares outstanding for the applicable period. Net loss available to common stockholders is determined by adjusting net loss for preferred dividends accrued or deemed during the period. This amount is divided by the weighted average common shares outstanding during the period. Diluted net loss per common share adjusts basic net loss per common share for convertible securities, options, restricted stock unit awards, and other share-based payment awards which have yet to vest, to the extent such adjustments reduce basic net loss per common share. The dilutive effect of the Company’s Series B Convertible Preferred Stock, and other convertible securities to the extent they are outstanding, is determined based on the if-converted method. The if-converted method assumes that convertible securities are converted at the later of the issuance date or the beginning of the period. If the hypothetical conversion of convertible securities, and the consequential avoidance of any deemed or accumulated preferred dividends, would decrease basic net loss per common share, these effects are incorporated in the calculation of diluted net loss per common share, adjusted for the proportion of the period the securities were outstanding. The dilutive effect of outstanding options, restricted stock unit awards, and other share-based payments is derived using the treasury stock method. The treasury stock method assumes that the proceeds from exercise are used to repurchase common shares at the weighted average market price during the period, increasing the denominator for the net effect of shares issued upon exercise less hypothetical shares repurchased.
Fair Value of Financial Instruments and Fair Value Measurements	Fair Value of Financial Instruments and Fair Value Measurements The respective carrying value of certain on-balance sheet financial instruments approximated their fair values due to the short-term nature and type of these instruments. These financial instruments include cash and cash equivalents, accounts receivable, notes receivable, and certain other financial assets and liabilities. The Company measures certain non-financial assets at fair value on a non-recurring basis. These non-recurring valuations include evaluating assets such as long-lived assets, and non-amortizing intangible assets for impairment, allocating value to assets in an acquired asset group, and accounting for business combinations. The Company uses the fair value measurement framework to value these assets and reports these fair values in the periods in which they are recorded or written down. Fair value financial instruments are recorded in accordance with the fair value measurement framework. The fair value measurement framework includes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair values in their broad levels. These levels from highest to lowest priority are as follows: • Level 1: Quoted prices (unadjusted) in active markets that are accessible at the measurement date for identical assets or liabilities; • Level 2: Quoted prices in active markets for similar assets or liabilities or observable prices that are based on inputs not quoted on active markets, but corroborated by market data. • Level 3: Unobservable inputs or valuation techniques that are used when little or no market data is available. The determination of fair value and the assessment of a measurement’s placement within the hierarchy require judgment. Level 3 valuations often involve a higher degree of judgment and complexity. Level 3 valuations may require the use of various cost, market, or income valuation methodologies applied to unobservable management estimates and assumptions. Management’s assumptions could vary depending on the asset or liability valued and the valuation method used. Such assumptions could include: estimates of prices, earnings, costs, actions of market participants, market factors, or the weighting of various valuation methods. The Company may also engage external advisors to assist it in determining fair value, as appropriate. Although the Company believes that the recorded fair value of its financial instruments is appropriate, these fair values may not be indicative of net realizable value or reflective of future fair values.
Recently Adopted and Issued Accounting Pronouncements	Recently Adopted Accounting Pronouncements In June 2016, the FASB issued ASU 2016-13, “ Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ,” that introduces a new model for recognizing credit losses on financial instruments based on an estimate of current expected credit losses. This includes accounts receivable, trade receivables, loans, held-to-maturity debt securities, net investments in leases and certain off-balance sheet credit exposures. The guidance also modifies the impairment model for available-for-sale debt securities. This ASU is effective for the Company and all public filers which do not qualify as smaller reporting companies for fiscal years beginning after December 15, 2019. The Company adopted this ASU on January 1, 2020 using a modified retrospective transition method which requires a cumulative-effect adjustment to the opening balance of retained earnings to be recognized on the date of adoption with no change to financial results reported in prior periods. The Company adopted this ASU on January 1, 2020 using a modified retrospective transition method which requires a cumulative-effect adjustment to the opening balance of retained earnings to be recognized on the date of adoption, with no change to the financial results reported in prior periods. There was no impact on the Company’s consolidated financial statements upon adoption of this ASU. Recently Issued Accounting Pronouncements Not Yet Adopted In August 2020, the FASB issued ASU 2020-06, “ Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity ,” which simplifies and clarifies certain calculation and presentation matters related to convertible equity and debt instruments. Specifically, ASU 2020-06 removes requirements to separately account for conversion features as a derivative under ASC Topic 815 and removing the requirement to account for beneficial conversion features on such instruments. Accounting Standards Update 2020-06 also provides clearer guidance surrounding disclosure of such instruments and provides specific guidance for how such instruments are to be incorporated in the calculation of Diluted EPS. The guidance under ASU 2020-06 is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020. The Company will adopt this standard using a modified retrospective approach effective January 1, 2021. The Company does not expect a material impact on the consolidated financial statements as a result of adoption. All other ASUs issued and not yet effective as of December 31, 2020, and through the date of this report, were assessed and determined to be either not applicable or are expected to have minimal impact on the Company’s current or future financial position or results of operations.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Assessment of revenue under ASC 606	A summary of amounts collected and recorded as net sales for the years ended December 31, 2020 and 2019, as well as amounts still outstanding as of those dates, are as follows (amounts in thousands): Amounts Invoiced and Not Collected Deferred Cost of Sales Amounts as of September 30, 2019 $ 48,883 $ 6,415 Revenue recognized related to amounts invoiced and not collected at September 30, 2019: Transition Adjustment during the three months ended September 30, 2019 (21,385) (2,565) Cash collected during the three months ended December 31, 2019 related to the Remaining Contracts (8,219) (1,151) (29,604) (3,716) Write-off of customer contracts where collection is no longer reasonably assured (a) (10,273) (1,438) Amounts as of December 31, 2019 9,006 1,261 Cash collected during the year ended December 31, 2020 related to the Remaining Contracts (7,767) (1,087) Amounts as of December 31, 2020 $ 1,239 $ 174 (a) The Company determined that for approximately $10.3 million of existing contracts where payment had not been received, collection was no longer reasonably assured. As a result, $1.4 million of deferred cost of sales relating to these customers was written off. Any future collections relating to these customer contracts will be recorded as revenue at the time payment is received.

Inventory (Tables)

Inventory (Tables)	12 Months Ended
	Dec. 31, 2020
Inventory Disclosure [Abstract]
Inventory	Inventory consists of the following (in thousands): December 31, 2020 2019 Raw materials $ 328 $ 318 Work in process 4,543 4,299 Finished goods 6,329 5,206 Inventory, gross 11,200 9,823 Reserve for obsolescence (839) (719) Inventory, net $ 10,361 $ 9,104

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Property and equipment	Property and equipment consist of the following (in thousands): . December 31, 2020 2019 Leasehold improvements $ 6,010 $ 5,321 Laboratory and clean room equipment 15,524 14,894 Furniture and office equipment 15,295 15,118 Construction in progress 3,321 972 Asset retirement cost 785 — Property and equipment, gross 40,935 36,305 Less accumulated depreciation and amortization (29,498) (23,977) Property and equipment, net of accumulated depreciation $ 11,437 $ 12,328
Schedule of depreciation	Depreciation expense for each of the years ended December 31, 2020, 2019, and 2018 was recorded in certain captions of the consolidated statements of operations for those periods in the amounts shown in the table below (in thousands): Year ended December 31, 2020 2019 2018 Cost of sales $ 2,022 $ 1,965 $ 1,757 Selling, general and administrative expenses 3,416 4,223 3,760 Research and development expenses 344 358 365 Total $ 5,782 $ 6,546 $ 5,882

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Supplemental balance sheet information related to leases	Supplemental balance sheet information related to operating leases is as follows (amounts in thousands, except lease term and discount rate): December 31, 2020 2019 Assets Right of use asset $ 3,623 $ 3,397 Liabilities Short term lease liability 1,176 1,168 Long term lease liability 2,960 2,919 Weighted-average remaining lease term (years) 4.4 years 3.1 years Weighted-average discount rate 10.0 % 11.5 %
Lease costs for operating leases	Information related to lease costs for operating leases are as follows (amounts in thousands): Year ended December 31, 2020 2019 Operating lease cost $ 1,392 $ 1,469 Amortization of leased assets 983 947
Maturities of operating lease liabilities	Maturities of operating lease liabilities are as follows (amounts in thousands): Year ending December 31, Maturities 2021 $ 1,537 2022 1,566 2023 507 2024 339 2025 339 Thereafter 705 Total lease payments 4,993 Less: imputed interest (857) $ 4,136

