10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended September 30, 2014

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____________________to______________________

Commission file number 001-35887

MIMEDX GROUP, INC.

(Exact name of registrant as specified in its charter)

Florida	26-2792552
(State or other jurisdiction of incorporation)	(I.R.S. Employer Identification Number)

1775 West Oak Commons Ct NE Marietta, GA	30062
(Address of principal executive offices)	(Zip Code)

(770) 651-9100

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes x     No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ¨ Accelerated filer x Non-accelerated filer ¨ (Do not check if a smaller reporting company) Smaller reporting company ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ¨ No x

As of October 15, 2014, there were 106,938,400 shares outstanding of the registrant’s common stock.

Table of Contents

Part I     FINANCIAL INFORMATION
Item 1	Condensed Consolidated Financial Statements
	Condensed Consolidated Balance Sheets (unaudited) September 30, 2014 and December 31, 2013	4
	Condensed Consolidated Statements of Operations (unaudited) Three and Nine Months Ended September 30, 2014 and 2013	5
	Condensed Consolidated Statement of Stockholders’ Equity (unaudited) Nine Months Ended September 30, 2014	6
	Condensed Consolidated Statements of Cash Flows (unaudited) Nine Months Ended September 30, 2014 and 2013	7
	Notes to the Unaudited Condensed Consolidated Financial Statements Three and Nine Months Ended September 30, 2014 and 2013	8
Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3	Quantitative and Qualitative Disclosures About Market Risk	22
Item 4	Controls and Procedures	23
Part II   OTHER INFORMATION
Item 1	Legal Proceedings	23
Item 1A	Risk Factors	24
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	24
Item 3	Defaults upon Senior Securities	24
Item 4	Mine Safety Disclosures	24
Item 5	Other Information	24
Item 6	Exhibits	25
Signatures		26

2

Forward-Looking Statements

This Form 10-Q and certain information incorporated herein by reference contain forward-looking statements and information within the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, and Section 21E of the Securities Exchange Act of 1934.  This information includes assumptions made by, and information currently available to management, including statements regarding future economic performance and financial condition, liquidity and capital resources, acceptance of our products by the market, and management’s plans and objectives. In addition, certain statements included in this and our future filings with the Securities and Exchange Commission (“SEC”), in press releases, and in oral and written statements made by us or with our approval, which are not statements of historical fact, are forward-looking statements. Words such as “may,” “could,” “should,” “would,” “believe,” “expect,” “expectation,” “anticipate,” “estimate,” “intend,” “seeks,” “plan,” “project,” “continue,” “predict,” “will,” “should,” and other words or expressions of similar meaning are intended by us to identify forward-looking statements, although not all forward-looking statements contain these identifying words.  These forward-looking statements are found at various places throughout this report and in the documents incorporated herein by reference.  These statements are based on our current expectations about future events or results and information that is currently available to us, involve assumptions, risks, and uncertainties, and speak only as of the date on which such statements are made.

Our actual results may differ materially from those expressed or implied in these forward-looking statements.  Factors that may cause such a difference include, but are not limited to, those discussed in Part II, Item 1A, “Risk Factors,” below and in our most recent Annual Report on Form 10-K, as well as other reports we file with the SEC.  Except as expressly required by the federal securities laws, we undertake no obligation to update any such factors, or to publicly announce the results of, or changes to any of the forward-looking statements contained herein to reflect future events, developments, changed circumstances, or for any other reason.

As used herein, the terms “MiMedx,” “the Company,” “we,” “our” and “us” refer to MiMedx Group, Inc., a Florida corporation, and its consolidated subsidiaries as a combined entity, except where it is clear that the terms mean only MiMedx Group, Inc.

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Part I - FINANCIAL INFORMATION

Item 1. Condensed Consolidated Financial Statements

MIMEDX GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

	September 30, 2014 (unaudited)			December 31,  2013
ASSETS
Current assets:
Cash and cash equivalents	$	47,253,003		$	44,077,751
Accounts receivable, net	23,304,472			16,092,836
Inventory, net	4,738,690			3,880,776
Prepaid expenses and other current assets	1,968,290			1,337,408
Total current assets	77,264,455			65,388,771
Property and equipment, net of accumulated depreciation	5,052,209			4,086,106
Goodwill	4,040,443			4,040,443
Intangible assets, net of accumulated amortization	10,960,300			11,178,573
Total assets	$	97,317,407		$	84,693,893
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	2,759,409		$	2,490,531
Accrued compensation	9,448,245			5,588,811
Accrued expenses	1,989,997			1,405,974
Other current liabilities	251,578			122,551
Total current liabilities	14,449,229			9,607,867
Other liabilities	1,611,927			1,517,956
Total liabilities	16,061,156			11,125,823
Commitments and contingencies (Note 11)	—			—
Stockholders' equity:
Preferred stock; $.001 par value; 5,000,000 shares authorized and 0 shares issued and outstanding	—			—
Common stock; $.001 par value; 130,000,000 shares authorized; 107,834,036 issued and 106,889,570 outstanding as of September 30, 2014 and 104,425,614 issued and 104,375,614 outstanding as of December 31, 2013	107,834			104,426
Additional paid-in capital	157,893,595			147,284,219
Treasury stock (944,466 shares as of September 30, 2014 and 50,000 shares as of December 31, 2013 at cost)	(5,337,077		)	(25,000		)
Accumulated deficit	(71,408,101		)	(73,795,575		)
Total stockholders' equity	81,256,251			73,568,070
Total liabilities and stockholders' equity	$	97,317,407		$	84,693,893

See notes to condensed consolidated financial statements

4

MIMEDX GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited)

	Three Months Ended September 30,						Nine Months Ended  September 30,
	2014			2013			2014			2013
Net sales	$	33,517,762		$	16,115,708		$	78,650,148		$	41,186,943
Cost of sales	3,348,005			2,113,438			9,065,248			6,216,940
Gross margin	30,169,757			14,002,270			69,584,900			34,970,003
Operating expenses:
Research and development expenses	2,014,306			1,287,361			5,204,153			3,458,585
Selling, general and administrative expenses	24,192,479			12,711,225			61,237,264			31,948,607
Amortization of intangible assets	232,079			259,575			695,368			789,809
Operating income (loss)	3,730,893			(255,891		)	2,448,115			(1,226,998		)
Other income (expense), net
Amortization of debt discount	—			—			—			(1,328,439		)
Interest expense, net	(9,126		)	(4,527		)	(38,579		)	(32,503		)
Income (loss) before income tax provision	3,721,767			(260,418		)	2,409,536			(2,587,940		)
Income tax provision	(22,062		)	(46,700		)	(22,062		)	(96,975		)
Net income (loss)	$	3,699,705		$	(307,118	)	$	2,387,474		$	(2,684,915	)
Net income (loss) per common share - basic	$	0.03		$	—		$	0.02		$	(0.03	)
Net income (loss) per common share - diluted	$	0.03		$	—		$	0.02		$	(0.03	)
Weighted average shares outstanding - basic	105,756,945			96,914,856			105,331,344			95,429,988
Weighted average shares outstanding - diluted	112,814,658			96,914,856			112,525,016			95,429,988

See notes to condensed consolidated financial statements

5

MIMEDX GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY

For the Nine Months Ended September 30, 2014

(unaudited)

				Additional Paid-in Capital
	Common Stock						Treasury Stock				Accumulated Deficit
	Shares Issued	Amount					Shares	Amount						Total
Balance December 31, 2013	104,425,614	$	104,426	$	147,284,219		50,000	$	(25,000	)	$	(73,795,575	)	$	73,568,070
Share-based compensation expense	—	—		8,160,678			—	—			—			8,160,678
Exercise of stock options	1,146,987	1,147		1,495,943			—	—			—			1,497,090
Exercise of warrants	1,079,583	1,080		867,545			—	—			—			868,625
Issuance of restricted stock	1,168,694	1,168		(1,168		)	—	—			—			—
Shares issued for services performed	13,158	13		86,378			—	—			—			86,391
Stock repurchase	—	—		—			894,466	(5,312,077		)	—			(5,312,077		)
Net income	—	—		—			—	—			2,387,474			2,387,474
Balance September 30, 2014	107,834,036	$	107,834	$	157,893,595		944,466	$	(5,337,077	)	$	(71,408,101	)	$	81,256,251

See notes to condensed consolidated financial statements

6

MIMEDX GROUP, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

	Nine Months Ended  September 30,
	2014			2013
Cash flows from operating activities:
Net income (loss)	$	2,387,474		$	(2,684,915	)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation	864,158			422,524
Amortization of intangible assets	695,368			789,809
Amortization of debt discount and deferred financing costs	—			1,328,439
Share-based compensation	8,160,678			4,155,005
Increase (decrease) in cash resulting from changes in:
Accounts receivable	(7,211,636		)	(6,052,963		)
Inventory	(857,914		)	(1,510,278		)
Prepaid expenses and other current assets	(630,882		)	(913,644		)
Other assets	—			70,000
Accounts payable	355,269			954,094
Accrued compensation	3,859,434			1,807,143
Accrued expenses	584,023			419,462
Accrued interest	—			(41,641		)
Other liabilities	311,520			132,302
Net cash flows from operating activities	8,517,492			(1,124,663		)
Cash  flows from investing activities:
Purchases of equipment	(1,830,261		)	(2,008,407		)
Patent application costs	(477,095		)	(526,566		)
Net cash flows from investing activities	(2,307,356		)	(2,534,973		)
Cash flows from financing activities:
Proceeds from exercise of warrants	868,625			1,480,124
Proceeds from exercise of stock options	1,497,090			1,516,580
Stock repurchase	(5,312,077		)	—
Principal payments of equipment leases	(88,522		)	(29,797		)
Net cash flows from financing activities	(3,034,884		)	2,966,907
Net change in cash	3,175,252			(692,729		)
Cash and cash equivalents, beginning of period	44,077,751			6,754,485
Cash and cash equivalents, end of period	$	47,253,003		$	6,061,756

See notes to condensed consolidated financial statements

7

MIMEDX GROUP, INC.

NOTES TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2014 AND 2013

1. Basis of Presentation

The accompanying 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.  Changes to GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of Accounting Standards Updates (“ASU’’) to the FASB’s Accounting Standards Codification (“ASC”).  In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the results of operations for the periods presented have been included.  Operating results for the nine months endedSeptember 30, 2014 and 2013, are not necessarily indicative of the results that may be expected for the fiscal year.  The balance sheet at December 31, 2013, has been 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. 

You should read these condensed consolidated financial statements together with the historical consolidated financial statements of the Company for the year ended December 31, 2013, included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013, filed with the SEC on March 4, 2014. 

The Company operates in one business segment, Regenerative Biomaterials, which includes the design, manufacture, and marketing of products and tissue processing services for the Wound Care, Surgical, Sports Medicine, Ophthalmic and Dental market categories. The Company's biomaterial platform technologies include tissue technologies, AmnioFix® and EpiFix®, and device technology, CollaFix™.

2. Significant Accounting Policies

Please see Note 2 to the Company's Consolidated Financial Statements included in the Company’s Form 10-K for the fiscal year ended December 31, 2013, for a description of all significant accounting policies. 

Use of Estimates

The preparation of financial statements in conformity with 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 financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. 

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.

The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses in the Company’s existing receivables. The Company determines the allowance based on factors such as historical collection experience, customers' current creditworthiness, customer concentrations, age of accounts receivable balance and general economic conditions that may affect the customers' ability to pay. 

Inventories

Inventory is valued at standard cost, which approximates actual cost computed on a first-in, first-out basis, not in excess of market value. The Company assesses the valuation of its inventory on a periodic basis and makes adjustments to the value for estimated excess and obsolete inventory based on estimates about future demand. The excess balance determined by this analysis becomes the basis for the Company's excess inventory charge. The Company's excess inventory review process includes analysis of sales forecasts, managing product rollovers and working with operations to maximize recovery of excess inventory.

Revenue Recognition

The Company sells its products through a combination of a direct sales force and independent stocking distributors and representatives in the U.S. and independent distributors in international markets. The Company recognizes revenue when title to the goods transfers to customers, provided there are no material remaining performance obligations required of the Company or any matters of customer acceptance. In cases where the Company utilizes distributors or ships product directly to the end user, it recognizes revenue upon shipment provided all revenue recognition criteria have been met. A portion of the Company's revenue is generated from inventory maintained at hospitals or with the field representatives. For these products, revenue is

8

recognized at the time the product has been used or implanted. The Company records estimated sales returns, discounts and allowances as a reduction of net sales in the same period revenue is recognized.  

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 and are included in Intangible Assets in the Condensed Consolidated Balance Sheets. The Company capitalized approximately $477,000 of patent costs during the first nine months of 2014. The Company capitalized approximately $527,000 of patent costs during the first nine months of 2013.

Recent Accounting Pronouncements

The Company considers the applicability and impact of all ASUs issued effective and not yet effective. In May 2014, the Financial Accounting Standards Board issued ASU 2014-09, “Revenue Recognition - Revenue from Contracts with Customers” (ASU 2014-09) that requires companies to recognize revenue when a customer obtains control rather than when companies have transferred substantially all risks and rewards of a good or service. This update is effective for annual reporting periods beginning on or after December 15, 2016 and interim periods therein and requires expanded disclosures. We are currently assessing the impact the adoption of ASU 2014-09 will have on our condensed consolidated financial statements. All other ASUs issued effective and not yet effective for the nine months endedSeptember 30, 2014, 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 or results of operations.

3. Liquidity and Management’s Plans

As of September 30, 2014, the Company had approximately $47,253,000 of cash and cash equivalents.  The Company reported total current assets of approximately $77,264,000 and current liabilities of approximately $14,449,000 as of September 30, 2014.  The Company believes that its anticipated cash from operating and financing activities, and existing cash and cash equivalents will enable the Company to meet its operational liquidity needs and fund its planned investing activities for the next twelve months.

4. Inventories

Inventories consisted of the following items as of September 30, 2014, and December 31, 2013:

	September 30, 2014			December 31, 2013
Raw materials	$	270,191		$	202,414
Work in process	3,228,525			2,951,704
Finished goods	1,664,729			1,048,886
	5,163,445			4,203,004
Reserve for obsolescence	(424,755		)	(322,228		)
Inventory, net	$	4,738,690		$	3,880,776

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5. Property and Equipment

Property and equipment consist of the following as of September 30, 2014, and December 31, 2013:

	September 30, 2014			December 31, 2013
Leasehold improvements	$	2,491,731		$	2,319,928
Lab and clean room equipment	2,804,547			2,025,263
Furniture and office equipment	2,090,776			1,240,466
Construction in progress	831,183			802,319
	8,218,237			6,387,976
Less accumulated depreciation	(3,166,028		)	(2,301,870		)
	$	5,052,209		$	4,086,106

Included in net property and equipment is approximately $427,000 of equipment covered under capital leases. The corresponding liability is included in other liabilities in the accompanying Condensed Consolidated Balance Sheets. Interest rates for these leases range from approximately 3% to 12% with maturity dates from September 2016 to January 2018.

