Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation of the results of operations for the periods presented have been included. The operating results for the three months ended March 31, 2023 and 2022 are not necessarily indicative of the results that may be expected for the full fiscal year. The balance sheet as of December 31, 2022 was derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the historical consolidated financial statements of the Company included in the 2022 Form 10-K.
Reclassifications	Reclassifications Increase in cash resulting from changes in income taxes of $0.1 million for the three months ended March 31, 2022, which was separately presented in the unaudited condensed consolidated statement of cash flows in previously-issued financial statements, is included as part of increases and decreases in cash resulting from changes in other assets in the unaudited condensed consolidated statement of cash flows included as part of these financial statements.
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.
Use of Estimates	Use of Estimates GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the 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, estimates of impairment for 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 and the probable achievement of share-based payments, estimates of returns and allowances, and valuation of deferred tax assets.
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”). Awards to employees and the Board are generally made annually. Grants are issued outside of the annual cadence for certain new hires, promotions, and other events. 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 non-option share awards that are not subject to a market condition is the value of the common stock on the grant date. For non-option share awards that are subject to a market condition, the fair value of the common stock on the grant date is adjusted to reflect the value of the market condition, generally using a path-dependent pricing model, such as a Monte Carlo simulation. The fair value of stock option grants is estimated using an option pricing model, as appropriate based on the terms of the grant. Use of a valuation model requires management to make certain assumptions with respect to selected model inputs, which generally follows the inputs to a Black-Scholes option pricing model. Absent the availability of an option market with similar terms to the awarded options, the Company uses the historical volatility of daily price changes in its share price for a period equal to the contractual or expected term of the option, as applicable, subject to adjustment for price activity associated with certain events which are not expected to recur during the relevant term to infer an expectation of volatility. The expected term is derived based on the Company’s expectations for option exercise by the recipients. The Company uses U.S. Treasury yields with a maturity similar to the expected or contractual term, as applicable, as the basis for its risk-free interest rate assumption. The Company has never declared a dividend on its common stock and, therefore, assumes a dividend yield of 0%. For awards with service-based vesting conditions only, the Company recognizes share-based compensation expense on a straight-line basis through the vesting date of the last tranche of the award. For awards which vest based on more than a service condition, the Company recognizes share-based compensation expense using a graded-vesting method, treating each tranche as if it were a separately-granted award and recognizing expense through the vesting date of each individual tranche. In each scenario, the Company recognizes share-based compensation expense to the extent associated service and performance conditions are considered probable to occur. Determinations of probability are made during each reporting period and use available evidence considered relevant for the particular performance condition. The Company recognizes the cumulative effect of changes in the probability of occurrence in the period of re-evaluation. The probability and ultimate resolution of market conditions is not considered in expense recognition. Consequently, the Company could recognize expense for awards that do not ultimately vest.
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 the weighted average common shares outstanding for the applicable period. Net loss available to common stockholders is calculated by adjusting net loss for periodic accumulated dividends on the Company’s Series B Convertible Preferred Stock (“Series B Preferred Stock”). This amount is divided by the weighted average common shares outstanding during the period. Weighted average common shares outstanding is calculated as shares of the Company outstanding adjusted for the portion of the period for which they are outstanding. Unvested non-option share awards are excluded from the calculation of weighted average common shares outstanding until they have vested. Unvested stock options are excluded from the calculation of weighted average common shares outstanding until they are exercised. Shares issuable pursuant to the Company’s Employee Stock Purchase Plan (“ESPP”) are included for the minimum number of shares issuable beginning at the point in time that all contingencies for share issuance are resolved. Diluted net loss per common share adjusts basic net loss per common share for convertible securities, options, equity incentive awards, and other share-based payment awards which have yet to vest and vest only on the satisfaction of a service condition. Equity incentive awards and options that are subject to a performance or market condition are included only if the performance or market condition would be satisfied if the end of the applicable period were the end of the performance period. In any case, these adjustments are reflected in the calculation of diluted net loss per common share to the extent that they reduce basic net loss per common share. The Company uses the if-converted method to calculate the dilutive effect of the Series B Preferred Stock and other convertible securities to the extent they are outstanding. The if-converted method assumes that convertible securities are converted at the later of the issuance date and the beginning of the period. If the hypothetical conversion of convertible securities, and the consequential avoidance of any 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 portion of the period the securities were outstanding. The Company uses the treasury stock method to calculate the dilutive effect of options, non-option share awards, and certain other share-based payments. 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. Share-based payment awards which are subject to a performance or market condition are included if or to the extent that the applicable performance or market condition has been resolved as if the end of the applicable reporting period were the end of the applicable performance period. Shares issuable pursuant to the ESPP are included in the calculation of diluted net loss per common share to the extent that such shares would be issued based on the share price at the conclusion of the period, to the extent such shares are not already included in the calculation of weighted average common shares outstanding.
Recently Issued Accounting Standards Not Yet Adopted	Recently Issued Accounting Standards Not Yet Adopted All ASUs issued and not yet effective for the three months ended March 31, 2023, 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 financial position and results of operations.
Segment Reporting	The accounting policies of the segments are the same as the Company’s accounting policies. See Note 2, Significant Accounting Policies, included in the 2022 Form 10-K. The Company evaluates the performance of its segments and allocates resources based on segment contribution, defined as net sales less (i) cost of sales, (ii) selling, general and administrative expense, (iii) research and development expense, and (iv) amortization of intangible assets. Prior period results were recast on the basis of new operating segments. The only components which comprise loss before income tax provision that are not included in operating loss are interest expense, net and other expense, net. The Company does not allocate any assets to the reportable segments. No asset information is reported or disclosed to the chief operating decision maker in the financial information for each segment.

Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

The unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation of the results of operations for the periods presented have been included. The operating results for the three months ended March 31, 2023 and 2022 are not necessarily indicative of the results that may be expected for the full fiscal year. The balance sheet as of December 31, 2022 was derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements.

These unaudited condensed consolidated financial statements should be read in conjunction with the historical consolidated financial statements of the Company included in the 2022 Form 10-K.

Reclassifications

Increase in cash resulting from changes in income taxes of $0.1 million for the three months ended March 31, 2022, which was separately presented in the unaudited condensed consolidated statement of cash flows in previously-issued financial statements, is included as part of increases and decreases in cash resulting from changes in other assets in the unaudited condensed consolidated statement of cash flows included as part of these financial statements.

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.

Use of Estimates

GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the 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, estimates of impairment for 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 and the probable achievement of share-based payments, estimates of returns and allowances, and valuation of deferred tax assets.

Share-Based Compensation

The Company grants share-based awards to employees and members of the Company’s Board of Directors (the “Board”). Awards to employees and the Board are generally made annually. Grants are issued outside of the annual cadence for certain new hires, promotions, and other events.

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 non-option share awards that are not subject to a market condition is the value of the common stock on the grant date. For non-option share awards that are subject to a market condition, the fair value of the common stock on the grant date is adjusted to reflect the value of the market condition, generally using a path-dependent pricing model, such as a Monte Carlo simulation.

The fair value of stock option grants is estimated using an option pricing model, as appropriate based on the terms of the grant. Use of a valuation model requires management to make certain assumptions with respect to selected model inputs, which generally follows the inputs to a Black-Scholes option pricing model. Absent the availability of an option market with similar terms to the awarded options, the Company uses the historical volatility of daily price changes in its share price for a period equal to the contractual or expected term of the option, as applicable, subject to adjustment for price activity associated with certain events which are not expected to recur during the relevant term to infer an expectation of volatility. The expected term is derived based on the Company’s expectations for option exercise by the recipients. The Company uses U.S. Treasury yields with a maturity similar to the expected or contractual term, as applicable, as the basis for its risk-free interest rate assumption. The Company has never declared a dividend on its common stock and, therefore, assumes a dividend yield of 0%.

For awards with service-based vesting conditions only, the Company recognizes share-based compensation expense on a straight-line basis through the vesting date of the last tranche of the award. For awards which vest based on more than a service condition, the Company recognizes share-based compensation expense using a graded-vesting method, treating each tranche as if it were a separately-granted award and recognizing expense through the vesting date of each individual tranche. In each scenario, the Company recognizes share-based compensation expense to the extent associated service and performance conditions are considered probable to occur. Determinations of probability are made during each reporting period and use available evidence considered relevant for the particular performance condition. The Company recognizes the cumulative effect of changes in the probability of occurrence in the period of re-evaluation. The probability and ultimate resolution of market conditions is not considered in expense recognition. Consequently, the Company could recognize expense for awards that do not ultimately vest.

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 the weighted average common shares outstanding for the applicable period. Net loss available to common stockholders is calculated by adjusting net loss for periodic accumulated dividends on the Company’s Series B Convertible Preferred Stock (“Series B Preferred Stock”). This amount is divided by the weighted average common shares outstanding during the period.

Weighted average common shares outstanding is calculated as shares of the Company outstanding adjusted for the portion of the period for which they are outstanding. Unvested non-option share awards are excluded from the calculation of weighted average common shares outstanding until they have vested. Unvested stock options are excluded from the calculation of weighted average common shares outstanding until they are exercised. Shares issuable pursuant to the Company’s Employee Stock Purchase Plan (“ESPP”) are included for the minimum number of shares issuable beginning at the point in time that all contingencies for share issuance are resolved.

Diluted net loss per common share adjusts basic net loss per common share for convertible securities, options, equity incentive awards, and other share-based payment awards which have yet to vest and vest only on the satisfaction of a service condition. Equity incentive awards and options that are subject to a performance or market condition are included only if the performance or market condition would be satisfied if the end of the applicable period were the end of the performance period. In any case, these adjustments are reflected in the calculation of diluted net loss per common share to the extent that they reduce basic net loss per common share.

The Company uses the if-converted method to calculate the dilutive effect of the Series B Preferred Stock and other convertible securities to the extent they are outstanding. The if-converted method assumes that convertible securities are converted at the later of the issuance date and the beginning of the period. If the hypothetical conversion of convertible securities, and the consequential avoidance of any 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 portion of the period the securities were outstanding.

The Company uses the treasury stock method to calculate the dilutive effect of options, non-option share awards, and certain other share-based payments. 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. Share-based payment awards which are subject to a performance or market condition are included if or to the extent that the applicable performance or market condition has been resolved as if the end of the applicable reporting period were the end of the applicable performance period.

Shares issuable pursuant to the ESPP are included in the calculation of diluted net loss per common share to the extent that such shares would be issued based on the share price at the conclusion of the period, to the extent such shares are not already included in the calculation of weighted average common shares outstanding.

Recently Issued Accounting Standards Not Yet Adopted

All ASUs issued and not yet effective for the three months ended March 31, 2023, 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 financial position and results of operations.

Segment Reporting

The accounting policies of the segments are the same as the Company’s accounting policies. See Note 2, Significant Accounting Policies, included in the 2022 Form 10-K.

The Company evaluates the performance of its segments and allocates resources based on segment contribution, defined as net sales less (i) cost of sales, (ii) selling, general and administrative expense, (iii) research and development expense, and (iv) amortization of intangible assets. Prior period results were recast on the basis of new operating segments. The only components which comprise loss before income tax provision that are not included in operating loss are interest expense, net and other expense, net.

The Company does not allocate any assets to the reportable segments. No asset information is reported or disclosed to the chief operating decision maker in the financial information for each segment.

- Definition

Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.

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