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in carrying amount of goodwill	The following represents the changes in the carrying amount of goodwill for 2020 and 2019 (in thousands): Goodwill Balance as of January 1, 2019 $ 19,976 Activity — Balance as of December 31, 2019 19,976 Activity — Balance as of December 31, 2020 $ 19,976
Intangible assets activity summary - finite lived	Intangible assets are summarized as follows (in thousands): December 31, 2020 December 31, 2019 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Amortized intangible assets Licenses $ 1,414 $ (1,334) $ 80 $ 1,414 $ (1,200) $ 214 Patents and know-how 9,510 (5,730) 3,780 9,099 (5,070) 4,029 Customer and supplier relationships 241 (172) 69 3,761 (2,417) 1,344 Non-compete agreements 120 (98) 22 120 (68) 52 Total amortized intangible assets $ 11,285 $ (7,334) $ 3,951 $ 14,394 $ (8,755) $ 5,639 Unamortized intangible assets Tradenames and trademarks $ 1,008 $ 1,008 $ 1,008 $ 1,008 Patents in process 1,045 1,045 1,130 1,130 Total intangible assets $ 13,338 $ 6,004 $ 16,532 $ 7,777 Amortization expense for the years ended December 31, 2020, 2019, and 2018, is summarized in the table below (amounts in thousands): Year ended December 31, 2020 2019 2018 Amortization of intangible assets $ 1,073 $ 1,039 $ 1,034 Impairment of intangible assets 1,027 1,258 —
Intangible assets activity summary - indefinite lived	Intangible assets are summarized as follows (in thousands): December 31, 2020 December 31, 2019 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Amortized intangible assets Licenses $ 1,414 $ (1,334) $ 80 $ 1,414 $ (1,200) $ 214 Patents and know-how 9,510 (5,730) 3,780 9,099 (5,070) 4,029 Customer and supplier relationships 241 (172) 69 3,761 (2,417) 1,344 Non-compete agreements 120 (98) 22 120 (68) 52 Total amortized intangible assets $ 11,285 $ (7,334) $ 3,951 $ 14,394 $ (8,755) $ 5,639 Unamortized intangible assets Tradenames and trademarks $ 1,008 $ 1,008 $ 1,008 $ 1,008 Patents in process 1,045 1,045 1,130 1,130 Total intangible assets $ 13,338 $ 6,004 $ 16,532 $ 7,777
Estimated future amortization expense of intangible assets	Expected future amortization of intangible assets as of December 31, 2020, is as follows (in thousands): Estimated Amortization Year ending December 31, Expense 2021 $ 793 2022 691 2023 691 2024 691 2025 279 Thereafter 806 $ 3,951

Accrued Expenses (Tables)

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2020
Payables and Accruals [Abstract]
Accrued expenses	Accrued expenses consist of the following (in thousands): December 31, 2020 2019 Legal costs $ 14,822 $ 12,202 Settlement costs 9,975 12,825 Estimated returns 688 2,581 External commissions 2,141 1,722 Accrued clinical trials 651 1,076 Accrued rebates 886 142 Other 1,297 1,613 Total $ 30,460 $ 32,161

Long Term Debt (Tables)

Long Term Debt (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule of debt issuance costs	The allocation of the deferred financing costs and original issue discount between Term Loan and the DD TL on July 2, 2020 was as follows (amounts in thousands): July 2, 2020 Term Loan DD TL Total Long term debt Other current assets Original issue discount $ 333 $ 167 $ 500 Deferred financing costs 2,169 1,084 3,253
Schedule of debt	The balances of the Term Loan as of December 31, 2020 were as follows (amounts in thousands): December 31, 2020 Outstanding principal $ 50,000 Deferred financing costs (1,996) Original issue discount (307) Long term debt $ 47,697 The balances of the BT Term Loan were as follows (amounts in thousands): December 31, 2019 Current portion Long-term Outstanding principal $ 3,750 $ 69,375 Original issue discount — (1,890) Deferred financing cost — (5,579) Long-term debt $ 3,750 $ 61,906
Schedule of interest expense	Components of interest expense related to the Term Loan, included in interest expense (income), net on the consolidated statements of operations, was as follows (amounts in thousands): Year ended December 31, 2020 Stated interest $ 2,085 Amortization of deferred financing costs 173 Accretion of original issue discount 26 Interest expense $ 2,284 Interest expense related to the DD TL, included in interest (expense) income, net in consolidated statements of operations, was as follows (amounts in thousands): Year ended December 31, 2020 Commitment fee $ 128 Amortization of deferred financing costs 542 Accretion of original issue discount 83 Interest expense $ 753 Interest expense related to the BT Term Loan, included in interest (expense) income, net in the consolidated statements of operations was as follows (amounts in thousands): Year ended December 31, 2020 2019 Interest on principal balance $ 3,773 $ 4,331 Accretion of original issue discount 354 360 Accretion of amendment fee 53 — Amortization of deferred financing costs 1,051 1,071 Total BT Term Loan interest expense $ 5,231 $ 5,762
Future principal payments for the Term Loan	Scheduled principal payments on the Term Loan as of December 31, 2020 are as follows: Year ending December 31, Principal 2021 $ — 2022 — 2023 — 2024 — 2025 50,000 Thereafter — Outstanding principal $ 50,000
Schedule of extinguishment of debt	The composition of the loss on extinguishment of debt was as follows (amounts in thousands): July 2, 2020 Unamortized deferred financing costs $ 4,528 Unamortized original issue discount 1,538 Unamortized amendment fee 671 Prepayment premium 1,439 Other fees 25 Loss on extinguishment of debt $ 8,201

Net Loss Per Common Share (Tabl

Net Loss Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Schedule of earnings per share, basic	The following table provides a reconciliation of Net loss to Net loss available to common shareholders and calculation of basic net loss per common share for each of the years ended December 31, 2020, 2019, and 2018 (amounts in thousands, except share and per share amounts): Year ended December 31, 2020 2019 2018 Net loss $ (49,284) $ (25,580) $ (29,979) Adjustments to reconcile to net loss available to common stockholders: Accumulated dividend on Series B Convertible Preferred Stock 2,016 — — Amortization of beneficial conversion feature 31,110 — — Accretion of increasing-rate dividend feature 918 — — Total adjustments 34,044 — — Net loss available to common stockholders $ (83,328) $ (25,580) $ (29,979) Weighted average common shares outstanding 108,257,112 106,946,384 105,596,256 Basic net loss per common share $ (0.77) $ (0.24) $ (0.28)
Schedule of earnings per share, diluted	The following table sets forth the computation of basic and diluted net loss per common share (in thousands, except share and per-share data): Year ended December 31, 2020 2019 2018 Net loss available to common stockholders $ (83,328) $ (25,580) $ (29,979) Dividends on Series B Convertible Preferred Stock 34,044 — — Numerator - net loss available to common stockholders adjusted for hypothetical conversion of Series B Convertible Preferred Stock (a) $ (83,328) $ (25,580) $ (29,979) Denominator - weighted average common shares outstanding adjusted for potential common shares (b) 108,257,112 106,946,384 105,596,256 Diluted net loss per common share $ (0.77) $ (0.24) $ (0.28) (a) Diluted net loss per common share is not adjusted for dividends of $34.0 million on the Series B Convertible Preferred Stock because the effect of a hypothetical conversion was determined to be anti-dilutive. (b) Weighted average common shares outstanding for the calculation of diluted net loss per common share does not include the following adjustments for potential common shares below because their effects were determined to be anti-dilutive for the periods presented: Year ended December 31, 2020 2019 2018 Convertible preferred stock Series B 12,987,013 — — Restricted stock awards 1,299,770 1,157,563 365,978 Outstanding stock options 752,499 978,243 3,172,943 Restricted stock unit awards 616,141 — — Performance stock unit awards 31,621 — — Potential common shares 15,687,044 2,135,806 3,538,921