Also included is approximately $1.0 million in leasehold improvements paid for by the landlord of the Company's new facility with a corresponding liability included in other liabilities which is amortized over the term of the lease.

Depreciation expense for the nine months ended September 30, 2014 and 2013, was approximately $864,000 and $423,000, respectively, and $313,000 and $185,000 for the three months ended September 30, 2014 and 2013, respectively.

6. Intangible Assets and Royalty Agreement

Intangible assets are summarized as follows:

	Weighted Average Amortization Lives	September 30, 2014 Cost			December 31, 2013 Cost
Licenses (a) (b)	10 years	$	1,009,000		$	1,009,000
Patents & Know How (b)	14 years	7,888,856			7,798,910
Customer & Supplier Relationships (b)	14 years	3,761,000			3,761,000
Tradenames & Trademarks (b)	indefinite	1,008,000			1,008,000
In Process Research & Development (b)	indefinite	25,000			25,000
Patents in Process (c)	indefinite	967,136			579,987
Total		14,658,992			14,181,897
Less Accumulated amortization		(3,698,692		)	(3,003,324		)
Net		$	10,960,300		$	11,178,573

(a) On January 29, 2007, the Company acquired a license from Shriners Hospitals for Children and University of South Florida Research Foundation, Inc. in the amount of $996,000.  Within 30 days after the receipt by the Company of approval by the FDA allowing the sale of the first licensed product, the Company is required to pay an additional $200,000 to the licensor.  Due to its contingent nature, this amount is not recorded as a liability. The Company will also be required to pay a royalty of 3% on all commercial sales revenue from the licensed products. The Company is also obligated to pay a $50,000 minimum annual royalty payment over the life of the license. As of September 30, 2014, this license had a remaining net book value of approximately $234,000.

(b) On January 5, 2011, the Company acquired Surgical Biologics, LLC.  As a result, the Company recorded intangible assets for Customer & Supplier Relationships of $3,761,000, Patents & Know-How of $7,690,000, Licenses of $13,000, Trade Names & Trademarks of $1,008,000 and In-Process Research & Development of $25,000. For the nine months ended September 30, 2014 an additional $89,946 of costs associated with patents granted during the period were capitalized and included in Patents & Know-How subject to amortization.

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(c) Patents in Process consist of capitalized external legal and other registration costs in connection with internally developed tissue-based patents that are pending. Once issued, the costs associated with a given patent will be included in Patents & Know-How under intangible assets subject to amortization.

Amortization expense for the nine months ended September 30, 2014 and 2013, was approximately $695,000, and $790,000, respectively, and $232,000 and $260,000 for the three months ended September 30, 2014 and 2013, respectively.

Expected future amortization of intangible assets as of September 30, 2014, is as follows:

Year ending December 31,	Estimated Amortization Expense
2014 (a)	$	232,306
2015	929,226
2016	929,226
2017	839,593
2018	829,626
Thereafter	6,192,323
	$	9,952,300

(a) Estimated amortization expense for the year ending December 31, 2014, includes only amortization to be recorded after September 30, 2014.

7. Net Income (Loss) Per Share

Basic net income (loss) per common share is computed using the weighted-average number of common shares outstanding during the period.  Diluted net loss per common share is computed using the weighted-average number of common and dilutive common equivalent shares from stock options, restricted stock, and warrants (see Note 8) using the treasury stock method.  For the three and nine months ended September 30, 2013, diluted net loss per share is the same as basic net loss per share, as the inclusion of equivalent shares from outstanding common stock options, restricted stock, and warrants would be anti-dilutive.

The following table sets forth the computation of basic and diluted net income (loss) per share:

	Three months ended  September 30,					Nine months ended September 30,
	2014		2013			2014		2013
Net income (loss)	$	3,699,705	$	(307,118	)	$	2,387,474	$	(2,684,915	)
Denominator for basic earnings per share - weighted average shares	105,756,945		96,914,856			105,331,344		95,429,988
Effect of dilutive securities: Stock options, restricted stock, and warrants outstanding(a)	7,057,713		—			7,193,672		—
Denominator for diluted earnings per share - weighted average shares adjusted for dilutive securities	112,814,658		96,914,856			112,525,016		95,429,988
Income (loss) per common share - basic	$	0.03	$	—		$	0.02	$	(0.03	)
Income (loss) per common share - diluted	$	0.03	$	—		$	0.02	$	(0.03	)

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(a) Securities outstanding that are included in the computation above, utilizing the treasury stock method for the three and nine months ended September 30, 2014, are as follows:

	Three Months	Nine Months
	September 30, 2014
Outstanding Stock Options	6,651,994	6,752,310
Outstanding Warrants	194,002	275,593
Restricted Stock Awards	211,717	165,769
	7,057,713	7,193,672

Securities outstanding for the three and nine months ended September 30, 2013 were excluded from the computation of diluted earnings per share because they would have been anti - dilutive.

8. Equity

Stock Incentive Plans

The Company has three share-based compensation plans: the MiMedx Group, Inc. Assumed 2006 Stock Incentive Plan (the “2006 Plan”), the MiMedx Inc. 2007 Assumed Stock Plan (the “Assumed 2007 Plan”) and the MiMedx Group Inc. Amended and Restated Assumed 2005 Stock Plan (the “Assumed 2005 Plan”) which provide for the granting of qualified incentive and non-qualified stock options, stock appreciation awards and restricted stock awards to employees, directors, consultants and advisors. The awards are subject to a vesting schedule as set forth in each individual agreement. The Company intends to use only the 2006 Plan to make future grants. The number of assumed options under the Assumed 2005 Plan and Assumed 2007 Plan outstanding at September 30, 2014, totaled 375,000.  On July 28, 2014, the Company's shareholders approved 4,000,000 additional shares to be made available under the 2006 Plan, bringing the maximum number of shares of common stock that can be issued under the 2006 Plan to 26,500,000 at September 30, 2014.

Activity with respect to the stock options is summarized as follows:

	Number  of Shares		Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at January 1, 2014	15,375,960		$	2.46
Granted	2,948,969		7.03
Exercised	(1,146,987	)	1.31
Unvested options forfeited	(249,670	)	4.04
Vested options expired	(84,332	)	0.81
Outstanding at September 30, 2014	16,843,940		3.32		7.5	$	64,630,326
Vested at September 30, 2014	8,987,368		1.87		6.7	47,252,742
Vested or expected to vest at September 30, 2014 (a)	16,515,621		$	3.27	7.5	$	64,242,362

(a) Includes forfeiture adjusted unvested shares.

The intrinsic value of the options exercised during the nine months endedSeptember 30, 2014, was approximately $6,517,614. 

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Following is a summary of stock options outstanding and exercisable at September 30, 2014:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number outstanding	Weighted-Average Remaining Contractual Term (in years)	Weighted- Average Exercise Price		Number Exercisable	Weighted- Average Exercise Price
$0.50 - $0.76	720,364	4.7	$	0.72	720,364	$	0.72
$0.87 - $1.35	6,102,250	6.9	1.20		4,911,058	1.19
$1.40 - $2.29	1,482,701	5.3	1.64		1,361,032	1.65
$2.33 - $3.75	1,842,320	8.0	2.77		889,298	2.69
$3.95 - $5.99	3,443,402	8.6	5.15		911,797	5.02
$6.02 - $8.34	3,252,903	9.0	7.03		193,819	6.37
	16,843,940	7.5	$	3.32	8,987,368	$	1.87

Total unrecognized compensation expense related to granted stock options at September 30, 2014, was approximately $16,675,914 and is expected to be recognized over a weighted-average period of 2.0 years. 

The fair value of options granted by the Company is estimated on the date of grant using the Black-Scholes-Merton option-pricing model that uses assumptions for expected volatility, expected dividends, expected term, and the risk-free interest rate.  Expected volatilities are based on historical volatility of peer companies and other factors estimated over the expected term of the options.  The term of employee options granted is derived using the “simplified method,” which computes expected term as the average of the sum of the vesting term plus the contract term.  The term for non-employee options is generally based upon the contractual term of the option.  The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for the period of the expected term or contractual term as described.

The assumptions used in calculating the fair value of options using the Black-Scholes-Merton option-pricing model are set forth in the following table:

	Nine Months Ended September 30,
	2014	2013
Expected volatility	63.6- 64.5%	61.41 - 64.56%
Expected life (in years)	5.0 - 6.0	6.0
Expected dividend yield	—	—
Risk-free interest rate	1.69% - 1.96%	0.85% -1.88%

The weighted-average grant date fair value for options granted during the nine months endedSeptember 30, 2014, was approximately $4.09.

Restricted Stock Awards                                                            

Activity with respect to restricted stock awards is summarized as follows: 

	Number of Shares		Weighted-Average Grant Date Fair Value
Unvested at December 31, 2013	576,550		$5.53
Granted	592,864		7.05
Vested	(154,758	)	5.72
Forfeited	(720	)	7.24
Unvested at September 30, 2014	1,013,936		$6.40

13

As of September 30, 2014, there was approximately $4,983,312 of total unrecognized stock-based compensation related to time-based, nonvested restricted stock.  That expense is expected to be recognized on a straight-line basis over a weighted-average period of 2.1 years. All shares noted above as unvested are considered issued and outstanding at September 30, 2014.

Additionally, during the nine months ended September 30, 2014, 5,611 shares of common stock valued at approximately $39,000 were issued under the 2006 Plan to a consultant in return for services performed.

For the three and nine months ended September 30, 2014 and 2013, the Company recognized stock-based compensation as follows: 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Cost of sales	$	70,424	$	75,287	$	242,689	$	198,119
Research and development	170,426		110,694		493,078		309,461
Selling, general and administrative	2,781,112		1,481,785		7,424,911		3,647,425
	$	3,021,962	$	1,667,766	$	8,160,678	$	4,155,005

Warrants

The Company grants common stock warrants in connection with equity share purchases by investors as an additional incentive for providing long term equity capital to the Company and as additional compensation to consultants and advisors.  The warrants are granted at negotiated prices in connection with the equity share purchases and at the market price of the common stock in other instances.  The warrants have been issued for terms of five years.

Following is a summary of the warrant activity for the nine months endedSeptember 30, 2014:

	Number  of Warrants		Weighted-Average Exercise Price per warrant
Warrants outstanding at January 1, 2014	1,284,816		$	0.90
Warrants exercised	(1,079,583	)	0.80
Warrants outstanding at September 30, 2014	205,233		$	1.42

Warrants may be exercised in whole or in part by notice given by the holder accompanied by payment in cash of an amount equal to the warrant exercise price multiplied by the number of warrant shares being purchased.

These warrants are not mandatorily redeemable, and do not obligate the Company to repurchase its equity shares by transferring assets or issuing a variable number of shares. 

The warrants require that the Company deliver shares as part of a physical settlement and do not provide for a net-cash settlement. 

All of the Company's warrants are classified as equity as of September 30, 2014, and December 31, 2013 and expire at various times through the end of 2016.

9. Income taxes

The effective tax rates for continuing operations of 0.92% and (3.75%), respectively, for the nine months ended September 30, 2014 and September 30, 2013, were determined using an estimated annual effective tax rate and after considering any discrete items for such periods. Due to a valuation allowance against the Company's U.S. deferred tax assets, the effective tax rate for the nine months ended September 30, 2014, does not include the benefit of the current period U.S. tax loss. A valuation allowance is recorded to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that a portion or none of the deferred tax assets will be realized.  After consideration of all the evidence, including reversal

14

of deferred tax liabilities, future taxable income and other factors, management has determined that a full valuation allowance is necessary as of September 30, 2014. As a result, income tax expense for the nine months ended September 30, 2014, is primarily due to income tax expense in certain state jurisdictions.

10. Supplemental disclosure of cash flow and non-cash investing and financing activities:

Selected cash payments, receipts, and noncash activities are as follows:

	Nine Months Ended September 30,
	2014		2013
Cash paid for interest	$	38,347	$	22,971
Prepaid income taxes	80,953		96,967
Purchases of equipment financed through capital leases	—		107,259
Stock issuance of 13,158 shares in exchange for services performed	86,391		—
Stock issuance of 5,272,004 shares in exchange for convertible debt	—		5,272,004
Tenant improvement incentive	—		996,866

11. Contractual Commitments and Contingencies

Contractual Commitments

In addition to the Capital Leases noted above in Note 5, the Company has entered into operating lease agreements for facility space and equipment. These leases expire over the next five years and generally contain renewal options. The Company anticipates that most of these leases will be renewed or replaced upon expiration. The Company also has commitments for meeting space and to various charitable organizations. The estimated annual lease payments, meeting space and charitable organization commitments are as follows:

12-month period ended September 30
2015	$	1,879,579
2016	1,863,354
2017	1,523,923
2018	1,463,054
2019	478,325
	$	7,208,235

Rent expense for the nine months ended September 30, 2014 and 2013, was approximately $847,000 and $762,000, respectively, and was $282,000 and $364,000 for the three months ended September 30, 2014 and 2013, respectively, and is allocated among cost of sales, research and development, and selling, general and administrative expenses.

Letters of Credit

As a condition of the leases for the Company's facilities, the Company is obligated under standby letters of credit in the amount of approximately $500,000. These obligations are reduced at various times over the lives of the leases.

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FDA Untitled Letter and Related Litigation

Initially, MiMedx processed its tissue allografts in only one form, which was a sheet form. In 2011, MiMedx introduced a micronized form of its sheet allografts.

The FDA has specific regulations governing human cells, tissues and cellular and tissue-based products, or HCT/Ps. An HCT/P is a product containing or consisting of human cells or tissue intended for transplantation into a human patient. If an HCT/P meets the criteria for regulation solely under Section 361 of the Public Health Service Act (so-called “361 HCT/Ps”), no FDA review for safety and effectiveness under a drug, device, or biological product marketing application is required.

MiMedx believes that all of its tissue products qualify as 361 HCT/Ps. On August 28, 2013, however, the FDA issued an Untitled Letter alleging that the Company’s micronized allografts do not meet the criteria for regulation solely under Section 361 of the Public Health Service Act and that, as a result, MiMedx would need a biologics license to lawfully market the micronized products.