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Schedule of series B preferred stock	The below table illustrates changes in the Company’s balance of Convertible preferred stock Series B for the year ended December 31, 2020 (in thousands, except per share amounts): Convertible preferred stock Series B Shares Amount Balance at December 31, 2019 — $ — Issuance of Series B Preferred Stock 100,000 59,540 Deemed dividends — 32,028 Balance at December 31, 2020 100,000 $ 91,568
Stock options activity	A summary of stock option activity for the year ended December 31, 2020, and changes during the year then ended are presented below: Number of Weighted- Weighted- Aggregate Outstanding at January 1, 2020 2,885,334 $ 4.42 Granted — — Exercised (508,300) 2.62 Unvested options forfeited — — Vested options expired (351,351) 5.90 Outstanding at December 31, 2020 2,025,683 4.62 2.10 9,054,128 Exercisable at December 31, 2020 2,025,683 $ 4.62 2.10 $ 9,054,128
Option Modification Assumptions	2019 Option Modification Expected volatility 65% - 95% Expected life (in years) 0.28 - 5.12 Expected dividend yield 0 Risk-free interest rate 1.56% - 2.02%
Restricted stock awards roll forward	The following is summary information for restricted stock awards for the year ended December 31, 2020. Restricted stock and RSUs vest over a one As of December 31, 2020, there was approximately $11.5 million of total unrecognized stock-based compensation related to unvested restricted stock awards. That expense is expected to be recognized over a weighted-average period of 1.99 years, which approximates the remaining vesting period of these grants. All RSAs noted below as unvested are considered issued and outstanding at December 31, 2020, while unvested RSAs and PSUs are not considered issued and outstanding as of December 31, 2020. RSA RSU PSU Number of Weighted-Average Grant Date Number of Weighted-Average Grant Date Number of Weighted-Average Grant Date Unvested at January 1, 2020 3,383,196 $ 5.13 — $ — 140,845 $ 7.10 Modification of prior year grants — — 271,184 5.90 — — Granted 599,728 6.33 2,432,654 5.90 25,422 5.90 Vested (1,416,888) 6.18 (271,184) 5.90 (87,370) 6.87 Forfeited (390,177) 5.11 (107,381) 5.90 (43,685) 6.87 Unvested at December 31, 2020 2,175,859 $ 4.78 2,325,273 $ 5.90 35,212 $ 7.10
Allocation of share-based compensation	For the years ended December 31, 2020, 2019, and 2018 the Company recognized share-based compensation as follows (in thousands): Years Ended December 31, 2020 2019 2018 Cost of sales $ 520 $ 477 $ 705 Research and development 288 265 584 Selling, general and administrative 14,549 11,322 13,479 Total share-based compensation 15,357 12,064 14,768 Income tax benefit (3,792) $ (3,081) $ (3,803) Total share-based compensation, net of tax benefit $ 11,565 $ 8,983 $ 10,965

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Deferred tax assets and liabilities	Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands): December 31, 2020 2019 Deferred Tax Assets: Net operating loss $ 17,010 $ 14,350 Research and development and other tax credits 5,920 2,349 Share-based compensation 3,259 3,439 Interest limitation carryforward 2,992 839 Accrued expenses 2,918 3,759 Accrued settlement costs 2,464 3,276 Bad debts 2,138 4,859 Lease obligation 1,021 1,044 Sales return and allowances 170 659 Other 1,075 1,285 Deferred Tax Liabilities: Prepaid expenses (1,170) (1,189) Property and equipment (1,073) (1,582) Right of use asset (895) (868) Intangible assets (160) (389) Deferred costs of goods sold (43) (322) Unearned insurance refund — (894) Net Deferred Tax Assets 35,626 30,615 Less: Valuation allowance (35,626) (30,615) Net Deferred Tax Assets after Valuation Allowance $ — $ —
Reconciliation of the Federal statutory income tax	The reconciliation of the federal statutory income tax rate of 21% to the effective rate is as follows: Year ended December 31, 2020 2019 2018 Federal statutory rate 21.00 % 21.00 % 21.00 % State taxes, net of federal benefit (0.20) % (1.36) % 3.52 % Nondeductible compensation (0.89) % (1.49) % (15.33) % Meals and entertainment (0.50) % (2.04) % (24.16) % Share-based compensation (1.24) % (5.05) % 10.82 % Tax credits 0.32 % 0.45 % 19.75 % Uncertain tax positions 0.24 % 1.22 % (2.35) % Write-off of net operating losses — % — % (11.81) % Fixed asset adjustment — % — % 5.33 % NOL carryback rate differential 10.99 % — % — % Other (1.66) % 0.12 % (1.03) % Valuation allowance (8.14) % (12.83) % (788.33) % Effective tax rate 19.92 % 0.02 % (782.59) %
Schedule of current and deferred income tax expense (benefit)	Current and deferred income tax (benefit) expense is as follows (in thousands): December 31, 2020 2019 2018 Current: Federal $ (12,418) $ (53) $ 614 State 159 48 427 Total current (12,259) (5) 1,041 Deferred: Federal — — 19,452 State — — 6,089 Total deferred — — 25,541 Total (benefit) expense $ (12,259) $ (5) $ 26,582
Reconciliation of unrecognized tax benefits	The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands) included in other liabilities in the consolidated balance sheets: 2020 2019 2018 Unrecognized tax benefits - January 1 $ 627 $ 938 $ 847 Gross increases - tax positions in current period — 56 91 Decreases in prior year positions (150) (367) — Unrecognized tax benefits - December 31 $ 477 $ 627 $ 938

Supplemental Disclosure of Ca_2

Supplemental Disclosure of Cash Flow and Non-Cash Investing and Financing Activities (Tables)	12 Months Ended
	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Supplemental disclosure of cash flow and non-cash investing and financing activities	Selected cash payments, receipts, and noncash activities are as follows (in thousands): Years Ended December 31, 2020 2019 2018 Cash paid for interest $ 7,456 $ 4,331 $ 197 Income taxes paid 208 308 859 Cash paid for operating leases 1,569 1,650 — Non-cash activities: Purchases of equipment included in accounts payable 1,062 1,184 1,168 Deferred financing costs 53 6,650 — Deemed dividends on convertible preferred stock Series B 32,028 — — Amendment fee on BT Term Loan 722 — — Lease right of use asset and liability 1,169 — — Fair value of non-cash consideration received for option exercise 922 — —

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Estimated annual lease, royalty, and employment agreement expenses	The estimated meeting space commitments are as follows (in thousands): Years Ended December 31, 2021 $ 169 2022 889 2023 — $ 1,058

Revenue Data by Customer Type (

Revenue Data by Customer Type (Tables)	12 Months Ended
	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Summary of net sales by customer types	Below is a summary of net sales by each customer type (in thousands): Year Ended December 31, 2020 2019 2018 Direct Customers $ 240,690 $ 288,800 $ 343,464 Distributors 7,544 10,455 15,647 Total $ 248,234 $ 299,255 $ 359,111

Restructuring (Tables)

Restructuring (Tables)	12 Months Ended
	Dec. 31, 2020
Restructuring and Related Activities [Abstract]
Changes in restructuring liability	Changes to this liability during the years ended December 31, 2020 were as follows (in thousands): Liability balance as of January 1, 2018 $ — Expenses 6,055 Cash distributions (448) Liability balance as of December 31, 2018 5,607 Expenses 8,543 Cash distributions (10,589) Liability balance as of December 31, 2019 3,561 Expenses — Cash distributions (3,561) Liability balance as of December 31, 2020 $ —

Quarterly Financial Data (Table

Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Schedule of quarterly financial information	The following table sets forth selected quarterly financial data for 2020 and 2019. Amounts for the fourth quarter of 2020 reflect the recording of out of period adjustments related to certain accruals recorded in prior quarters, including accruals of rebates, which were identified subsequent to the filings of the financial statements for those periods. The reflection of these adjustments increased net sales and gross profit by $0.8 million and decreased net loss by $1.3 million in the fourth quarter. The adjustments decreased basic and diluted net loss per common share in the fourth quarter by $0.01. All identified adjustments exclusively related to 2020 and did not affect any reported amounts for periods prior to 2020. Amounts presented are unaudited, in thousands, except per share amounts: First Quarter Second Quarter Third Quarter (1) Fourth Quarter Net sales 2020 $ 61,736 $ 53,647 $ 64,303 $ 68,548 2019 66,555 67,437 88,863 76,400 Gross profit 2020 51,711 45,449 54,014 57,730 2019 59,137 57,688 75,658 63,691 Income tax provision benefit (expense) 2020 11,304 (27) (38) 1,020 2019 (42) (42) 309 (220) Net (loss) income 2020 (4,821) (8,466) (19,417) (16,580) 2019 (13,273) (17,210) 12,379 (7,476) Net (loss) income per common share - basic 2020 $ (0.04) $ (0.08) $ (0.48) $ (0.17) 2019 $ (0.12) $ (0.16) $ 0.12 $ (0.07) Net (loss) income per common share - diluted 2020 $ (0.04) $ (0.08) $ (0.48) $ (0.17) 2019 $ (0.12) $ (0.16) $ 0.11 $ (0.07)