In December 2013, the FDA clarified the basis for its position regarding the micronized products. Specifically, the FDA explained its belief that “[c]ryo-milling cut, dehydrated amniotic/chorionic membrane results in a micron-sized powder and the loss of the tensile strength and elasticity that are essential characteristics of the original amniotic/chorionic tissue relating to its utility to function as a ‘physical membrane’ (i.e. covering, barrier).” The Company responded to the FDA that while it does not agree with the Agency’s position, it understands the Agency’s interest in further regulating this emerging technology. Accordingly, the Company proposed to the FDA that it would pursue the Investigational New Drug (“IND”) and Biologics License Application (“BLA”) process for certain micronized products, and, in parallel, also proposed to enter into negotiations with the FDA on a plan to transition the micronized products to licensed biological products and continue to market the micronized products under specific conditions.

On July 22, 2014, the Company filed its first IND application with the FDA. The application was allowed, paving the way for a Phase IIb clinical trial of its micronized product for a specified indication of use in anticipation of a BLA, which the Company expects to submit at a future date.  The clinical trial is expected to enroll approximately 150 patients in 10 - 20 clinical sites in the U.S. The Company anticipates initiating the trial in the first half of 2015.

The Company also requested a transition agreement to allow it to continue to market its current micronized products for certain specified uses while pursuing one or more BLAs. The Agency continues to assert that the current form of the Company’s micronized products are more than minimally manipulated and therefore are not eligible for marketing solely under Section 361 of the Public Health Service Act. The Company has asked the FDA to consider alternative formulations of the Company’s particulate products and is awaiting a response. The Company also has conducted tests and has engaged independent laboratories to conduct tests that confirm that tensile strength and elasticity are not diminished by the Company’s micronization process.

If the FDA does allow the Company to continue to market a particulate form of its sheet allografts, they may impose conditions, such as labeling restrictions and compliance with Current Good Manufacturing Practices (“cGMP”). It is also possible that the FDA will not allow the Company to market any form of a particulate product without a biologics license and could even require us to recall our current products. Revenues from micronized products make up about 15% of projected revenues in 2014.

Following the publication of the Untitled Letter from the FDA regarding the Company’s micronized products in September 2013, the trading price of the Company’s stock dropped sharply and several purported class action lawsuits were filed against the Company and certain of its executive officers asserting violations of the Securities Act of 1933 and the Securities Exchange Act of 1934 with respect to various statements and alleged omissions related to the Company’s belief that FDA approval was not required to market its products, including its micronized products. These cases have now all been removed to, and consolidated in, the United States District Court for the Northern District of Georgia. By order dated December 9, 2013, the Court approved the appointment of a lead plaintiff and a lead counsel. A Consolidated Amended Class Action Complaint, containing substantially the same causes of action and claims for relief as the initial complaints, was filed on January 27, 2014. On February 26, 2014, the Company filed a Motion to Dismiss on various grounds. The Court subsequently denied the Company’s Motion to Dismiss.  On September 8, 2014, the Company filed a Motion for Reconsideration, which is currently pending. The Company currently believes that the outcome of this litigation will not have a material adverse impact on the Company's financial position or results of operations.

12. Subsequent Events

None

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Schedule II Valuation and Qualifying Accounts

MIMEDX GROUP, INC. AND SUBSIDIARIES SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS
Three and Nine Months Ended September 30, 2014 and 2013
	Balance at Beginning of Period		Additions charged to Expense or Revenue		Deductions and write-offs			Balance at End of Period
For the Quarter ended September 30, 2014
Allowance for doubtful accounts	$	678,000	$	523,000	$	—		$	1,201,000
Allowance for product returns	270,000		806,000		(399,000		)	677,000
Allowance for obsolescence	352,000		76,000		(3,000		)	425,000
For the Quarter ended September 30, 2013
Allowance for doubtful accounts	44,000		73,000		(2,000		)	115,000
Allowance for product returns	162,000		178,000		(153,000		)	187,000
Allowance for obsolescence	242,000		131,000		—			373,000
For the nine months ended September 30, 2014
Allowance for doubtful accounts	407,000		808,000		(14,000		)	1,201,000
Allowance for product returns	215,000		1,419,000		(957,000		)	677,000
Allowance for obsolescence	322,000		140,000		(37,000		)	425,000
For the nine months ended September 30, 2013
Allowance for doubtful accounts	49,000		99,000		(33,000		)	115,000
Allowance for product returns	88,000		648,000		(549,000		)	187,000
Allowance for obsolescence	159,000		214,000		—			373,000

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Overview

MiMedx Group, Inc. is an integrated developer, manufacturer and marketer of patent-protected regenerative biomaterials and bioimplants processed from human amniotic membrane.

"Innovations in Regenerative Biomaterials" is the framework behind the Company's mission to give physicians products and tissues to help the body heal itself. The Company's biomaterial platform technologies include its tissue technologies, AmnioFix® and EpiFix®. The Company's tissue technologies are processed from human amniotic membrane that is derived from donated placentas. Through MiMedx's donor program, mothers delivering full-term Caesarean section births can elect in advance of delivery to donate the placenta in lieu of having it discarded as medical waste. MiMedx processes the human amniotic membrane utilizing its proprietary Purion® Process, to produce safe and effective allografts. MiMedx® is the leading supplier of amniotic tissue allografts, having supplied over 300,000 allografts for application in the Wound Care, Surgical, Sports Medicine, Ophthalmic and Dental sectors of healthcare.

Recent Events

On September 5, 2014, the Company entered into distribution agreement with Zimmer, Inc. to provide the Company's tissue based products for musculoskeletal applications. The initial term of the agreement is three years.

FDA Untitled Letter

As described in detail in Item 1 Financial Statements- Note 11, on August 28, 2013, the FDA issued an Untitled Letter alleging that the Company’s micronized allografts do not meet the criteria for regulation solely under Section 361 of the Public Health Service Act and that, as a result, MiMedx would need a biologics license to lawfully market the micronized products. The Company responded to the FDA that while it does not agree with the Agency’s position, it understands the Agency’s interest in further regulating this emerging technology. Accordingly, the Company proposed to the FDA that it would pursue the Investigational New Drug (“IND”) and Biologics License Application (“BLA”) process for certain micronized products, and, in parallel, also proposed to enter into negotiations with the FDA on a plan to transition the micronized products to licensed biological products and continue to market the micronized products under specific conditions.

On July 22, 2014, the Company filed its first IND application with the FDA. The application was allowed, paving the way for a Phase IIb clinical trial of its micronized product for a specified indication of use in anticipation of a BLA, which the Company expects to submit at a future date.  The clinical trial is expected to enroll approximately 150 patients in 10 - 20 clinical sites in the U.S. The Company anticipates initiating the trial in the first half of 2015.

The Company also requested a transition agreement to allow it to continue to market its current micronized products for certain specified uses while pursuing one or more BLAs. The Agency continues to assert that the current form of the Company’s micronized products are more than minimally manipulated and therefore are not eligible for marketing solely under Section 361 of the Public Health Service Act. The Company has asked the FDA to consider alternative formulations of the Company’s particulate products and is awaiting a response. The Company also has conducted tests and has engaged independent laboratories to conduct tests that confirm that tensile strength and elasticity are not diminished by the Company’s micronization process.

If the FDA does allow the Company to continue to market a particulate form of its sheet allografts, they may impose conditions, such as labeling restrictions and compliance with Current Good Manufacturing Practices (“cGMP”). It is also possible that the FDA will not allow the Company to market any form of a particulate product without a biologics license and could even require us to recall our current products. Revenues from micronized products make up about 15% of projected revenues in 2014.

18

Results of Operations Comparison for the Three Months Ended September 30, 2014, to the Three Months Ended September 30, 2013

Revenue

Total revenue increased approximately $17.4 million, or 108%, to $33.5 million for the three months ended September 30, 2014, as compared to $16.1 million for the three months ended September 30, 2013. The increase in revenue as compared to the prior year is due primarily to increased wound care sales of EpiFix® in both commercial and government accounts.

Tissue Processing Costs and Cost of Products Sold

Cost of products sold as a percentage of revenue improved to 10.0% from 13.1% as compared to prior year. The improvement was due primarily to the increase in direct sales revenue, improved product mix and higher production rates that absorb a greater percentage of fixed manufacturing costs.

Research and Development Expenses

The Company's research and development expenses (“R&D expenses”) increased approximately $0.7 million, or 56.5% , to $2.0 million during the three months ended September 30, 2014, compared to approximately $1.3 million in the prior year. The increase is primarily related to increased investments in clinical trials and personnel costs.

R&D expenses consist primarily of internal personnel costs, expenses of clinical trials, fees paid to external consultants, and the cost of supplies and instruments used in the Company's laboratories.

Selling, General and Administrative Expenses

Selling, General and Administrative expenses for the three months ended September 30, 2014, increased approximately $11.5 million to $24.2 million compared to $12.7 million for the three months ended September 30, 2013. Selling expense increases were driven by costs associated with expanding the Company's direct sales organization, increased commissions due to higher sales volume and an increase in share-based compensation. Additional spending increases included support costs related to medical reimbursement, including the Company's reimbursement hotline, information technology infrastructure to help manage the growth of the business, and increased share-based compensation expense. Selling, General and Administrative expenses consist of personnel costs, professional fees, sales commissions, sales training costs, industry trade show fees and expenses, product promotion and product literature costs, facilities costs and other sales, marketing and administrative costs, depreciation and amortization, and share-based compensation.

Net Interest Expense

The Company recorded net interest expense of approximately $9,000 during the three months ended September 30, 2014, compared with approximately $5,000 of financing and net interest expense during the three months ended September 30, 2013.  

Results of Operations Comparison for the Nine Months Ended September 30, 2014 to the Nine Months Ended September 30, 2013

Revenue

Total revenue increased approximately $37.5 million, or 91.0%, to $78.7 million for the nine months ended September 30, 2014, as compared to $41.2 million for the nine months ended September 30, 2013. The increase in revenue as compared to the prior year is due primarily to increased wound care sales of EpiFix® in both commercial and government accounts.

Tissue Processing Costs and Cost of Products Sold

Cost of products sold as a percentage of revenue improved to 11.5% from 15.1% as compared to prior year. The improvement was due primarily to the increase in direct sales revenue, improved product mix and higher production rates that absorb a greater percentage of fixed manufacturing costs.

19

Research and Development Expenses

The Company's R&D expenses increased approximately $1.7 million or 50.5% to $5.2 million during the nine months ended September 30, 2014, compared to approximately $3.5 million in the prior year. The increase is primarily related to increased investments in clinical trials, and personnel costs.

R&D expenses consist primarily of internal personnel costs, expenses of clinical trials, fees paid to external consultants, and the cost of supplies and instruments used in the Company's laboratories.

Selling, General and Administrative Expenses

Selling, General and Administrative expenses for the nine months ended September 30, 2014, increased approximately $29.3 million to $61.2 million compared to $31.9 million for the nine months ended September 30, 2013. Selling expense increases were driven by costs associated with building a direct sales organization, increased commissions due to higher sales volume and an increase in share-based compensation. Additional spending increases included support costs related to medical reimbursement, including the Company's reimbursement hotline, information technology infrastructure to help manage the growth of the business, and increased share-based compensation expense. Selling, General and Administrative expenses consist of personnel costs, professional fees, sales commissions, sales training costs, industry trade show fees and expenses, product promotion and product literature costs, facilities costs and other sales, marketing and administrative costs, depreciation and amortization, and share-based compensation.

Net Interest Expense

The Company recorded net interest expense of approximately $39,000 during the nine months ended September 30, 2014, compared with approximately $1,361,000 of financing and net interest expense during the nine months ended September 30, 2013.  The decrease of approximately $1,322,000 is primarily due to the conversion and payoff of the Company's Convertible Senior secured promissory notes in early 2013.  The following table summarizes the interest charges for the nine months ended September 30, 2014 and 2013, respectively:

	Nine Months Ended September 30,
	2014						2013
	Debt Discount		Interest Expense		Total		Debt Discount		Accrued Interest		Interest Expense		Total
Convertible Senior secured promissory notes	$	—	$	—	$	—	$	1,328,439	$	11,571	$	—	$	1,340,010
Other	—		38,579		38,579		—		—		20,932		20,932
	$	—	$	38,579	$	38,579	$	1,328,439	$	11,571	$	20,932	$	1,360,942

Liquidity and Capital Resources

Revenue continues to increase quarter - over - quarter while management strives to maintain tight controls over spending. As of September 30, 2014, the Company had approximately $47.3 million of cash and cash equivalents. The Company reported total current assets of approximately $77.3 million and total current liabilities of approximately $14.4 million at September 30, 2014, which represents a current ratio of 5.4 as of September 30, 2014. Management believes that its anticipated cash from operating and financing activities, and existing cash and cash equivalents will enable the Company to meet its operational liquidity needs and fund its planned investing activities for the next year.

On May 12, 2014, the Company announced that its Board of Directors had authorized the repurchase of up to $10 million of its common stock from time to time, through December 31, 2014. The timing and amount of repurchases, if any, will depend upon the Company's stock price, economic and market conditions, regulatory requirements, and other corporate considerations. The Company may initiate, suspend or discontinue purchases under the stock repurchase program at any time. From the date of its initial authorization through September 30, 2014, the Company has repurchased approximately 894,000 shares under this authorization with an approximate cost of $5,285,000 excluding broker commissions.

20

Contingencies

See Part II, Item 1. Legal Proceedings herein.

Contractual Obligations

Contractual obligations associated with ongoing business activities are expected to result in cash payments in future periods.  The table below summarizes the amounts and estimated timing of these future cash payments as of September 30, 2014:

			Less than
Contractual Obligations	TOTAL		1 year		1-3 years		3-5 years
Capital lease obligations	$	277,705	$	115,088	$	154,014	$	8,603
Operating lease obligations	6,295,987		1,350,346		3,004,263		1,941,378
Charitable contribution obligations	300,000		300,000		—		—
Meeting space commitments	612,248		229,233		383,015		—
	$	7,485,940	$	1,994,667	$	3,541,292	$	1,949,981

Discussion of cash flows

Net cash from operations during the three months ended September 30, 2014 increased approximately $7.2 million to approximately $8.9 million compared to $1.7 million generated from operating activities during the three months ended September 30, 2013, primarily due to an increase in Net income and the increase in adjustments to Net income for share-based compensation. Net cash used in investing activities during the three months ended September 30, 2014, decreased approximately $0.2 million to $0.9 million compared to $1.1 million used during the comparative period in 2013, primarily due to decreased purchases of equipment. Net cash used in financing activities was $0.1 million during the three months ended September 30, 2014, compared to approximately $1.3 million of cash flows received from financing activities for the three months ended September 30, 2013, primarily due to $0.7 million of stock repurchases during the quarter and fewer exercises of warrants and stock options.

Net cash from operations during the nine months endedSeptember 30, 2014, increased approximately $9.6 million to approximately $8.5 million compared to $1.1 million used in operating activities for the nine months endedSeptember 30, 2013, primarily attributable to the generation of net income compared to a net loss for the previous year and the increase in adjustments to net income for share-based compensation.

Net cash used in investing activities during the nine months endedSeptember 30, 2014, was $2.3 million compared to $2.5 million for 2013. Funds were used to purchase equipment to expand production capacity and capitalize patent application costs.

Net cash used in financing activities during the nine months endedSeptember 30, 2014, increased approximately $6.0 million to $3.0 million compared to $3.0 million of cash flows received from financing activities during the nine months endedSeptember 30, 2013. Cash flows used in financing activities during the nine months include approximately $5.3 million for stock repurchases, partially offset by $0.9 million from the exercise of warrants and $1.5 million from the exercise of stock options. For the nine months ended September 30, 2013, the Company received approximately $1.5 million each from the exercise of warrants and from the exercise of stock options.

Due to the material amount of non-cash related items included in the Company results of operations, the Company reports an Adjusted EBITDA metric which provides management with a clearer view of operational use of cash (see the table below). The Company's Adjusted EBITDA for the three months ended September 30, 2014, was approximately $7.3 million which is an improvement of $5.4 million as compared to the three months ended September 30, 2013. The improvement was primarily the result of the generation of Net income compared to a Net loss for the prior year. The Company's Adjusted EBITDA for the first nine months of 2014 was approximately $12.2 million, which is an improvement of approximately $8.0 million as compared to the comparable period in the prior year. This improvement was also the result of the generation of Net income compared to a Net loss for the prior year and the increase in share-based compensation.

21

Adjusted EBITDA is a non-GAAP measure. Non-GAAP financial measures are commonly used in the industry and are presented because management believes they provide relevant and useful information to investors. However, there are limitations to using these non-GAAP financial measures. Adjusted EBITDA is not indicative of cash provided or used by operating activities and may differ from comparable information provided by other companies. Adjusted EBITDA should not be considered in isolation, as an alternative to, or more meaningful than measures of financial performance determined in accordance with GAAP. The following table presents a reconciliation of Adjusted EBITDA to the most closely related financial measure reported under GAAP for the three and nine months ended September 30, 2014 and 2013, respectively.

	Three Months Ended September 30,					Nine Months Ended September 30,
	2014		2013			2014		2013
Net Income (Loss) (Per GAAP)	$	3,699,705	$	(307,118	)	$	2,387,474	$	(2,684,915	)
Add back:
Income Taxes	22,062		46,700			22,062		96,975
Financing expense associated with beneficial conversion of Senior Secured Promissory Notes	—		—			—		1,328,439
Other Interest Expense, net	9,126		4,527			38,579		32,503
Depreciation Expense	313,177		184,590			864,158		422,524
Amortization Expense	232,078		259,575			695,368		789,809
Share - Based Compensation	3,021,962		1,667,766			8,160,678		4,155,005
Income Before Interest, Taxes, Depreciation, Amortization and Share-Based Compensation	$	7,298,110	$	1,856,040		$	12,168,319	$	4,140,340

Critical Accounting Policies

In preparing financial statements, the Company follows accounting principles generally accepted in the United States, which require the Company to make certain estimates and apply judgments that affect its financial position and results of operations. Management continually reviews the Company's accounting policies and financial information disclosures. A summary of significant accounting policies that require the use of estimates and judgments in preparing the financial statements was provided in the Company's Annual Report on Form 10-K for the year ended December 31, 2013.  During the quarter covered by this report, there were no material changes to the accounting policies and assumptions previously disclosed.

Recent Accounting Pronouncements

For the effect of recent accounting pronouncements, see Note 2 to the Consolidated Financial Statements contained herein.

Off-Balance Sheet Arrangements

The Company has no off-balance sheet arrangements.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Not applicable.

22

Item 4. Controls and Procedures

Disclosure Controls and Procedures

As required by Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the Company carried out an evaluation of the effectiveness of the design and operation of its disclosure controls and procedures as of the end of the period covered by this report. This evaluation was carried out under the supervision and with the participation of Company management, including its Chief Executive Officer and Chief Financial Officer. Based upon that evaluation, the Company's Chief Executive Officer and Chief Financial Officer concluded that the Company's controls and procedures were effective as of the end of the period covered by this report.

Disclosure controls and procedures are controls and other procedures that are designed to ensure that information required to be disclosed in the Company's reports filed or submitted under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures include controls and procedures designed to ensure that information required to be disclosed in the Company's reports filed under the Exchange Act is accumulated and communicated to management, including the Company's Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding disclosures.

Changes in Internal Control over Financial Reporting

There was no change in the Company's internal control over financial reporting that occurred during the quarter ended September 30, 2014, that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.

Limitations on the Effectiveness of Controls

The Company has confidence in its internal controls and procedures. Nevertheless, management, including the Company's Chief Executive Officer and Chief Financial Officer, does not expect that the Company's disclosure procedures and controls or its internal controls will prevent all errors or intentional fraud. An internal control system, no matter how well-conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of such internal controls are met. Further, the design of an internal control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all internal control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, have been detected.

PART II – OTHER INFORMATION

Item 1. Legal Proceedings

Following the publication of an Untitled Letter from the FDA regarding the Company’s micronized products in September 2013, the trading price of the Company’s stock dropped sharply and several purported class action lawsuits were filed against the Company and certain of its executive officers asserting violations of the Securities Act of 1933 and the Securities Exchange Act of 1934 with respect to various statements and alleged omissions related to the Company’s belief that FDA approval was not required to market its products, including its micronized products. These cases have now all been removed to, and consolidated in, the United States District Court for the Northern District of Georgia. By order dated December 9, 2013, the Court approved the appointment of a lead plaintiff and a lead counsel. A Consolidated Amended Class Action Complaint, containing substantially the same causes of action and claims for relief as the initial complaints, was filed on January 27, 2014. On February 26, 2014, the Company filed a Motion to Dismiss on various grounds. The Court subsequently denied the Company’s Motion to Dismiss.  On September 8, 2014, the Company filed a Motion for Reconsideration, which is currently pending. The Company currently believes that the outcome of this litigation will not have a material adverse impact on the Company's financial position or results of operations.

On April 22, 2014, the Company filed a patent infringement lawsuit against Liventa Bioscience, Inc. ("Liventa"), Medline Industries, Inc. ("Medline") and Musculoskeletal Transplant Foundation, Inc. ("MTF") for permanent injunctive relief and unspecified damages. In addition to the allegations of infringement of MiMedx's patents, the lawsuit asserts that Liventa and Medline knowingly and willfully made false and misleading representations about their respective products to providers, patients and in some cases, prospective investors. The suit was filed in the United States District Court for the Northern District of Georgia. In the suit, MiMedx asserts that Liventa (formerly known as AFCell Medical, Inc.), Medline and MTF infringed and continue to infringe certain of the Company’s patents relating to the MiMedx dehydrated human amnion/chorion membrane ("dHACM") allografts. MTF is the processor and Liventa and Medline are the distributors of the allegedly infringing products. On May 30, 2014, the defendants filed answers to the Complaint, denying the allegations in the Complaint. They also raised affirmative defenses of non-infringement, invalidity, laches and estoppel. MTF and Medline also filed counterclaims seeking declaratory judgments of non-infringement and invalidity. On May 16, 2014, the Company also filed a patent infringement lawsuit against Transplant Technology, Inc. d/b/a Bone Bank Allografts (“Bone Bank”) and Texas Human

23

Biologics, Ltd. (“Biologics”) for permanent injunctive relief and unspecified damages. The lawsuit was filed in the Austin Division of the United States District Court for the Western District of Texas. This lawsuit similarly asserts that Bone Bank and Biologics infringed the Company’s patents through the manufacturing and sale of tissue graft products. On July 10, 2014, the defendants filed an answer to the Complaint, denying the allegations in the Complaint. They also raised affirmative defenses of non-infringement and invalidity and filed counterclaims seeking declaratory judgments of non-infringement and invalidity. At the same time, they filed a motion to transfer venue from the Austin Division to the San Antonio Division of the Western District of Texas. The Company has filed a motion in opposition of the transfer. The lawsuits currently are in the discovery and claim construction phases.

Item 1A. Risk Factors

There have been no material changes to the risk factors previously disclosed in the Company's Annual Report on Form 10-K for the year ended December 31, 2013.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

On May 12, 2014, MiMedx Group, Inc. (the “Company”) announced that its Board of Directors had authorized the repurchase of up to $10 million of its common stock from time to time, through December 31, 2014. The timing and amount of repurchases, if any, will depend upon the Company's stock price, economic and market conditions, regulatory requirements, and other corporate considerations. The Company may initiate, suspend or discontinue purchases under the stock repurchase program at any time. Below is a summary of the Company's stock repurchases, before brokerage commissions of approximately $3,300, for the quarter ended September 30, 2014:

	Total number of shares purchased	Average price paid per share	Total amount spent under the plan	Remaining amount to be spent under the plan
Total amount remaining July 1, 2014				$5,460,193
July 1, 2014 - July 31, 2014	52,000	$6.52	$339,167	$5,121,026
August 1, 2014 - August 31, 2014	2,000	$6.79	$13,578	$5,107,448
September 1, 2014 - September 30, 2014	56,266	$6.98	$392,742	$4,714,706
Total for the quarter	110,266		$745,487

During the three months ended September 30, 2014, the Company issued 7,547 shares of common stock valued at approximately $47,400 to a limited liability company in return for services performed in connection with research and development activities. With respect to this issuance, the Company claims exemption from registration of the shares under Section 4(2) of the Securities Act of 1933, as amended, as a sale not involving a public offering.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

24

Item 6. Exhibits

Exhibit Number	Reference	Description
3.1		Articles of Incorporation as filed with the Secretary of State of Florida on March 31, 2008 (incorporated by reference to Exhibit 3.1 filed with the Registrant's Form 10-Q on August 8, 2013)
3.2		Articles of Amendment to Articles of Incorporation as filed with the Secretary of the State of Florida on May 14, 2010 (incorporated by reference to Exhibit 3.2 filed with the Registrant's Form 10-Q on August 8, 2013)
3.3		Articles of Amendment to Articles of Incorporation as filed with the Secretary of the State of Florida on August 8, 2012 (incorporated by reference to Exhibit 3.3 filed with the Registrant's Form 10-Q on August 8, 2013)
3.4		Articles of Amendment to Articles of Incorporation as filed with the Secretary of the State of Florida on November 8, 2012 (incorporated by reference to Exhibit 3.4 filed with the Registrant's Form 10-Q on August 8, 2013)
3.5		Bylaws of MiMedx Group, Inc. (incorporated by reference to Exhibit 3.2 filed with Registrant's Form 8-K filed on April 2, 2008)
3.6		Amendment to the Bylaws of MiMedx Group, Inc. adopted by the Board of Directors on May 11, 2010 (incorporated by reference to Exhibit 3.2 to the Registrant's Form 8-K filed on May 14, 2010)
10.1		Assumed 2006 Stock Incentive Plan as Amended and Restated Effective February 25, 2014, (filed as Exhibit 10.2 to the Company's 8-K filed on March 3, 2014, and incorporated by reference herein)
31.1 #		Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2 #		Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1 #		Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2 #		Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS		XBRL Instance Document
101.SCH		XBRL Taxonomy Extension Schema Document
101.CAL		XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF		XBRL Taxonomy Extension Definition Linkbase Document
101.LAB		XBRL Taxonomy Extension Label Linkbase Document
101.PRE		XBRL Taxonomy Extension Presentation Linkbase Document

# Filed herewith

25

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

November 10, 2014
	By:	/s/ Michael J. Senken
		Michael J. Senken
		Chief Financial Officer
		(principal financial and accounting officer)

26

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO RULES 13a-14(A) AND 15d-14(A)

OF THE SECURITIES EXCHANGE ACT OF 1934

I, Parker H. Petit, certify that:

1. I have reviewed this Form 10-Q for the quarter ended September 30, 2014, of MiMedx Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 10, 2014	/s/ Parker H. Petit
	Parker H. Petit
	Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO RULES 13a-14(A) AND 15d-14(A)

OF THE SECURITIES EXCHANGE ACT OF 1934

I, Michael J. Senken, certify that:

1. I have reviewed this Form 10-Q for the quarter ended September 30, 2014, of MiMedx Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer  and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 10, 2014	/s/ Michael J. Senken
	Michael J. Senken
	Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of MiMedx Group, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Parker H. Petit, Chief Executive Officer of the Company, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, hereby certify, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 10, 2014	/s/ Parker H. Petit
	Parker H. Petit
	Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of MiMedx Group, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michael J. Senken, Chief Financial Officer of the Company, pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, hereby certify, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 10, 2014	/s/ Michael J. Senken
	Michael J. Senken
	Chief Financial Officer

XML

Schedule II - Valuation and Qualifying Accounts (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014	Mar. 31, 2013
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period			$ 407,000	$ 49,000	$ 678,000	$ 44,000
Additions charged to Expense or Revenue	523,000	73,000	808,000	99,000
Deductions and write-offs	0	(2,000)	(14,000)	(33,000)
Balance at End of Period	1,201,000	115,000	1,201,000	115,000	678,000	44,000
Allowance for product returns
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period			215,000	88,000	270,000	162,000
Additions charged to Expense or Revenue	806,000	178,000	1,419,000	648,000
Deductions and write-offs	(399,000)	(153,000)	(957,000)	(549,000)
Balance at End of Period	677,000	187,000	677,000	187,000	270,000	162,000
Allowance for obsolescence
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period			322,000	159,000	352,000	242,000
Additions charged to Expense or Revenue	76,000	131,000	140,000	214,000
Deductions and write-offs	(3,000)	0	(37,000)	0
Balance at End of Period	$ 425,000	$ 373,000	$ 425,000	$ 373,000	$ 352,000	$ 242,000