Nature of Business (Details)

Nature of Business (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Unusual or Infrequent Item, or Both [Line Items]
Income tax provision benefit (expense)	$ 1,020	$ (38)	$ (27)	$ 11,304	$ (220)	$ 309	$ (42)	$ (42)	$ 12,259	$ 5	$ (26,582)
Income tax receivable	10,045				$ 18				10,045	$ 18
CARES Act
Unusual or Infrequent Item, or Both [Line Items]
Income tax provision benefit (expense)									11,300
Federal tax refund									1,200
Income tax receivable	$ 10,100								$ 10,100

Significant Accounting Polici_4

Significant Accounting Policies - Additional Information (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2020USD ($)segmentreportingUnitdepositoryInstitution	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Market Concentrations and Credit Risk [Line Items]
Number of business segments | segment		1
Amount of insurance coverage provided by FDIC for deposits		$ 250,000
Cash and cash equivalents uninsured amount		$ 95,100,000	$ 68,400,000
Number of depository institutions | depositoryInstitution		4
impairment of indefinite useful lives intangible		$ 1,027,000	446,000	$ 0
impairment of finite-lived intangible assets			500,000
Number of reporting units | reportingUnit		1
Goodwill impairment		$ 0	0	0
Patent application costs		$ (327,000)	(466,000)	(609,000)
Accounts receivable, net				51,000,000
GPO administrative fees as percent of purchase volume		3.00%
Deferred cost of sales		$ 200,000	1,300,000
Advertising expense		$ 100,000	100,000	100,000
Minimum
Market Concentrations and Credit Risk [Line Items]
Property and equipment estimated useful life		3 years
Typical payment period for customers	30 days
Maximum
Market Concentrations and Credit Risk [Line Items]
Property and equipment estimated useful life		7 years
Typical payment period for customers	60 days
Patents
Market Concentrations and Credit Risk [Line Items]
impairment of indefinite useful lives intangible		$ 0	$ 800,000	$ 0

Significant Accounting Polici_5

Significant Accounting Policies - Assessment of Revenue under ASC 606 (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2020
Amounts Invoiced and Not Collected
Beginning balance, gross	$ 48,883
Beginning balance, net		$ 9,006
Ending balance, net	9,006	1,239
Deferred Cost of Sales
Ending balance, gross	6,415
Beginning balance, net		1,261
Ending balance, net	1,261	174
Accounting Standards Update 2014-09
Amounts Invoiced and Not Collected
Beginning balance, gross		(29,604)
Transition Adjustment during the three months ended September 30, 2019	(21,385)
Cash collected related to the Remaining Contracts	(8,219)	(7,767)
Ending balance, gross	(29,604)
Write-off of customer contracts where collection is no longer reasonably assured	(10,273)
Cash collected related to the Remaining Contracts	(8,219)	(7,767)
Deferred Cost of Sales
Ending balance, gross		(3,716)
Transition Adjustment during the three months ended September 30, 2019	(2,565)
Cash collected related to the Remaining Contracts	(1,151)	(1,087)
Beginning balance, gross	(3,716)
Write-off of customer contracts where collection is no longer reasonably assured	(1,438)
Cash collected related to the Remaining Contracts	$ (1,151)	$ (1,087)

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 328	$ 318
Work in process	4,543	4,299
Finished goods	6,329	5,206
Inventory, gross	11,200	9,823
Reserve for obsolescence	(839)	(719)
Inventory, net	10,361	9,104
Consignment inventory	$ 3,400	$ 3,500

Property and Equipment - Proper

Property and Equipment - Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property and equipment [Line Items]
Property and equipment, gross	$ 40,935	$ 36,305
Less accumulated depreciation and amortization	(29,498)	(23,977)
Property and equipment, net of accumulated depreciation	11,437	12,328
Leasehold improvements
Property and equipment [Line Items]
Property and equipment, gross	6,010	5,321
Laboratory and clean room equipment
Property and equipment [Line Items]
Property and equipment, gross	15,524	14,894
Furniture and office equipment
Property and equipment [Line Items]
Property and equipment, gross	15,295	15,118
Construction in progress
Property and equipment [Line Items]
Property and equipment, gross	3,321	972
Asset retirement cost
Property and equipment [Line Items]
Property and equipment, gross	$ 785	$ 0

Property and Equipment - Deprec

Property and Equipment - Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 5,782	$ 6,546	$ 5,882
Cost of sales
Property, Plant and Equipment [Line Items]
Depreciation expense	2,022	1,965	1,757
Selling, general and administrative expenses
Property, Plant and Equipment [Line Items]
Depreciation expense	3,416	4,223	3,760
Research and development expenses
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 344	$ 358	$ 365

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)warehouseSpace	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Leases [Abstract]
Number of subleased warehouse spaces | warehouseSpace	1
Sublet income	$ 0.1	$ 0
Sublet income			$ 0
Rent expense			$ 1.5
Asset retirement obligations	$ 0.8	$ 0

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Right of use asset	$ 3,623	$ 3,397
Short term lease liability	1,176	1,168
Long term lease liability	$ 2,960	$ 2,919
Weighted-average remaining lease term (years)	4 years 4 months 24 days	3 years 1 month 6 days
Weighted-average discount rate	10.00%	11.50%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssetsNoncurrent
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent	us-gaap:OtherLiabilitiesCurrent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent	us-gaap:OtherLiabilitiesNoncurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent

Leases - Lease Costs for Operat

Leases - Lease Costs for Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 1,392	$ 1,469
Amortization of leased assets	$ 983	$ 947

Leases - Maturities of Operatin

Leases - Maturities of Operating Lease Liabilities (Details) $ in Thousands	Dec. 31, 2020USD ($)
Leases [Abstract]
2021	$ 1,537
2022	1,566
2023	507
2024	339
2025	339
Thereafter	705
Total lease payments	4,993
Less: imputed interest	(857)
Operating lease liability	$ 4,136

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Narrative (Details)	12 Months Ended
	Dec. 31, 2020USD ($)reportingUnit	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of reporting units | reportingUnit	1
Goodwill impairment | $	$ 0	$ 0	$ 0

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill, beginning	$ 19,976	$ 19,976
Activity	0	0
Goodwill, ending	$ 19,976	$ 19,976

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Intangible Assets Activity Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 11,285	$ 14,394
Accumulated amortization	(7,334)	(8,755)
Net carrying amount	3,951	5,639
Total intangible assets, gross carrying amount	13,338	16,532
Total intangible assets, net carrying amount	6,004	7,777
Tradenames and trademarks
Indefinite-lived Intangible Assets [Line Items]
Gross carrying value, indefinite lived	1,008	1,008
Patents in process
Indefinite-lived Intangible Assets [Line Items]
Gross carrying value, indefinite lived	1,045	1,130
Licenses
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,414	1,414
Accumulated amortization	(1,334)	(1,200)
Net carrying amount	80	214
Patents and know-how
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	9,510	9,099
Accumulated amortization	(5,730)	(5,070)
Net carrying amount	3,780	4,029
Customer and supplier relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	241	3,761
Accumulated amortization	(172)	(2,417)
Net carrying amount	69	1,344
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	120	120
Accumulated amortization	(98)	(68)
Net carrying amount	$ 22	$ 52

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 1,073	$ 1,039	$ 1,034
Impairment of intangible assets	$ 1,027	$ 1,258	$ 0

Goodwill and Intangible Asset_6

Goodwill and Intangible Assets - Expected Future Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
2021	$ 793
2022	691
2023	691
2024	691
2025	279
Thereafter	806
Net carrying amount	$ 3,951	$ 5,639