XML

Intangible Assets and Royalty Agreement (Details) (USD $)	3 Months Ended			9 Months Ended				9 Months Ended				0 Months Ended			9 Months Ended				9 Months Ended		9 Months Ended					9 Months Ended					9 Months Ended					9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013	Dec. 31, 2013	Sep. 30, 2014 Licenses		Dec. 31, 2013 Licenses		Jan. 29, 2007 Licenses Shriners Hospitals for Children and University of South Florida Research Foundation, Inc.	Sep. 30, 2014 Licenses Shriners Hospitals for Children and University of South Florida Research Foundation, Inc.	Jan. 05, 2011 Licenses Surgical Biologics, LLC	Sep. 30, 2014 Patents & Know How		Dec. 31, 2013 Patents & Know How		Sep. 30, 2014 Patents & Know How Surgical Biologics, LLC	Jan. 05, 2011 Patents & Know How Surgical Biologics, LLC	Sep. 30, 2014 Customer & Supplier Relationships		Dec. 31, 2013 Customer & Supplier Relationships		Jan. 05, 2011 Customer & Supplier Relationships Surgical Biologics, LLC	Sep. 30, 2014 Tradenames & Trademarks		Dec. 31, 2013 Tradenames & Trademarks		Jan. 05, 2011 Tradenames & Trademarks Surgical Biologics, LLC	Sep. 30, 2014 In Process Research & Development		Dec. 31, 2013 In Process Research & Development		Jan. 05, 2011 In Process Research & Development Surgical Biologics, LLC	Sep. 30, 2014 Patents in Process		Dec. 31, 2013 Patents in Process
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Lives								10 years	[1],[2]						14 years	[1]					14 years	[1]
Gross Carrying Value								$ 1,009,000	[1],[2]	$ 1,009,000	[1],[2]			$ 13,000	$ 7,888,856	[1]	$ 7,798,910	[1]		$ 7,690,000	$ 3,761,000	[1]	$ 3,761,000	[1]	$ 3,761,000
Weighted Average Amortization Lives, Indefinite Lived																										indefinite	[1]				indefinite	[1]				indefinite	[3]
Gross Carrying Value, Indefinite Lived																										1,008,000	[1]	1,008,000	[1]	1,008,000	25,000	[1]	25,000	[1]	25,000	967,136	[3]	579,987	[3]
Total	14,658,992			14,658,992			14,181,897
Less Accumulated amortization	(3,698,692)			(3,698,692)			(3,003,324)
Net	10,960,300			10,960,300			11,178,573
Acquisition price												996,000
Maximum time of approval												30 days
Contingent payments to licensor													200,000
Contingent royalty to be paid to licensor (in hundredths)													3.00%
Annual royalty payment												50,000
Net book value	9,952,300			9,952,300									234,000
Finite-Lived Intangible Assets, Costs																			89,946
Amortization of intangible assets	232,079		259,575	695,368		789,809
Estimated future amortization expense [Abstract]
2014	232,306	[4]		232,306	[4]
2015	929,226			929,226
2016	929,226			929,226
2017	839,593			839,593
2018	829,626			829,626
Thereafter	6,192,323			6,192,323
Net book value	$ 9,952,300			$ 9,952,300									$ 234,000

[1] On January 5, 2011, the Company acquired Surgical Biologics, LLC. As a result, the Company recorded intangible assets for Customer & Supplier Relationships of $3,761,000, Patents & Know-How of $7,690,000, Licenses of $13,000, Trade Names & Trademarks of $1,008,000 and In-Process Research & Development of $25,000. For the nine months ended September 30, 2014 an additional $89,946 of costs associated with patents granted during the period were capitalized and included in Patents & Know-How subject to amortization.

[2] On January 29, 2007, the Company acquired a license from Shriners Hospitals for Children and University of South Florida Research Foundation, Inc. in the amount of $996,000. Within 30 days after the receipt by the Company of approval by the FDA allowing the sale of the first licensed product, the Company is required to pay an additional $200,000 to the licensor. Due to its contingent nature, this amount is not recorded as a liability. The Company will also be required to pay a royalty of 3% on all commercial sales revenue from the licensed products. The Company is also obligated to pay a $50,000 minimum annual royalty payment over the life of the license. As of September 30, 2014, this license had a remaining net book value of approximately $234,000

[3] Patents in Process consist of capitalized external legal and other registration costs in connection with internally developed tissue-based patents that are pending. Once issued, the costs associated with a given patent will be included in Patents & Know-How under intangible assets subject to amortization.

[4] Estimated amortization expense for the year ending December 31, 2014, includes only amortization to be recorded after September 30, 2014.

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Equity (Tables)

9 Months Ended

Sep. 30, 2014

Equity [Abstract]

Stock Options Activity

Activity with respect to the stock options is summarized as follows:

	Number  of Shares		Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at January 1, 2014	15,375,960		$	2.46
Granted	2,948,969		7.03
Exercised	(1,146,987	)	1.31
Unvested options forfeited	(249,670	)	4.04
Vested options expired	(84,332	)	0.81
Outstanding at September 30, 2014	16,843,940		3.32		7.5	$	64,630,326
Vested at September 30, 2014	8,987,368		1.87		6.7	47,252,742
Vested or expected to vest at September 30, 2014 (a)	16,515,621		$	3.27	7.5	$	64,242,362

(a) Includes forfeiture adjusted unvested shares.

Stock Options Outstanding and Exercisable

Following is a summary of stock options outstanding and exercisable at September 30, 2014:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number outstanding	Weighted-Average Remaining Contractual Term (in years)	Weighted- Average Exercise Price		Number Exercisable	Weighted- Average Exercise Price
$0.50 - $0.76	720,364	4.7	$	0.72	720,364	$	0.72
$0.87 - $1.35	6,102,250	6.9	1.20		4,911,058	1.19
$1.40 - $2.29	1,482,701	5.3	1.64		1,361,032	1.65
$2.33 - $3.75	1,842,320	8.0	2.77		889,298	2.69
$3.95 - $5.99	3,443,402	8.6	5.15		911,797	5.02
$6.02 - $8.34	3,252,903	9.0	7.03		193,819	6.37
	16,843,940	7.5	$	3.32	8,987,368	$	1.87

Fair Value of Options, Valuation Assumptions

The assumptions used in calculating the fair value of options using the Black-Scholes-Merton option-pricing model are set forth in the following table:

	Nine Months Ended September 30,
	2014	2013
Expected volatility	63.6- 64.5%	61.41 - 64.56%
Expected life (in years)	5.0 - 6.0	6.0
Expected dividend yield	—	—
Risk-free interest rate	1.69% - 1.96%	0.85% -1.88%

Restricted Stock Awards Roll Forward

Activity with respect to restricted stock awards is summarized as follows: 

	Number of Shares		Weighted-Average Grant Date Fair Value
Unvested at December 31, 2013	576,550		$5.53
Granted	592,864		7.05
Vested	(154,758	)	5.72
Forfeited	(720	)	7.24
Unvested at September 30, 2014	1,013,936		$6.40

Allocation of Share-based Compensation

For the three and nine months ended September 30, 2014 and 2013, the Company recognized stock-based compensation as follows: 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Cost of sales	$	70,424	$	75,287	$	242,689	$	198,119
Research and development	170,426		110,694		493,078		309,461
Selling, general and administrative	2,781,112		1,481,785		7,424,911		3,647,425
	$	3,021,962	$	1,667,766	$	8,160,678	$	4,155,005

Summary of Warrants Outstanding

Following is a summary of the warrant activity for the nine months endedSeptember 30, 2014:

	Number  of Warrants		Weighted-Average Exercise Price per warrant
Warrants outstanding at January 1, 2014	1,284,816		$	0.90
Warrants exercised	(1,079,583	)	0.80
Warrants outstanding at September 30, 2014	205,233		$	1.42

XML

Supplemental disclosure of cash flow and non-cash investing and financing activities (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Supplemental disclosure of cash flow and non-cash investing and financing activities [Abstract]
Cash paid for interest	$ 38,347	$ 22,971
Prepaid income taxes	80,953	96,967
Purchases of equipment financed through capital leases	0	107,259
Shares issued for services performed	86,391	0
Shares issued for services performed (in shares)	13,158	0
Stock issuance of 5,272,004 shares in exchange for convertible debt	0	5,272,004
Stock issued for convertible debt (in shares)	0	5,272,004
Tenant improvement incentive	$ 0	$ 996,866

XML

Liquidity and Management's Plans

9 Months Ended

Sep. 30, 2014

Liquidity and management's plans [Abstract]

Liquidity and Management's Plans

Liquidity and Management’s Plans

As of September 30, 2014, the Company had approximately $47,253,000 of cash and cash equivalents.  The Company reported total current assets of approximately $77,264,000 and current liabilities of approximately $14,449,000 as of September 30, 2014.  The Company believes that its anticipated cash from operating and financing activities, and existing cash and cash equivalents will enable the Company to meet its operational liquidity needs and fund its planned investing activities for the next twelve months.

XML

Significant Accounting Policies (Details) (Patents [Member], USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net of accumulated amortization	$ 477,000	$ 527,000

XML

Basis of Presentation (Details)	9 Months Ended
	Sep. 30, 2014 segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of business segments	1

XML

Liquidity and Management's Plans (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Liquidity and management's plans [Abstract]
Cash and cash equivalents	$ 47,253,003	$ 44,077,751	$ 6,061,756	$ 6,754,485
Total current assets	77,264,455	65,388,771
Total current liabilities	$ 14,449,229	$ 9,607,867

XML

Inventories (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Raw materials	$ 270,191	$ 202,414
Work in process	3,228,525	2,951,704
Finished goods	1,664,729	1,048,886
Inventory, gross	5,163,445	4,203,004
Reserve for obsolescence	(424,755)	(322,228)
Inventory, net	$ 4,738,690	$ 3,880,776

XML

Significant Accounting Policies

9 Months Ended

Sep. 30, 2014

Accounting Policies [Abstract]

Significant Accounting Policies

Significant Accounting Policies

Please see Note 2 to the Company's Consolidated Financial Statements included in the Company’s Form 10-K for the fiscal year ended December 31, 2013, for a description of all significant accounting policies. 

Use of Estimates

The preparation of financial statements in conformity with 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 financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. 

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.

The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses in the Company’s existing receivables. The Company determines the allowance based on factors such as historical collection experience, customers' current creditworthiness, customer concentrations, age of accounts receivable balance and general economic conditions that may affect the customers' ability to pay. 

Inventories

Inventory is valued at standard cost, which approximates actual cost computed on a first-in, first-out basis, not in excess of market value. The Company assesses the valuation of its inventory on a periodic basis and makes adjustments to the value for estimated excess and obsolete inventory based on estimates about future demand. The excess balance determined by this analysis becomes the basis for the Company's excess inventory charge. The Company's excess inventory review process includes analysis of sales forecasts, managing product rollovers and working with operations to maximize recovery of excess inventory.

Revenue Recognition

The Company sells its products through a combination of a direct sales force and independent stocking distributors and representatives in the U.S. and independent distributors in international markets. The Company recognizes revenue when title to the goods transfers to customers, provided there are no material remaining performance obligations required of the Company or any matters of customer acceptance. In cases where the Company utilizes distributors or ships product directly to the end user, it recognizes revenue upon shipment provided all revenue recognition criteria have been met. A portion of the Company's revenue is generated from inventory maintained at hospitals or with the field representatives. For these products, revenue is recognized at the time the product has been used or implanted. The Company records estimated sales returns, discounts and allowances as a reduction of net sales in the same period revenue is recognized.  

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 and are included in Intangible Assets in the Condensed Consolidated Balance Sheets. The Company capitalized approximately $477,000 of patent costs during the first nine months of 2014. The Company capitalized approximately $527,000 of patent costs during the first nine months of 2013.

Recent Accounting Pronouncements

The Company considers the applicability and impact of all ASUs issued effective and not yet effective. In May 2014, the Financial Accounting Standards Board issued ASU 2014-09, “Revenue Recognition - Revenue from Contracts with Customers” (ASU 2014-09) that requires companies to recognize revenue when a customer obtains control rather than when companies have transferred substantially all risks and rewards of a good or service. This update is effective for annual reporting periods beginning on or after December 15, 2016 and interim periods therein and requires expanded disclosures. We are currently assessing the impact the adoption of ASU 2014-09 will have on our condensed consolidated financial statements. All other ASUs issued effective and not yet effective for the nine months endedSeptember 30, 2014, 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 or results of operations.

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Property and Equipment (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Property and equipment [Line Items]
Property and equipment, gross	$ 8,218,237		$ 8,218,237		$ 6,387,976
Less accumulated depreciation	(3,166,028)		(3,166,028)		(2,301,870)
Property and equipment, net	5,052,209		5,052,209		4,086,106
Capital Leases Interest Rate Effective Percentage Minimum	3.00%		3.00%
Capital Leases Interest Rate Effective Percentage Maximum	12.00%		12.00%
Depreciation	313,000	185,000	864,158	422,524
Leasehold improvements
Property and equipment [Line Items]
Property and equipment, gross	2,491,731		2,491,731		2,319,928
Lab and clean room equipment
Property and equipment [Line Items]
Property and equipment, gross	2,804,547		2,804,547		2,025,263
Furniture and office equipment
Property and equipment [Line Items]
Property and equipment, gross	2,090,776		2,090,776		1,240,466
Construction in progress
Property and equipment [Line Items]
Property and equipment, gross	831,183		831,183		802,319
Assets Held under Capital Leases
Property and equipment [Line Items]
Property and equipment, net	427,000		427,000
Leasehold Improvements Paid by Others
Property and equipment [Line Items]
Property and equipment, net	$ 1,000,000		$ 1,000,000

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CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 47,253,003	$ 44,077,751
Accounts receivable, net	23,304,472	16,092,836
Inventory, net	4,738,690	3,880,776
Prepaid expenses and other current assets	1,968,290	1,337,408
Total current assets	77,264,455	65,388,771
Property and equipment, net of accumulated depreciation	5,052,209	4,086,106
Goodwill	4,040,443	4,040,443
Intangible assets, net of accumulated amortization	10,960,300	11,178,573
Total assets	97,317,407	84,693,893
Current liabilities:
Accounts payable	2,759,409	2,490,531
Accrued compensation	9,448,245	5,588,811
Accrued expenses	1,989,997	1,405,974
Other current liabilities	251,578	122,551
Total current liabilities	14,449,229	9,607,867
Other liabilities	1,611,927	1,517,956
Total liabilities	16,061,156	11,125,823
Commitments and contingencies (Note 11)	0	0
Stockholders' equity:
Preferred stock; $.001 par value; 5,000,000 shares authorized and 0 shares issued and outstanding	0	0
Common stock; $.001 par value; 130,000,000 shares authorized; 107,834,036 issued and 106,889,570 outstanding as of September 30, 2014 and 104,425,614 issued and 104,375,614 outstanding as of December 31, 2013	107,834	104,426
Additional paid-in capital	157,893,595	147,284,219
Treasury stock (944,466 shares as of September 30, 2014 and 50,000 shares as of December 31, 2013 at cost)	(5,337,077)	(25,000)
Accumulated deficit	(71,408,101)	(73,795,575)
Total stockholders' equity	81,256,251	73,568,070
Total liabilities and stockholders' equity	$ 97,317,407	$ 84,693,893

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income	$ 2,387,474	$ (2,684,915)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation	864,158	422,524
Amortization of intangible assets	695,368	789,809
Amortization of debt discount and deferred financing costs	0	1,328,439
Share-based compensation	8,160,678	4,155,005
Increase (decrease) in cash resulting from changes in:
Accounts receivable	(7,211,636)	(6,052,963)
Inventory	(857,914)	(1,510,278)
Prepaid expenses and other current assets	(630,882)	(913,644)
Other assets	0	70,000
Accounts payable	355,269	954,094
Accrued compensation	3,859,434	1,807,143
Accrued expenses	584,023	419,462
Accrued interest	0	(41,641)
Other liabilities	311,520	132,302
Net cash flows from operating activities	8,517,492	(1,124,663)
Cash flows from investing activities:
Purchases of equipment	(1,830,261)	(2,008,407)
Patent application costs	(477,095)	(526,566)
Net cash flows from investing activities	(2,307,356)	(2,534,973)
Cash flows from financing activities:
Proceeds from exercise of warrants	868,625	1,480,124
Proceeds from exercise of stock options	1,497,090	1,516,580
Stock repurchase	(5,312,077)	0
Principal payments of equipment leases	(88,522)	(29,797)
Net cash flows from financing activities	(3,034,884)	2,966,907
Net change in cash	3,175,252	(692,729)
Cash and cash equivalents, beginning of period	44,077,751	6,754,485
Cash and cash equivalents, end of period	$ 47,253,003	$ 6,061,756

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Equity (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014 plan		Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based compensation plans				3
Outstanding assumed options (in shares)	375,000			375,000
Additional shares authorized by Board of Directors (in shares)				4,000,000
Shares authorized (in shares)	26,500,000			26,500,000
Total unrecognized compensation expense	$ 16,675,914			$ 16,675,914
Number of shares [Roll forward]
Outstanding, beginning of period (in shares)				15,375,960
Granted (in shares)				2,948,969
Exercised (in shares)				(1,146,987)
Unvested options forfeited (in shares)				(249,670)
Vested options expired (in shares)				(84,332)
Outstanding, end of period (in shares)	16,843,940			16,843,940
Vested at end of period (in shares)	8,987,368			8,987,368
Exercisable options, vested and expected to vest (in shares)	16,515,621	[1]		16,515,621	[1]
Weighted-Average Exercise Price [Roll forward]
Outstanding, weighted average exercise price, beginning of period (in dollars per share)				$ 2.46
Granted, weighted average exercise price (in dollars per share)				$ 7.03
Exercised, weighted average exercise price (in dollars per share)				$ 1.31
Unvested options forfeited weighted-average exercise price (in dollars per share)				$ 4.04
Vested options expired weighted-average exercise price (in dollars per share)				$ 0.81
Outstanding, weighted average exercise price, end of period (in dollars per share)	$ 3.32			$ 3.32
Vested at end of period weighted average exercise price (in dollars per share)	$ 1.87			$ 1.87
Vested and expected to vest, weighted average exercise price (in dollars per share)	$ 3.27	[1]		$ 3.27	[1]
Stock options, additional disclosures [Abstract]
Vested at end of period weighted average remaining contractual term				6 years 8 months 12 days
Vested and expected to vest, weighted average remaining contractual term				7 years 6 months	[1]
Outstanding intrinsic value	64,630,326			64,630,326
Vested at end of period aggregate intrinsic value	47,252,742			47,252,742
Vested and expected to vest, aggregate intrinsic value	64,242,362	[1]		64,242,362	[1]
Exercised options, intrinsic value				6,517,614
Number of outstanding options (in shares)	16,843,940			16,843,940
Outstanding Options, weighted average remaining contractual term				7 years 6 months
Outstanding Options, weighted average exercise price (in dollars per share)	$ 3.32			$ 3.32
Number of exercisable options (in shares)	8,987,368			8,987,368
Exercisable Options, weighted average exercise price (in dollars per share)	$ 1.87			$ 1.87
Fair value options valuation assumptions [Abstract]
Expected volatility Minimum				63.60%		61.41%
Expected volatility Maximum				64.50%		64.56%
Expected life (in years)						6 years
Expected dividend yield				0.00%		0.00%
Risk-free interest rate Minimum				1.69%		0.85%
Risk-free interest rate Maximum				1.96%		1.88%
Share-based Compensation [Abstract]
Share-based compensation expense	3,021,962		1,667,766	8,160,678		4,155,005
Weighted-average grant date fair value for options granted during the period (in dollars per share)				$ 4.09
Warrants, term				5 years
Warrants
Warrants, Number of Warrants [Roll Forward]
Warrants outstanding, beginning of period (in shares)				1,284,816
Warrants exercised (in shares)				(1,079,583)
Warrants outstanding, end of period (in shares)	205,233			205,233
Warrants, Weighted-Average Exercise Price per Warrant [Roll Forward]
Warrants outstanding, beginning of period (in dollars per share)				0.90
Warrants exercised (in dollars per share)				0.80
Warrants outstanding, end of period (in dollars per share)	1.42			1.42
Cost of Products Sold
Share-based Compensation [Abstract]
Share-based compensation expense	70,424		75,287	242,689		198,119
Research and Development
Share-based Compensation [Abstract]
Share-based compensation expense	170,426		110,694	493,078		309,461
Selling, General and Administrative
Share-based Compensation [Abstract]
Share-based compensation expense	2,781,112		1,481,785	7,424,911		3,647,425
$0.50 - $0.76
Stock options, additional disclosures [Abstract]
Exercise Price Range, lower range limit (in dollars per share)				$ 0.50
Exercise Price Range, upper range limit (in dollars per share)				$ 0.76
Number of outstanding options (in shares)	720,364			720,364
Outstanding Options, weighted average remaining contractual term				4 years 8 months 12 days
Outstanding Options, weighted average exercise price (in dollars per share)	$ 0.72			$ 0.72
Number of exercisable options (in shares)	720,364			720,364
Exercisable Options, weighted average exercise price (in dollars per share)	$ 0.72			$ 0.72
$0.87 - $1.35
Stock options, additional disclosures [Abstract]
Exercise Price Range, lower range limit (in dollars per share)				$ 0.87
Exercise Price Range, upper range limit (in dollars per share)				$ 1.35
Number of outstanding options (in shares)	6,102,250			6,102,250
Outstanding Options, weighted average remaining contractual term				6 years 10 months 24 days
Outstanding Options, weighted average exercise price (in dollars per share)	$ 1.20			$ 1.20
Number of exercisable options (in shares)	4,911,058			4,911,058
Exercisable Options, weighted average exercise price (in dollars per share)	$ 1.19			$ 1.19
$1.40 - $2.29
Stock options, additional disclosures [Abstract]
Exercise Price Range, lower range limit (in dollars per share)				$ 1.40
Exercise Price Range, upper range limit (in dollars per share)				$ 2.29
Number of outstanding options (in shares)	1,482,701			1,482,701
Outstanding Options, weighted average remaining contractual term				5 years 3 months 18 days
Outstanding Options, weighted average exercise price (in dollars per share)	$ 1.64			$ 1.64
Number of exercisable options (in shares)	1,361,032			1,361,032
Exercisable Options, weighted average exercise price (in dollars per share)	$ 1.65			$ 1.65
$2.33 - $3.75
Stock options, additional disclosures [Abstract]
Exercise Price Range, lower range limit (in dollars per share)				$ 2.35
Exercise Price Range, upper range limit (in dollars per share)				$ 3.75
Number of outstanding options (in shares)	1,842,320			1,842,320
Outstanding Options, weighted average remaining contractual term				8 years
Outstanding Options, weighted average exercise price (in dollars per share)	$ 2.77			$ 2.77
Number of exercisable options (in shares)	889,298			889,298
Exercisable Options, weighted average exercise price (in dollars per share)	$ 2.69			$ 2.69
$3.95 - $5.99
Stock options, additional disclosures [Abstract]
Exercise Price Range, lower range limit (in dollars per share)				$ 3.95
Exercise Price Range, upper range limit (in dollars per share)				$ 5.99
Number of outstanding options (in shares)	3,443,402			3,443,402
Outstanding Options, weighted average remaining contractual term				8 years 7 months 6 days
Outstanding Options, weighted average exercise price (in dollars per share)	$ 5.15			$ 5.15
Number of exercisable options (in shares)	911,797			911,797
Exercisable Options, weighted average exercise price (in dollars per share)	$ 5.02			$ 5.02
$6.02 - $8.34
Stock options, additional disclosures [Abstract]
Exercise Price Range, lower range limit (in dollars per share)				$ 6.02
Exercise Price Range, upper range limit (in dollars per share)				$ 8.34
Number of outstanding options (in shares)	3,252,903			3,252,903
Outstanding Options, weighted average remaining contractual term				9 years
Outstanding Options, weighted average exercise price (in dollars per share)	$ 7.03			$ 7.03
Number of exercisable options (in shares)	193,819			193,819
Exercisable Options, weighted average exercise price (in dollars per share)	$ 6.37			$ 6.37
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expenses expected to be recognized over a weighted-average period				2 years
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expenses expected to be recognized over a weighted-average period				2 years 1 month 6 days
Total unrecognized stock-based compensation related to time-based, nonvested restricted stock	4,983,312			4,983,312
Number of Shares
Beginning Balance				576,550
Granted				592,864
Vested				(154,758)
Forfeited				(720)
Ending Balance	1,013,936			1,013,936
Weighted- Average Grant Date Fair Value
Beginning Balance (in dollars per share)				$ 5.53
Granted (in dollars per share)				$ 7.05
Vested (in dollars per share)				$ 5.72
Forfeited (in dollars per share)				$ 7.24
Beginning Balance (in dollars per share)	$ 6.40			$ 6.40
Minimum
Fair value options valuation assumptions [Abstract]
Expected life (in years)				5 years
Maximum
Fair value options valuation assumptions [Abstract]
Expected life (in years)				6 years
Consultant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock issued				5,611
Value of common stock issued				$ 39,000

[1] Includes forfeiture adjusted unvested shares.

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Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2014

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and equipment consist of the following as of September 30, 2014, and December 31, 2013:

	September 30, 2014			December 31, 2013
Leasehold improvements	$	2,491,731		$	2,319,928
Lab and clean room equipment	2,804,547			2,025,263
Furniture and office equipment	2,090,776			1,240,466
Construction in progress	831,183			802,319
	8,218,237			6,387,976
Less accumulated depreciation	(3,166,028		)	(2,301,870		)
	$	5,052,209		$	4,086,106

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Income taxes (Details)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]
Effective tax rate (as a percentage)	0.92%	3.75%

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Net Income (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss per Share

The following table sets forth the computation of basic and diluted net income (loss) per share:

	Three months ended  September 30,					Nine months ended September 30,
	2014		2013			2014		2013
Net income (loss)	$	3,699,705	$	(307,118	)	$	2,387,474	$	(2,684,915	)
Denominator for basic earnings per share - weighted average shares	105,756,945		96,914,856			105,331,344		95,429,988
Effect of dilutive securities: Stock options, restricted stock, and warrants outstanding(a)	7,057,713		—			7,193,672		—
Denominator for diluted earnings per share - weighted average shares adjusted for dilutive securities	112,814,658		96,914,856			112,525,016		95,429,988
Income (loss) per common share - basic	$	0.03	$	—		$	0.02	$	(0.03	)
Income (loss) per common share - diluted	$	0.03	$	—		$	0.02	$	(0.03	)

(a) Securities outstanding that are included in the computation above, utilizing the treasury stock method for the three and nine months ended September 30, 2014, are as follows:

	Three Months	Nine Months
	September 30, 2014
Outstanding Stock Options	6,651,994	6,752,310
Outstanding Warrants	194,002	275,593
Restricted Stock Awards	211,717	165,769
	7,057,713	7,193,672

Securities outstanding for the three and nine months ended September 30, 2013 were excluded from the computation of diluted earnings per share because they would have been anti - dilutive.

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Basis of Presentation

9 Months Ended

Sep. 30, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying 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.  Changes to GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of Accounting Standards Updates (“ASU’’) to the FASB’s Accounting Standards Codification (“ASC”).  In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the results of operations for the periods presented have been included.  Operating results for the nine months endedSeptember 30, 2014 and 2013, are not necessarily indicative of the results that may be expected for the fiscal year.  The balance sheet at December 31, 2013, has been 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. 

You should read these condensed consolidated financial statements together with the historical consolidated financial statements of the Company for the year ended December 31, 2013, included in the Company's Annual Report on Form 10-K for the year ended December 31, 2013, filed with the SEC on March 4, 2014. 

The Company operates in one business segment, Regenerative Biomaterials, which includes the design, manufacture, and marketing of products and tissue processing services for the Wound Care, Surgical, Sports Medicine, Ophthalmic and Dental market categories. The Company's biomaterial platform technologies include tissue technologies, AmnioFix® and EpiFix®, and device technology, CollaFix™.

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CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	5,000,000	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)	130,000,000	130,000,000
Common stock, shares issued (in shares)	107,834,036	104,425,614
Common stock, shares outstanding (in shares)	106,889,570	104,375,614
Treasury stock, shares (in shares)	944,466	50,000

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Contractual Commitments and Contingencies

9 Months Ended

Sep. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Contractual Commitments and Contingencies

Contractual Commitments and Contingencies

Contractual Commitments

In addition to the Capital Leases noted above in Note 5, the Company has entered into operating lease agreements for facility space and equipment. These leases expire over the next five years and generally contain renewal options. The Company anticipates that most of these leases will be renewed or replaced upon expiration. The Company also has commitments for meeting space and to various charitable organizations. The estimated annual lease payments, meeting space and charitable organization commitments are as follows:

12-month period ended September 30
2015	$	1,879,579
2016	1,863,354
2017	1,523,923
2018	1,463,054
2019	478,325
	$	7,208,235

Rent expense for the nine months ended September 30, 2014 and 2013, was approximately $847,000 and $762,000, respectively, and was $282,000 and $364,000 for the three months ended September 30, 2014 and 2013, respectively, and is allocated among cost of sales, research and development, and selling, general and administrative expenses.