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Commitments [Line Items]
Legal costs	$ 14,822	$ 12,202
Settlement costs	9,975	12,825
Estimated returns	688	2,581
External commissions	2,141	1,722
Accrued clinical trials	651	1,076
Accrued rebates	886	142
Other	1,297	1,613
Total	30,460	$ 32,161
Department of Veterans' Affairs Office of the Inspector General's Investigation
Other Commitments [Line Items]
Settlement costs	$ 6,900

Long Term Debt - Term Loan (Det

Long Term Debt - Term Loan (Details)

Jul. 02, 2020USD ($)

Apr. 24, 2020USD ($)

Apr. 22, 2020USD ($)

Jun. 10, 2019USD ($)

Dec. 31, 2020USD ($)

Jun. 30, 2021

Dec. 31, 2020USD ($)

Jul. 02, 2023

Jul. 02, 2022

Dec. 31, 2021

Jul. 02, 2021

Dec. 31, 2020USD ($)

Dec. 31, 2019USD ($)

Dec. 31, 2018USD ($)

Jul. 02, 2025

Jul. 02, 2025

Debt Instrument [Line Items]

Loss on extinguishment of debt

$ 8,200,000

$ 8,201,000

$ 0

$ 0

Paycheck Protection Program Loan

Debt Instrument [Line Items]

Proceeds from short-term debt

$ 10,000,000

Term Loan | Hayfin Loan Agreement Term Loan

Debt Instrument [Line Items]

Face value of debt

$ 50,000,000

Original issue discount

307,000

$ 307,000

$ 307,000

Term Loan | Hayfin Loan Agreement Term Loan | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Debt instrument, interest rate, floor (percent)

1.50%

Basis spread on variable rate

6.75%

Default interest rate (percent)

3.00%

Interest rate at issuance (percent)

8.30%

Term Loan | Hayfin Loan Agreement Term Loan | Federal Funds Rate

Debt Instrument [Line Items]

Basis spread on variable rate

6.75%

Term Loan | Hayfin Loan Agreement Delayed Draw Term Loan

Debt Instrument [Line Items]

Face value of debt

$ 25,000,000

Total net leverage ratio

3.5

Additional commitment fee (percent)

1.00%

Term Loan | Financing Transactions

Debt Instrument [Line Items]

Face value of debt

$ 100,000,000

Term Loan | Credit Facilities

Debt Instrument [Line Items]

Total net leverage ratio

5

Minimum liquidity

10,000,000

Original issue discount

500,000

Deferred financing costs

$ 3,253,000

Term Loan | BT Loan Agreement

Debt Instrument [Line Items]

Face value of debt

$ 75,000,000

Fair value of term loan

$ 52,800,000

$ 52,800,000

$ 52,800,000

Quarterly installments

900,000

Original issue discount

2,300,000

Deferred financing costs

$ 6,700,000

Term Loan | Amended Term Loan Agreement

Debt Instrument [Line Items]

Deferred financing costs

$ 700,000

Term Loan | Amended Term Loan Agreement | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

9.00%

Increase in interest rate (percent)

1.00%

Forecast | Term Loan | Credit Facilities

Debt Instrument [Line Items]

Total net leverage ratio

4

Prepayment penalty as percent of prepaid principal

1.00%

2.00%

0.00%

Subsequent Event | Forecast | Term Loan | Hayfin Loan Agreement Term Loan, Total Net Leverage Ratio Greater than 2.0x | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

6.75%

Subsequent Event | Forecast | Term Loan | Hayfin Loan Agreement Term Loan, Total Net Leverage Ratio Less than 2.0x but Greater than or Equal to 1.0x | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

6.50%

Subsequent Event | Forecast | Term Loan | Hayfin Loan Agreement Term Loan, Total Net Leverage Ratio Less than 1.0x | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Basis spread on variable rate

6.00%

Total net leverage ratio

1

Subsequent Event | Forecast | Term Loan | Credit Facilities

Debt Instrument [Line Items]

Total net leverage ratio

4.5

Prepayment penalty as percent of prepaid principal

5.00%

Debt instrument, prepayment make-whole premium as percent of prepaid principal, plus accrued interest (percent)

102.00%

Minimum | Term Loan | Hayfin Loan Agreement Term Loan | Prime Rate

Debt Instrument [Line Items]

Basis spread on variable rate

0.50%

Minimum | Subsequent Event | Forecast | Term Loan | Hayfin Loan Agreement Term Loan, Total Net Leverage Ratio Less than 2.0x but Greater than or Equal to 1.0x | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Total net leverage ratio

1

Maximum | Term Loan | Hayfin Loan Agreement Term Loan | Federal Funds Rate

Debt Instrument [Line Items]

Basis spread on variable rate

2.50%

Maximum | Subsequent Event | Forecast | Term Loan | Hayfin Loan Agreement Term Loan, Total Net Leverage Ratio Greater than 2.0x | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Total net leverage ratio

2

Maximum | Subsequent Event | Forecast | Term Loan | Hayfin Loan Agreement Term Loan, Total Net Leverage Ratio Less than 2.0x but Greater than or Equal to 1.0x | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Total net leverage ratio

2

Long Term Debt - Term Loan Debt

Long Term Debt - Term Loan Debt Issuance Costs (Details) - Term Loan - USD ($) $ in Thousands	Dec. 31, 2020	Jul. 02, 2020
Credit Facilities
Debt Instrument [Line Items]
Original issue discount		$ 500
Deferred financing costs		3,253
Hayfin Loan Agreement Term Loan
Debt Instrument [Line Items]
Original issue discount	$ 307
Long term debt | Hayfin Loan Agreement Term Loan
Debt Instrument [Line Items]
Original issue discount		333
Deferred financing costs		2,169
Other current assets | Hayfin Loan Agreement Delayed Draw Term Loan
Debt Instrument [Line Items]
Original issue discount		167
Deferred financing costs		$ 1,084

Long Term Debt - Term Loan Bala

Long Term Debt - Term Loan Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jun. 10, 2019
Debt Instrument [Line Items]
Long term debt	$ 50,000
Current portion
Long-term debt	0	$ 3,750
Long-term
Long-term debt	47,697	61,906
Term Loan | Hayfin Loan Agreement Term Loan
Debt Instrument [Line Items]
Outstanding principal	50,000
Deferred financing costs	(1,996)
Original issue discount	(307)
Long term debt	$ 47,697
Term Loan | BT Loan Agreement
Debt Instrument [Line Items]
Original issue discount			$ (2,300)
Current portion
Outstanding principal		3,750
Original issue discount		0
Deferred financing cost		0
Long-term debt		3,750
Long-term
Outstanding principal		69,375
Original issue discount		(1,890)
Deferred financing cost		(5,579)
Long-term debt		$ 61,906

Long Term Debt - Term Loan Inte

Long Term Debt - Term Loan Interest Expense (Details) - Term Loan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Hayfin Loan Agreement Term Loan
Debt Instrument [Line Items]
Interest on principal balance	$ 2,085
Accretion of original issue discount	26
Amortization of deferred financing costs	173
Interest expense	2,284
Hayfin Loan Agreement Delayed Draw Term Loan
Debt Instrument [Line Items]
Commitment fee	128
Accretion of original issue discount	83
Amortization of deferred financing costs	542
Interest expense	753
BT Loan Agreement
Debt Instrument [Line Items]
Interest on principal balance	3,773	$ 4,331
Accretion of amendment fee	53	0
Accretion of original issue discount	354	360
Amortization of deferred financing costs	1,051	1,071
Interest expense	$ 5,231	$ 5,762

Long Term Debt - Term Loan Matu

Long Term Debt - Term Loan Maturity (Details) $ in Thousands	Dec. 31, 2020USD ($)
Debt Disclosure [Abstract]
2021	$ 0
2022	0
2023	0
2024	0
2025	50,000
Thereafter	0
Long term debt	$ 50,000

Long Term Debt - Term Loan Exti

Long Term Debt - Term Loan Extinguishment of Debt (Details) - USD ($) $ in Thousands	Jul. 02, 2020	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Extinguishment of Debt [Line Items]
Loss on extinguishment of debt		$ 8,200	$ 8,201	$ 0	$ 0
BT Loan Agreement
Extinguishment of Debt [Line Items]
Unamortized deferred financing costs	$ 4,528
Unamortized original issue discount	1,538
Unamortized amendment fee	671
Prepayment premium	1,439
Other fees	25
Loss on extinguishment of debt	$ 8,201

Net Loss Per Common Share - Nar

Net Loss Per Common Share - Narrative (Details) - shares	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares authorized (in shares)	5,000,000

Net Loss Per Common Share - Bas

Net Loss Per Common Share - Basic Net Loss Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net loss	$ (16,580)	$ (19,417)	$ (8,466)	$ (4,821)	$ (7,476)	$ 12,379	$ (17,210)	$ (13,273)	$ (49,284)	$ (25,580)	$ (29,979)
Adjustments to reconcile to net loss available to common stockholders:
Accumulated dividend on Series B Convertible Preferred Stock									2,016	0	0
Amortization of beneficial conversion feature									31,110	0	0
Accretion of increasing-rate dividend feature									918	0	0
Total adjustments									34,044	0	0
Net loss available to common stockholders									$ (83,328)	$ (25,580)	$ (29,979)
Weighted average shares outstanding - basic (in shares)									108,257,112	106,946,384	105,596,256
Basic net (loss) income per common share (in dollars per share)	$ (0.17)	$ (0.48)	$ (0.08)	$ (0.04)	$ (0.07)	$ 0.12	$ (0.16)	$ (0.12)	$ (0.77)	$ (0.24)	$ (0.28)

Net Loss Per Common Share - Dil

Net Loss Per Common Share - Diluted Net Loss Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Computation of basic and diluted net loss per share [Abstract]
Net loss available to common stockholders									$ (83,328)	$ (25,580)	$ (29,979)
Dividends on Series B Convertible Preferred Stock									34,044	0	0
Numerator - net loss available to common stockholders adjusted for hypothetical conversion of Series B Convertible Preferred Stock									$ (83,328)	$ (25,580)	$ (29,979)
Denominator - weighted average common shares outstanding adjusted for potential common shares (in shares)									108,257,112	106,946,384	105,596,256
Diluted net loss per common share (in dollars per share)	$ (0.17)	$ (0.48)	$ (0.08)	$ (0.04)	$ (0.07)	$ 0.11	$ (0.16)	$ (0.12)	$ (0.77)	$ (0.24)	$ (0.28)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares (in shares)									15,687,044	2,135,806	3,538,921
Convertible preferred stock Series B
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares (in shares)									12,987,013	0	0
Restricted stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares (in shares)									1,299,770	1,157,563	365,978
Outstanding stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares (in shares)									752,499	978,243	3,172,943
Restricted stock unit awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares (in shares)									616,141	0	0
Performance stock unit awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares (in shares)									31,621	0	0

Equity - Convertible Preferred

Equity - Convertible Preferred Stock Series B (Details)	Jul. 02, 2020USD ($)daydirector$ / shares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)$ / shares	Dec. 31, 2018USD ($)
Dividends Payable [Line Items]
Series B convertible preferred stock par value (in dollars per share) | $ / shares		$ 0.001	$ 0.001	$ 0.001
Proceeds from sale of Series B convertible preferred stock			$ 100,000,000	$ 0	$ 0
Amortization of beneficial conversion feature			31,110,000	0	0
Accretion of increasing-rate dividend feature			918,000	0	0
Series B Preferred convertible Stock, dividends accrued but not recorded for the period			2,016,000	$ 0	$ 0
Preferred Class B Convertible Stock
Dividends Payable [Line Items]
Series B convertible preferred stock par value (in dollars per share) | $ / shares	$ 0.001
Proceeds from sale of Series B convertible preferred stock	$ 100,000,000
Series B preferred stock, conversion price (in dollars per share) | $ / shares	$ 3.85
Conversion ratio of Series B preferred stock to common stock	259.74
Series B preferred stock, minimum percentage of conversion stock price to trigger conversion (percent)	200.00%
Number of trading days within consecutive day trading period common stock must exceed trigger conversion price | day	20
Series B preferred stock, threshold number of consecutive trading days | day	30
Number of board seats elected by Series B preferred stockholders | director	2
Series B preferred stock, maximum voting stock percentage on an as-converted basis (percent)	19.90%
Series B preferred stock, increasing-rate dividend feature	$ 1,800,000
Accretion of increasing-rate dividend feature			$ 900,000
Series B Preferred convertible Stock, dividends accrued but not recorded for the period		$ 2,000,000
Series B Preferred convertible stock, shares issuable upon conversion (shares) | shares		26,497,570	26,497,570
Preferred Class B Convertible Stock | Discounted Dividend Rate prior to Quarterly Dividend Payment ending on June 30,2021
Dividends Payable [Line Items]
Series B convertible stock, cumulative dividend (percent)	4.00%
Preferred Class B Convertible Stock | Perpetual Dividend Rate after Quarterly Dividend Payment ending on June 30, 2021
Dividends Payable [Line Items]
Series B convertible stock, cumulative dividend (percent)	6.00%

Equity - Changes in Series B Pr

Equity - Changes in Series B Preferred Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Increase (Decrease) in Temporary Equity [Roll Forward]
Series B Preferred Stock, outstanding, beginning (in shares)	0
Series B Preferred Stock, outstanding, ending (in shares)	100,000	0
Series B Preferred Stock, outstanding, beginning	$ 0
Deemed dividends	32,028
Series B Preferred Stock, outstanding, ending	$ 91,568	$ 0
Convertible preferred stock Series B
Increase (Decrease) in Temporary Equity [Roll Forward]
Series B Preferred Stock, outstanding, beginning (in shares)	0
Issuance of Series B Preferred Stock (in shares)	100,000
Series B Preferred Stock, outstanding, ending (in shares)	100,000	0
Series B Preferred Stock, outstanding, beginning	$ 0
Issuance of Series B Preferred Stock	59,540
Deemed dividends	32,028	$ 0	$ 0
Series B Preferred Stock, outstanding, ending	$ 91,568	$ 0

Equity - Stock Incentive Plans

Equity - Stock Incentive Plans (Details)	12 Months Ended
	Dec. 31, 2020USD ($)planshares	Dec. 31, 2019USD ($)shares	Dec. 31, 2018USD ($)shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based compensation plans | plan	2
Intrinsic value of options exercised	$ 1,900,000	$ 600,000	$ 7,900,000
Proceeds from exercise of stock options	411,000	108,000	3,555,000
Tax benefit from exercise of stock options	1,600,000	200,000	5,900,000
Fair value of options vested	$ 0	$ 1,400,000	$ 100,000
Granted (in shares) | shares	0	0	0
Total unrecognized compensation expense	$ 0
All Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from exercise of stock options	$ 400,000	$ 100,000	$ 3,600,000
Modified Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual term of equity grant (in years)	10 years
2016 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for grant under the plan (in shares) | shares	8,400,000
2016 Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Contractual term of equity grant (in years)	10 years
2016 Plan | Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years

Equity - Stock Option Activity

Equity - Stock Option Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Number of Shares
Outstanding, beginning of period (in shares)	2,885,334
Granted (in shares)	0	0	0
Exercised (in shares)	(508,300)
Unvested options forfeited (in shares)	0
Vested options expired (in shares)	(351,351)
Outstanding, end of period (in shares)	2,025,683	2,885,334
Exercisable, end of period (in shares)	2,025,683
Weighted- Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 4.42
Granted (in dollars per share)	0
Exercised (in dollars per share)	2.62
Unvested options forfeited (in dollars per share)	0
Vested options expired (in dollars per share)	5.90
Outstanding, weighted average exercise price, end of period (in dollars per share)	4.62	$ 4.42
Exercisable (in dollars per share)	$ 4.62
Weighted- Average Remaining Contractual Term (in years)
Outstanding options (in years)	2 years 1 month 6 days
Exercisable (in years)	2 years 1 month 6 days
Aggregate Intrinsic Value
Outstanding	$ 9,054,128
Exercisable	$ 9,054,128