Letters of Credit

As a condition of the leases for the Company's facilities, the Company is obligated under standby letters of credit in the amount of approximately $500,000. These obligations are reduced at various times over the lives of the leases.

FDA Untitled Letter and Related Litigation

Initially, MiMedx processed its tissue allografts in only one form, which was a sheet form. In 2011, MiMedx introduced a micronized form of its sheet allografts.

The FDA has specific regulations governing human cells, tissues and cellular and tissue-based products, or HCT/Ps. An HCT/P is a product containing or consisting of human cells or tissue intended for transplantation into a human patient. If an HCT/P meets the criteria for regulation solely under Section 361 of the Public Health Service Act (so-called “361 HCT/Ps”), no FDA review for safety and effectiveness under a drug, device, or biological product marketing application is required.

MiMedx believes that all of its tissue products qualify as 361 HCT/Ps. On August 28, 2013, however, the FDA issued an Untitled Letter alleging that the Company’s micronized allografts do not meet the criteria for regulation solely under Section 361 of the Public Health Service Act and that, as a result, MiMedx would need a biologics license to lawfully market the micronized products.

In December 2013, the FDA clarified the basis for its position regarding the micronized products. Specifically, the FDA explained its belief that “[c]ryo-milling cut, dehydrated amniotic/chorionic membrane results in a micron-sized powder and the loss of the tensile strength and elasticity that are essential characteristics of the original amniotic/chorionic tissue relating to its utility to function as a ‘physical membrane’ (i.e. covering, barrier).” The Company responded to the FDA that while it does not agree with the Agency’s position, it understands the Agency’s interest in further regulating this emerging technology. Accordingly, the Company proposed to the FDA that it would pursue the Investigational New Drug (“IND”) and Biologics License Application (“BLA”) process for certain micronized products, and, in parallel, also proposed to enter into negotiations with the FDA on a plan to transition the micronized products to licensed biological products and continue to market the micronized products under specific conditions.

On July 22, 2014, the Company filed its first IND application with the FDA. The application was allowed, paving the way for a Phase IIb clinical trial of its micronized product for a specified indication of use in anticipation of a BLA, which the Company expects to submit at a future date.  The clinical trial is expected to enroll approximately 150 patients in 10 - 20 clinical sites in the U.S. The Company anticipates initiating the trial in the first half of 2015.

The Company also requested a transition agreement to allow it to continue to market its current micronized products for certain specified uses while pursuing one or more BLAs. The Agency continues to assert that the current form of the Company’s micronized products are more than minimally manipulated and therefore are not eligible for marketing solely under Section 361 of the Public Health Service Act. The Company has asked the FDA to consider alternative formulations of the Company’s particulate products and is awaiting a response. The Company also has conducted tests and has engaged independent laboratories to conduct tests that confirm that tensile strength and elasticity are not diminished by the Company’s micronization process.

If the FDA does allow the Company to continue to market a particulate form of its sheet allografts, they may impose conditions, such as labeling restrictions and compliance with Current Good Manufacturing Practices (“cGMP”). It is also possible that the FDA will not allow the Company to market any form of a particulate product without a biologics license and could even require us to recall our current products. Revenues from micronized products make up about 15% of projected revenues in 2014.

Following the publication of the Untitled Letter from the FDA regarding the Company’s micronized products in September 2013, the trading price of the Company’s stock dropped sharply and several purported class action lawsuits were filed against the Company and certain of its executive officers asserting violations of the Securities Act of 1933 and the Securities Exchange Act of 1934 with respect to various statements and alleged omissions related to the Company’s belief that FDA approval was not required to market its products, including its micronized products. These cases have now all been removed to, and consolidated in, the United States District Court for the Northern District of Georgia. By order dated December 9, 2013, the Court approved the appointment of a lead plaintiff and a lead counsel. A Consolidated Amended Class Action Complaint, containing substantially the same causes of action and claims for relief as the initial complaints, was filed on January 27, 2014. On February 26, 2014, the Company filed a Motion to Dismiss on various grounds. The Court subsequently denied the Company’s Motion to Dismiss.  On September 8, 2014, the Company filed a Motion for Reconsideration, which is currently pending. The Company currently believes that the outcome of this litigation will not have a material adverse impact on the Company's financial position or results of operations.

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Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 15, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	MIMEDX GROUP, INC.
Entity Central Index Key	0001376339
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		106,938,400
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2014

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Subsequent Events (Notes)

9 Months Ended

Sep. 30, 2014

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

None

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Net sales	$ 33,517,762	$ 16,115,708	$ 78,650,148	$ 41,186,943
Cost of sales	3,348,005	2,113,438	9,065,248	6,216,940
Gross margin	30,169,757	14,002,270	69,584,900	34,970,003
Operating expenses:
Research and development expenses	2,014,306	1,287,361	5,204,153	3,458,585
Selling, general and administrative expenses	24,192,479	12,711,225	61,237,264	31,948,607
Amortization of intangible assets	232,079	259,575	695,368	789,809
Operating income (loss)	3,730,893	(255,891)	2,448,115	(1,226,998)
Other income (expense), net
Amortization of debt discount	0	0	0	(1,328,439)
Interest expense, net	(9,126)	(4,527)	(38,579)	(32,503)
Income (loss) before income tax provision	3,721,767	(260,418)	2,409,536	(2,587,940)
Income tax provision	(22,062)	(46,700)	(22,062)	(96,975)
Net income (loss)	$ 3,699,705	$ (307,118)	$ 2,387,474	$ (2,684,915)
Net income (loss) per common share - basic	$ 0.03	$ 0.00	$ 0.02	$ (0.03)
Net income (loss) per common share - diluted	$ 0.03	$ 0.00	$ 0.02	$ (0.03)
Weighted average shares outstanding - basic	105,756,945	96,914,856	105,331,344	95,429,988
Weighted average shares outstanding - diluted	112,814,658	96,914,856	112,525,016	95,429,988

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Intangible Assets and Royalty Agreement

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets and Royalty Agreement

Intangible Assets and Royalty Agreement

Intangible assets are summarized as follows:

	Weighted Average Amortization Lives	September 30, 2014 Cost			December 31, 2013 Cost
Licenses (a) (b)	10 years	$	1,009,000		$	1,009,000
Patents & Know How (b)	14 years	7,888,856			7,798,910
Customer & Supplier Relationships (b)	14 years	3,761,000			3,761,000
Tradenames & Trademarks (b)	indefinite	1,008,000			1,008,000
In Process Research & Development (b)	indefinite	25,000			25,000
Patents in Process (c)	indefinite	967,136			579,987
Total		14,658,992			14,181,897
Less Accumulated amortization		(3,698,692		)	(3,003,324		)
Net		$	10,960,300		$	11,178,573

(a) On January 29, 2007, the Company acquired a license from Shriners Hospitals for Children and University of South Florida Research Foundation, Inc. in the amount of $996,000.  Within 30 days after the receipt by the Company of approval by the FDA allowing the sale of the first licensed product, the Company is required to pay an additional $200,000 to the licensor.  Due to its contingent nature, this amount is not recorded as a liability. The Company will also be required to pay a royalty of 3% on all commercial sales revenue from the licensed products. The Company is also obligated to pay a $50,000 minimum annual royalty payment over the life of the license. As of September 30, 2014, this license had a remaining net book value of approximately $234,000.

(b) On January 5, 2011, the Company acquired Surgical Biologics, LLC.  As a result, the Company recorded intangible assets for Customer & Supplier Relationships of $3,761,000, Patents & Know-How of $7,690,000, Licenses of $13,000, Trade Names & Trademarks of $1,008,000 and In-Process Research & Development of $25,000. For the nine months ended September 30, 2014 an additional $89,946 of costs associated with patents granted during the period were capitalized and included in Patents & Know-How subject to amortization.

(c) Patents in Process consist of capitalized external legal and other registration costs in connection with internally developed tissue-based patents that are pending. Once issued, the costs associated with a given patent will be included in Patents & Know-How under intangible assets subject to amortization.

Amortization expense for the nine months ended September 30, 2014 and 2013, was approximately $695,000, and $790,000, respectively, and $232,000 and $260,000 for the three months ended September 30, 2014 and 2013, respectively.

Expected future amortization of intangible assets as of September 30, 2014, is as follows:

Year ending December 31,	Estimated Amortization Expense
2014 (a)	$	232,306
2015	929,226
2016	929,226
2017	839,593
2018	829,626
Thereafter	6,192,323
	$	9,952,300

(a) Estimated amortization expense for the year ending December 31, 2014, includes only amortization to be recorded after September 30, 2014.

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Property and Equipment

9 Months Ended

Sep. 30, 2014

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

Property and equipment consist of the following as of September 30, 2014, and December 31, 2013:

	September 30, 2014			December 31, 2013
Leasehold improvements	$	2,491,731		$	2,319,928
Lab and clean room equipment	2,804,547			2,025,263
Furniture and office equipment	2,090,776			1,240,466
Construction in progress	831,183			802,319
	8,218,237			6,387,976
Less accumulated depreciation	(3,166,028		)	(2,301,870		)
	$	5,052,209		$	4,086,106

Included in net property and equipment is approximately $427,000 of equipment covered under capital leases. The corresponding liability is included in other liabilities in the accompanying Condensed Consolidated Balance Sheets. Interest rates for these leases range from approximately 3% to 12% with maturity dates from September 2016 to January 2018.

Also included is approximately $1.0 million in leasehold improvements paid for by the landlord of the Company's new facility with a corresponding liability included in other liabilities which is amortized over the term of the lease.

Depreciation expense for the nine months ended September 30, 2014 and 2013, was approximately $864,000 and $423,000, respectively, and $313,000 and $185,000 for the three months ended September 30, 2014 and 2013, respectively.

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Intangible Assets and Royalty Agreement (Tables)

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets activity summary

Intangible assets are summarized as follows:

	Weighted Average Amortization Lives	September 30, 2014 Cost			December 31, 2013 Cost
Licenses (a) (b)	10 years	$	1,009,000		$	1,009,000
Patents & Know How (b)	14 years	7,888,856			7,798,910
Customer & Supplier Relationships (b)	14 years	3,761,000			3,761,000
Tradenames & Trademarks (b)	indefinite	1,008,000			1,008,000
In Process Research & Development (b)	indefinite	25,000			25,000
Patents in Process (c)	indefinite	967,136			579,987
Total		14,658,992			14,181,897
Less Accumulated amortization		(3,698,692		)	(3,003,324		)
Net		$	10,960,300		$	11,178,573

(a) On January 29, 2007, the Company acquired a license from Shriners Hospitals for Children and University of South Florida Research Foundation, Inc. in the amount of $996,000.  Within 30 days after the receipt by the Company of approval by the FDA allowing the sale of the first licensed product, the Company is required to pay an additional $200,000 to the licensor.  Due to its contingent nature, this amount is not recorded as a liability. The Company will also be required to pay a royalty of 3% on all commercial sales revenue from the licensed products. The Company is also obligated to pay a $50,000 minimum annual royalty payment over the life of the license. As of September 30, 2014, this license had a remaining net book value of approximately $234,000.

(b) On January 5, 2011, the Company acquired Surgical Biologics, LLC.  As a result, the Company recorded intangible assets for Customer & Supplier Relationships of $3,761,000, Patents & Know-How of $7,690,000, Licenses of $13,000, Trade Names & Trademarks of $1,008,000 and In-Process Research & Development of $25,000. For the nine months ended September 30, 2014 an additional $89,946 of costs associated with patents granted during the period were capitalized and included in Patents & Know-How subject to amortization.

(c) Patents in Process consist of capitalized external legal and other registration costs in connection with internally developed tissue-based patents that are pending. Once issued, the costs associated with a given patent will be included in Patents & Know-How under intangible assets subject to amortization.

Estimated future amortization expense for intangible assets

Expected future amortization of intangible assets as of September 30, 2014, is as follows:

Year ending December 31,	Estimated Amortization Expense
2014 (a)	$	232,306
2015	929,226
2016	929,226
2017	839,593
2018	829,626
Thereafter	6,192,323
	$	9,952,300

(a) Estimated amortization expense for the year ending December 31, 2014, includes only amortization to be recorded after September 30, 2014.

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Schedule II - Valuation and Qualifying Accounts

9 Months Ended

Sep. 30, 2014

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

Schedule II Valuation and Qualifying Accounts

MIMEDX GROUP, INC. AND SUBSIDIARIES SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS
Three and Nine Months Ended September 30, 2014 and 2013
	Balance at Beginning of Period		Additions charged to Expense or Revenue		Deductions and write-offs			Balance at End of Period
For the Quarter ended September 30, 2014
Allowance for doubtful accounts	$	678,000	$	523,000	$	—		$	1,201,000
Allowance for product returns	270,000		806,000		(399,000		)	677,000
Allowance for obsolescence	352,000		76,000		(3,000		)	425,000
For the Quarter ended September 30, 2013
Allowance for doubtful accounts	44,000		73,000		(2,000		)	115,000
Allowance for product returns	162,000		178,000		(153,000		)	187,000
Allowance for obsolescence	242,000		131,000		—			373,000
For the nine months ended September 30, 2014
Allowance for doubtful accounts	407,000		808,000		(14,000		)	1,201,000
Allowance for product returns	215,000		1,419,000		(957,000		)	677,000
Allowance for obsolescence	322,000		140,000		(37,000		)	425,000
For the nine months ended September 30, 2013
Allowance for doubtful accounts	49,000		99,000		(33,000		)	115,000
Allowance for product returns	88,000		648,000		(549,000		)	187,000
Allowance for obsolescence	159,000		214,000		—			373,000

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Income taxes

9 Months Ended

Sep. 30, 2014

Income Tax Disclosure [Abstract]

Income taxes

Income taxes

The effective tax rates for continuing operations of 0.92% and (3.75%), respectively, for the nine months ended September 30, 2014 and September 30, 2013, were determined using an estimated annual effective tax rate and after considering any discrete items for such periods. Due to a valuation allowance against the Company's U.S. deferred tax assets, the effective tax rate for the nine months ended September 30, 2014, does not include the benefit of the current period U.S. tax loss. A valuation allowance is recorded to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that a portion or none of the deferred tax assets will be realized.  After consideration of all the evidence, including reversal of deferred tax liabilities, future taxable income and other factors, management has determined that a full valuation allowance is necessary as of September 30, 2014. As a result, income tax expense for the nine months ended September 30, 2014, is primarily due to income tax expense in certain state jurisdictions.