Equity - Modification of Stock

Equity - Modification of Stock Options (Details)	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)directorshares	Dec. 31, 2018USD ($)
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based compensation expense | $	$ 15,357,000	$ 12,064,000	$ 14,768,000
Modified Stock Option
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Share-based compensation expense | $		$ 400,000
Contractual term of equity grant (in years)	10 years
2019 Option Modification
Expected dividend yield	0.00%
Modified Stock Option | Minimum
2019 Option Modification
Expected volatility	65.00%
Expected life (in years)	3 months 10 days
Risk-free interest rate	1.56%
Modified Stock Option | Maximum
2019 Option Modification
Expected volatility	95.00%
Expected life (in years)	5 years 1 month 13 days
Risk-free interest rate	2.02%
Members of the Board | Modified Stock Option
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Fully vested options (in shares) | shares		612,000
Number of Board Members with Modified Option Grants | director		7
Former Employee | Modified Stock Option
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Fully vested options (in shares) | shares		278,916

Equity - Restricted Stock Award

Equity - Restricted Stock Awards (Details) - USD ($) $ in Thousands	Aug. 06, 2020	Aug. 05, 2020	Aug. 04, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense				$ 15,357	$ 12,064	$ 14,768
Recorded liability reclassified as additional paid-in capital	$ 300	$ 1,300
Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation related to unvest restricted stock awards				$ 11,500
Expenses expected to be recognized over a weighted-average period (in years)				1 year 11 months 26 days
Fair value of restricted stock awards vested				$ 10,100	5,200	$ 17,900
Restricted stock unit awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share unit awards granted, fair value					1,600
Share-based compensation expense			$ 1,300	$ 900	$ 400
Minimum | Restricted Stock And RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)				1 year
Maximum | Restricted Stock And RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)				3 years

Equity - Summary of Restricted

Equity - Summary of Restricted Stock Awards (Details)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Restricted stock awards
Number of Shares
Unvested, beginning of period (in shares) | shares	3,383,196
Modification of prior year grants (in shares) | shares	0
Granted (in shares) | shares	599,728
Vested (in shares) | shares	(1,416,888)
Forfeited (in shares) | shares	(390,177)
Unvested, end of period (in shares) | shares	2,175,859
Weighted-Average Grant Date Fair Value
Unvested, beginning of period (in dollars per share) | $ / shares	$ 5.13
Modification of prior year grants (in dollars per share) | $ / shares	0
Granted (in dollars per share) | $ / shares	6.33
Vested (in dollars per share) | $ / shares	6.18
Forfeited (in dollars per share) | $ / shares	5.11
Unvested, end of period (in dollars per share) | $ / shares	$ 4.78
Restricted stock unit awards
Number of Shares
Unvested, beginning of period (in shares) | shares	0
Modification of prior year grants (in shares) | shares	271,184
Granted (in shares) | shares	2,432,654
Vested (in shares) | shares	(271,184)
Forfeited (in shares) | shares	(107,381)
Unvested, end of period (in shares) | shares	2,325,273
Weighted-Average Grant Date Fair Value
Unvested, beginning of period (in dollars per share) | $ / shares	$ 0
Modification of prior year grants (in dollars per share) | $ / shares	5.90
Granted (in dollars per share) | $ / shares	5.90
Vested (in dollars per share) | $ / shares	5.90
Forfeited (in dollars per share) | $ / shares	5.90
Unvested, end of period (in dollars per share) | $ / shares	$ 5.90
Performance stock unit awards
Number of Shares
Unvested, beginning of period (in shares) | shares	140,845
Modification of prior year grants (in shares) | shares	0
Granted (in shares) | shares	25,422
Vested (in shares) | shares	(87,370)
Forfeited (in shares) | shares	(43,685)
Unvested, end of period (in shares) | shares	35,212
Weighted-Average Grant Date Fair Value
Unvested, beginning of period (in dollars per share) | $ / shares	$ 7.10
Modification of prior year grants (in dollars per share) | $ / shares	0
Granted (in dollars per share) | $ / shares	5.90
Vested (in dollars per share) | $ / shares	6.87
Forfeited (in dollars per share) | $ / shares	6.87
Unvested, end of period (in dollars per share) | $ / shares	$ 7.10

Equity - Recognized Stock-Based

Equity - Recognized Stock-Based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Payment Arrangement, Noncash Expense [Abstract]
Share-based compensation expense	$ 15,357	$ 12,064	$ 14,768
Income tax benefit	(3,792)	(3,081)	(3,803)
Total share-based compensation, net of tax benefit	11,565	8,983	10,965
Cost of sales
Share-based Payment Arrangement, Noncash Expense [Abstract]
Share-based compensation expense	520	477	705
Research and development
Share-based Payment Arrangement, Noncash Expense [Abstract]
Share-based compensation expense	288	265	584
Selling, general and administrative
Share-based Payment Arrangement, Noncash Expense [Abstract]
Share-based compensation expense	$ 14,549	$ 11,322	$ 13,479

Equity - Treasury Stock (Detail

Equity - Treasury Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Shares repurchased (in shares)	148,972		507,600
Shares repurchased, value	$ 900		$ 7,600
Adjustments related to tax withholding for share-based compensation	$ 2,334	$ 1,474	$ 4,914
Treasury Stock
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Shares repurchased (in shares)			507,600
Shares repurchased for tax withholding on vesting of restricted stock units (in shares)	435,492	429,918	614,123
Adjustments related to tax withholding for share-based compensation	$ 2,334	$ 1,474	$ 4,914

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Unusual or Infrequent Item, or Both [Line Items]
Income tax benefit	$ 1,020,000	$ (38,000)	$ (27,000)	$ 11,304,000	$ (220,000)	$ 309,000	$ (42,000)	$ (42,000)	$ 12,259,000	$ 5,000	$ (26,582,000)
Income tax receivable	10,045,000				18,000				10,045,000	18,000
Deferred employer tax payments	2,200,000								2,200,000
Operating Loss Carryforwards [Line Items]
Interest limitation carryforward	2,992,000				839,000				$ 2,992,000	$ 839,000
Federal statutory rate									21.00%	21.00%	21.00%
Valuation allowance	35,626,000				30,615,000				$ 35,626,000	$ 30,615,000
Deferred tax assets, operating loss carryforwards, federal	13,200,000				11,900,000				13,200,000	11,900,000
Deferred tax assets, operating loss carryforwards, state	4,000,000				3,100,000				4,000,000	3,100,000
Unrecognized tax benefits that, if recognized, would impact effective tax rate	0				600,000				0	600,000
Accrued interest related to unrecognized tax benefits	0				100,000				0	100,000	$ 100,000
Interest expense related to unrecognized tax benefits										100,000	$ 100,000
CARES Act
Unusual or Infrequent Item, or Both [Line Items]
Income tax benefit									11,300,000
Federal tax refund									1,200,000
Income tax receivable	10,100,000								10,100,000
Federal
Operating Loss Carryforwards [Line Items]
Income tax net operating loss carryforwards	62,700,000				68,500,000				62,700,000	68,500,000
State
Operating Loss Carryforwards [Line Items]
Income tax net operating loss carryforwards	$ 56,800,000				$ 49,300,000				$ 56,800,000	$ 49,300,000

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets:
Net operating loss	$ 17,010	$ 14,350
Research and development and other tax credits	5,920	2,349
Share-based compensation	3,259	3,439
Interest limitation carryforward	2,992	839
Accrued expenses	2,918	3,759
Accrued settlement costs	2,464	3,276
Bad debts	2,138	4,859
Lease obligation	1,021	1,044
Sales return and allowances	170	659
Other	1,075	1,285
Deferred Tax Liabilities:
Prepaid expenses	(1,170)	(1,189)
Property and equipment	(1,073)	(1,582)
Right of use asset	(895)	(868)
Intangible assets	(160)	(389)
Deferred costs of goods sold	(43)	(322)
Unearned insurance refund	0	(894)
Net Deferred Tax Assets
Net Deferred Tax Assets	35,626	30,615
Less: Valuation allowance	(35,626)	(30,615)
Net Deferred Tax Assets after Valuation Allowance	$ 0	$ 0

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of the Federal Statutory Income Tax (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
State taxes, net of federal benefit	(0.20%)	(1.36%)	3.52%
Nondeductible compensation	(0.89%)	(1.49%)	(15.33%)
Meals and entertainment	(0.50%)	(2.04%)	(24.16%)
Share-based compensation	(1.24%)	(5.05%)	10.82%
Tax credits	0.32%	0.45%	19.75%
Uncertain tax positions	0.24%	1.22%	(2.35%)
Write-off of net operating losses	0.00%	0.00%	(11.81%)
Fixed asset adjustment	0.00%	0.00%	5.33%
NOL carryback rate differential	0.1099	0	0
Other	(1.66%)	0.12%	(1.03%)
Valuation allowance	(8.14%)	(12.83%)	(788.33%)
Effective tax rate	19.92%	0.02%	(782.59%)

Income Taxes - Schedule of curr

Income Taxes - Schedule of current and deferred income tax expense (benefit) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal									$ (12,418)	$ (53)	$ 614
State									159	48	427
Total current									(12,259)	(5)	1,041
Deferred:
Federal									0	0	19,452
State									0	0	6,089
Total deferred									0	0	25,541
Total (benefit) expense	$ (1,020)	$ 38	$ 27	$ (11,304)	$ 220	$ (309)	$ 42	$ 42	$ (12,259)	$ (5)	$ 26,582

Income Taxes - Reconciliation_2

Income Taxes - Reconciliation of unrecognized tax benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning of period	$ 627	$ 938	$ 847
Gross increases - tax positions in current period	0	56	91
Decreases in prior year positions	(150)	(367)	0
Unrecognized tax benefits, end of period	$ 477	$ 627	$ 938

Supplemental Disclosure of Ca_3

Supplemental Disclosure of Cash Flow and Non-Cash Investing and Financing Activities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Dividends Payable [Line Items]
Cash paid for interest	$ 7,456	$ 4,331	$ 197
Income taxes paid	208	308	859
Cash paid for operating leases	1,569	1,650	0
Non-cash activities:
Purchases of equipment included in accounts payable	1,062	1,184	1,168
Deferred financing costs	53	6,650	0
Deemed dividends on convertible preferred stock Series B	32,028
Amendment fee on BT Term Loan	722	0	0
Lease right of use asset and liability	1,169	0	0
Fair value of non-cash consideration received for option exercise	922	0	0
Convertible preferred stock Series B
Non-cash activities:
Deemed dividends on convertible preferred stock Series B	$ 32,028	$ 0	$ 0

401(k) Plan (Details)

401(k) Plan (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Contribution Plan Disclosure [Line Items]
Minimum service period required to qualify for 401(k) plan		1 month
Maximum wages deferred (as percent)		90.00%
Maximum eligible wages deferred by participants per year		$ 19,500
Minimum age for additional contribution beyond normal plan		50 years
Defined benefit plan, contributions by plan participants		$ 6,500
Contributions matched by employer (as percent)		50.00%
Employer matching contribution of eligible compensation (as percent)		5.00%
Employer matching contribution		$ 1,500,000	$ 1,500,000	$ 1,900,000
Forecast
Defined Contribution Plan Disclosure [Line Items]
Contributions matched by employer (as percent)	50.00%
Employer matching contribution of eligible compensation (as percent)	8.00%

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) $ in Millions	May 15, 2019plaintiff	Jan. 20, 2017formerEmployee	Apr. 30, 2020USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 06, 2018action
Loss Contingencies [Line Items]
Lessee expiration period (in years)				3 years
Litigation liability				$ 10	$ 12.8
Payments for legal settlements				7.4
Payments for legal settlements through insurance provider				$ 3.5
Shareholder Derivative Suits
Loss Contingencies [Line Items]
Number of shareholder derivative actions consolidated | action						3
Nix and Damiano v. Evans, et al.
Loss Contingencies [Line Items]
Number of plaintiffs | plaintiff	2
Kruchoski et. al. v. Mimedx Group, Inc.
Loss Contingencies [Line Items]
Number of former employees | formerEmployee		2
Litigation settlement			$ 6.5

Commitments and Contingencies_2

Commitments and Contingencies - Estimated Annual Lease, Royalty, and Employment Agreement Expenses (Details) $ in Thousands	Dec. 31, 2020USD ($)
Commitments and Contingencies Disclosure [Abstract]
2021	$ 169
2022	889
2023	0
Total Contractual commitments	$ 1,058

Revenue Data by Customer Type_2

Revenue Data by Customer Type (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020USD ($)distributionChannel	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2020USD ($)distributionChannel	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Revenue, Major Customer [Line Items]
Number of primary distribution channels | distributionChannel	2								2
Net sales	$ 68,548	$ 64,303	$ 53,647	$ 61,736	$ 76,400	$ 88,863	$ 67,437	$ 66,555	$ 248,234	$ 299,255	$ 359,111
Sales Channel, Directly to Consumer
Revenue, Major Customer [Line Items]
Net sales									240,690	288,800	343,464
Sales Channel, Through Intermediary
Revenue, Major Customer [Line Items]
Net sales									$ 7,544	$ 10,455	$ 15,647

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Chief Scientific Officer | Related Party - Salary
Related Party Transaction [Line Items]
Related party expenses	$ 0.2	$ 0.2
Chief Scientific Officer | Related Party - Sales Commissions, Equity, Incentive, and Other Compensation
Related Party Transaction [Line Items]
Related party expenses	$ 0.3	0.2
Brother-in-law of former General Counsel and Secretary | Related Party - Salary
Related Party Transaction [Line Items]
Related party expenses		0.1
Brother-in-law of former General Counsel and Secretary | Related Party - Sales Commissions, Equity, Incentive, and Other Compensation
Related Party Transaction [Line Items]
Related party expenses		0.1
Brother-in-law of former General Counsel and Secretary | Related Party - Total Compensation
Related Party Transaction [Line Items]
Related party expenses		$ 0.2

Restructuring - Narrative (Deta

Restructuring - Narrative (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2018position	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Restructuring and Related Activities [Abstract]
Number of positions eliminated | position	240
Number of positions eliminated, percentage	24.00%
Restructuring expenses | $		$ 0	$ 8,543	$ 6,055

Restructuring - Restructuring R

Restructuring - Restructuring Reserve Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Reserve [Roll Forward]
Liability balance, beginning	$ 3,561	$ 5,607	$ 0
Expenses	0	8,543	6,055
Cash distributions	(3,561)	(10,589)	(448)
Liability balance, ending	$ 0	$ 3,561	$ 5,607

Quarterly Financial Data (Detai

Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Effect of Fourth Quarter Events [Line Items]
Net sales	$ 68,548	$ 64,303	$ 53,647	$ 61,736	$ 76,400	$ 88,863	$ 67,437	$ 66,555	$ 248,234	$ 299,255	$ 359,111
Gross profit	57,730	54,014	45,449	51,711	63,691	75,658	57,688	59,137	208,904	256,174	322,725
Income tax provision benefit (expense)	1,020	(38)	(27)	11,304	(220)	309	(42)	(42)	12,259	5	(26,582)
Net (loss) income	$ (16,580)	$ (19,417)	$ (8,466)	$ (4,821)	$ (7,476)	$ 12,379	$ (17,210)	$ (13,273)	$ (49,284)	$ (25,580)	$ (29,979)
Net income (loss) per common share - basic (in dollars per share)	$ (0.17)	$ (0.48)	$ (0.08)	$ (0.04)	$ (0.07)	$ 0.12	$ (0.16)	$ (0.12)	$ (0.77)	$ (0.24)	$ (0.28)
Net (loss) income per common share - diluted (in dollars per share)	$ (0.17)	$ (0.48)	$ (0.08)	$ (0.04)	$ (0.07)	$ 0.11	$ (0.16)	$ (0.12)	$ (0.77)	$ (0.24)	$ (0.28)
Revision of Prior Period, Error Correction, Adjustment
Effect of Fourth Quarter Events [Line Items]
Net sales	$ 800
Gross profit	800
Net (loss) income	$ 1,300
Net income (loss) per common share - basic (in dollars per share)	$ 0.01
Net (loss) income per common share - diluted (in dollars per share)	$ 0.01

Schedule II Valuation and Qua_2

Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 0
Additions charged to Expense or Revenue	719
Deductions and write-offs	18
Balance at End of Year	737	$ 0
Allowance for product returns
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	4,115	8,510	$ 7,362
Additions charged to Expense or Revenue	705	0	1,148
Deductions and write-offs	(2,499)	(4,395)	0
Balance at End of Year	2,321	4,115	8,510
Allowance for obsolescence
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	719	589	768
Additions charged to Expense or Revenue	340	1,204	511
Deductions and write-offs	(220)	(1,074)	(690)
Balance at End of Year	$ 839	$ 719	$ 589