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Net Income (Loss) Per Share

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Net Income (loss) Per Share

Net Income (Loss) Per Share

Basic net income (loss) per common share is computed using the weighted-average number of common shares outstanding during the period.  Diluted net loss per common share is computed using the weighted-average number of common and dilutive common equivalent shares from stock options, restricted stock, and warrants (see Note 8) using the treasury stock method.  For the three and nine months ended September 30, 2013, diluted net loss per share is the same as basic net loss per share, as the inclusion of equivalent shares from outstanding common stock options, restricted stock, and warrants would be anti-dilutive.

The following table sets forth the computation of basic and diluted net income (loss) per share:

	Three months ended  September 30,					Nine months ended September 30,
	2014		2013			2014		2013
Net income (loss)	$	3,699,705	$	(307,118	)	$	2,387,474	$	(2,684,915	)
Denominator for basic earnings per share - weighted average shares	105,756,945		96,914,856			105,331,344		95,429,988
Effect of dilutive securities: Stock options, restricted stock, and warrants outstanding(a)	7,057,713		—			7,193,672		—
Denominator for diluted earnings per share - weighted average shares adjusted for dilutive securities	112,814,658		96,914,856			112,525,016		95,429,988
Income (loss) per common share - basic	$	0.03	$	—		$	0.02	$	(0.03	)
Income (loss) per common share - diluted	$	0.03	$	—		$	0.02	$	(0.03	)

(a) Securities outstanding that are included in the computation above, utilizing the treasury stock method for the three and nine months ended September 30, 2014, are as follows:

	Three Months	Nine Months
	September 30, 2014
Outstanding Stock Options	6,651,994	6,752,310
Outstanding Warrants	194,002	275,593
Restricted Stock Awards	211,717	165,769
	7,057,713	7,193,672

Securities outstanding for the three and nine months ended September 30, 2013 were excluded from the computation of diluted earnings per share because they would have been anti - dilutive.

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Equity

9 Months Ended

Sep. 30, 2014

Equity [Abstract]

Equity

Equity

Stock Incentive Plans

The Company has three share-based compensation plans: the MiMedx Group, Inc. Assumed 2006 Stock Incentive Plan (the “2006 Plan”), the MiMedx Inc. 2007 Assumed Stock Plan (the “Assumed 2007 Plan”) and the MiMedx Group Inc. Amended and Restated Assumed 2005 Stock Plan (the “Assumed 2005 Plan”) which provide for the granting of qualified incentive and non-qualified stock options, stock appreciation awards and restricted stock awards to employees, directors, consultants and advisors. The awards are subject to a vesting schedule as set forth in each individual agreement. The Company intends to use only the 2006 Plan to make future grants. The number of assumed options under the Assumed 2005 Plan and Assumed 2007 Plan outstanding at September 30, 2014, totaled 375,000.  On July 28, 2014, the Company's shareholders approved 4,000,000 additional shares to be made available under the 2006 Plan, bringing the maximum number of shares of common stock that can be issued under the 2006 Plan to 26,500,000 at September 30, 2014.

Activity with respect to the stock options is summarized as follows:

	Number  of Shares		Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding at January 1, 2014	15,375,960		$	2.46
Granted	2,948,969		7.03
Exercised	(1,146,987	)	1.31
Unvested options forfeited	(249,670	)	4.04
Vested options expired	(84,332	)	0.81
Outstanding at September 30, 2014	16,843,940		3.32		7.5	$	64,630,326
Vested at September 30, 2014	8,987,368		1.87		6.7	47,252,742
Vested or expected to vest at September 30, 2014 (a)	16,515,621		$	3.27	7.5	$	64,242,362

(a) Includes forfeiture adjusted unvested shares.

The intrinsic value of the options exercised during the nine months endedSeptember 30, 2014, was approximately $6,517,614. 

Following is a summary of stock options outstanding and exercisable at September 30, 2014:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number outstanding	Weighted-Average Remaining Contractual Term (in years)	Weighted- Average Exercise Price		Number Exercisable	Weighted- Average Exercise Price
$0.50 - $0.76	720,364	4.7	$	0.72	720,364	$	0.72
$0.87 - $1.35	6,102,250	6.9	1.20		4,911,058	1.19
$1.40 - $2.29	1,482,701	5.3	1.64		1,361,032	1.65
$2.33 - $3.75	1,842,320	8.0	2.77		889,298	2.69
$3.95 - $5.99	3,443,402	8.6	5.15		911,797	5.02
$6.02 - $8.34	3,252,903	9.0	7.03		193,819	6.37
	16,843,940	7.5	$	3.32	8,987,368	$	1.87

Total unrecognized compensation expense related to granted stock options at September 30, 2014, was approximately $16,675,914 and is expected to be recognized over a weighted-average period of 2.0 years. 

The fair value of options granted by the Company is estimated on the date of grant using the Black-Scholes-Merton option-pricing model that uses assumptions for expected volatility, expected dividends, expected term, and the risk-free interest rate.  Expected volatilities are based on historical volatility of peer companies and other factors estimated over the expected term of the options.  The term of employee options granted is derived using the “simplified method,” which computes expected term as the average of the sum of the vesting term plus the contract term.  The term for non-employee options is generally based upon the contractual term of the option.  The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for the period of the expected term or contractual term as described.

The assumptions used in calculating the fair value of options using the Black-Scholes-Merton option-pricing model are set forth in the following table:

	Nine Months Ended September 30,
	2014	2013
Expected volatility	63.6- 64.5%	61.41 - 64.56%
Expected life (in years)	5.0 - 6.0	6.0
Expected dividend yield	—	—
Risk-free interest rate	1.69% - 1.96%	0.85% -1.88%

The weighted-average grant date fair value for options granted during the nine months endedSeptember 30, 2014, was approximately $4.09.

Restricted Stock Awards                                                            

Activity with respect to restricted stock awards is summarized as follows: 

	Number of Shares		Weighted-Average Grant Date Fair Value
Unvested at December 31, 2013	576,550		$5.53
Granted	592,864		7.05
Vested	(154,758	)	5.72
Forfeited	(720	)	7.24
Unvested at September 30, 2014	1,013,936		$6.40

As of September 30, 2014, there was approximately $4,983,312 of total unrecognized stock-based compensation related to time-based, nonvested restricted stock.  That expense is expected to be recognized on a straight-line basis over a weighted-average period of 2.1 years. All shares noted above as unvested are considered issued and outstanding at September 30, 2014.

Additionally, during the nine months ended September 30, 2014, 5,611 shares of common stock valued at approximately $39,000 were issued under the 2006 Plan to a consultant in return for services performed.

For the three and nine months ended September 30, 2014 and 2013, the Company recognized stock-based compensation as follows: 

	Three Months Ended September 30,				Nine Months Ended September 30,
	2014		2013		2014		2013
Cost of sales	$	70,424	$	75,287	$	242,689	$	198,119
Research and development	170,426		110,694		493,078		309,461
Selling, general and administrative	2,781,112		1,481,785		7,424,911		3,647,425
	$	3,021,962	$	1,667,766	$	8,160,678	$	4,155,005

Warrants

The Company grants common stock warrants in connection with equity share purchases by investors as an additional incentive for providing long term equity capital to the Company and as additional compensation to consultants and advisors.  The warrants are granted at negotiated prices in connection with the equity share purchases and at the market price of the common stock in other instances.  The warrants have been issued for terms of five years.

Following is a summary of the warrant activity for the nine months endedSeptember 30, 2014:

	Number  of Warrants		Weighted-Average Exercise Price per warrant
Warrants outstanding at January 1, 2014	1,284,816		$	0.90
Warrants exercised	(1,079,583	)	0.80
Warrants outstanding at September 30, 2014	205,233		$	1.42

Warrants may be exercised in whole or in part by notice given by the holder accompanied by payment in cash of an amount equal to the warrant exercise price multiplied by the number of warrant shares being purchased.

These warrants are not mandatorily redeemable, and do not obligate the Company to repurchase its equity shares by transferring assets or issuing a variable number of shares. 

The warrants require that the Company deliver shares as part of a physical settlement and do not provide for a net-cash settlement. 

All of the Company's warrants are classified as equity as of September 30, 2014, and December 31, 2013 and expire at various times through the end of 2016.

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Supplemental disclosure of cash flow and non-cash investing and financing activities

9 Months Ended

Sep. 30, 2014

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:

	Nine Months Ended September 30,
	2014		2013
Cash paid for interest	$	38,347	$	22,971
Prepaid income taxes	80,953		96,967
Purchases of equipment financed through capital leases	—		107,259
Stock issuance of 13,158 shares in exchange for services performed	86,391		—
Stock issuance of 5,272,004 shares in exchange for convertible debt	—		5,272,004
Tenant improvement incentive	—		996,866

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Net Income (Loss) Per Share (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Computation of basic and diluted net loss per share [Abstract]
Net income	$ 3,699,705		$ (307,118)		$ 2,387,474		$ (2,684,915)
Denominator for basic earnings per share - weighted average shares	105,756,945		96,914,856		105,331,344		95,429,988
Effect of dilutive securities: Stock options and warrants outstanding and convertible debt (in shares)	7,057,713	[1]	0	[1]	7,193,672	[1]	0	[1]
Denominator for diluted earnings per share - weighted average shares adjusted for dilutive securities	112,814,658		96,914,856		112,525,016		95,429,988
Income (loss) per common share - basic	$ 0.03		$ 0.00		$ 0.02		$ (0.03)
Income (loss) per common share - diluted	$ 0.03		$ 0.00		$ 0.02		$ (0.03)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	7,057,713				7,193,672
Outstanding Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	6,651,994				6,752,310
Outstanding Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	194,002				275,593
Restricted Stock Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	211,717				165,769

[1] Securities outstanding that are included in the computation above, utilizing the treasury stock method for the three and nine months ended September 30, 2014, are as follows: Three Months Nine Months September 30, 2014Outstanding Stock Options6,651,994 6,752,310Outstanding Warrants194,002 275,593Restricted Stock Awards211,717 165,769 7,057,713 7,193,672Securities outstanding for the three and nine months ended September 30, 2013 were excluded from the computation of diluted earnings per share because they would have been anti - dilutive.

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Inventories (Tables)

9 Months Ended

Sep. 30, 2014

Inventory Disclosure [Abstract]

Inventory

Inventories consisted of the following items as of September 30, 2014, and December 31, 2013:

	September 30, 2014			December 31, 2013
Raw materials	$	270,191		$	202,414
Work in process	3,228,525			2,951,704
Finished goods	1,664,729			1,048,886
	5,163,445			4,203,004
Reserve for obsolescence	(424,755		)	(322,228		)
Inventory, net	$	4,738,690		$	3,880,776

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Supplemental disclosure of cash flow and non-cash investing and financing activities (Tables)

9 Months Ended

Sep. 30, 2014

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:

	Nine Months Ended September 30,
	2014		2013
Cash paid for interest	$	38,347	$	22,971
Prepaid income taxes	80,953		96,967
Purchases of equipment financed through capital leases	—		107,259
Stock issuance of 13,158 shares in exchange for services performed	86,391		—
Stock issuance of 5,272,004 shares in exchange for convertible debt	—		5,272,004
Tenant improvement incentive	—		996,866

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CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (unaudited) (USD $)	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Deficit
Balance at Dec. 31, 2013	$ 73,568,070	$ 104,426	$ 147,284,219	$ (25,000)	$ (73,795,575)
Balance (in shares) at Dec. 31, 2013		104,425,614		50,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	8,160,678		8,160,678
Exercise of stock options	1,497,090	1,147	1,495,943
Exercise of stock options (in shares)	1,146,987	1,146,987
Exercise of warrants	868,625	1,080	867,545
Exercise of warrants (in shares)		1,079,583
Issuance of restricted stock	0	1,168	(1,168)
Issuance of restricted stock (in shares)		1,168,694
Shares issued for services performed	86,391	13	86,378
Shares issued for services performed (in shares)	13,158	13,158
Stock repurchase	(5,312,077)			(5,312,077)
Stock repurchase (in shares)				894,466
Net income	2,387,474				2,387,474
Balance at Sep. 30, 2014	$ 81,256,251	$ 107,834	$ 157,893,595	$ (5,337,077)	$ (71,408,101)
Balance (in shares) at Sep. 30, 2014		107,834,036		944,466

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Inventories

9 Months Ended

Sep. 30, 2014

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consisted of the following items as of September 30, 2014, and December 31, 2013:

	September 30, 2014			December 31, 2013
Raw materials	$	270,191		$	202,414
Work in process	3,228,525			2,951,704
Finished goods	1,664,729			1,048,886
	5,163,445			4,203,004
Reserve for obsolescence	(424,755		)	(322,228		)
Inventory, net	$	4,738,690		$	3,880,776

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Contractual Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Estimated Annual Lease, Royalty and Employment Agreement Expenses

In addition to the Capital Leases noted above in Note 5, the Company has entered into operating lease agreements for facility space and equipment. These leases expire over the next five years and generally contain renewal options. The Company anticipates that most of these leases will be renewed or replaced upon expiration. The Company also has commitments for meeting space and to various charitable organizations. The estimated annual lease payments, meeting space and charitable organization commitments are as follows:

12-month period ended September 30
2015	$	1,879,579
2016	1,863,354
2017	1,523,923
2018	1,463,054
2019	478,325
	$	7,208,235

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Contractual Commitments and Contingencies (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 patient	Sep. 30, 2013
Loss Contingencies [Line Items]
Lease expiration period			5 years
Rent expense	$ 282,000	$ 364,000	$ 847,000	$ 762,000
Number of patients			150
Estimated annual lease, royalty, and employment agreement expenses [Abstract]
2015	1,879,579		1,879,579
2016	1,863,354		1,863,354
2017	1,523,923		1,523,923
2018	1,463,054		1,463,054
2019	478,325		478,325
Total Contractual commitments	7,208,235		7,208,235
Sales Revenue, Net | Product Concentration Risk
Loss Contingencies [Line Items]
Percentage of revenue			15.00%
Standby Letters of Credit
Loss Contingencies [Line Items]
Standby letters of credit	$ 500,000		$ 500,000
Minimum
Loss Contingencies [Line Items]
Number of clinical sites			10
Maximum
Loss Contingencies [Line Items]
Number of clinical sites			20

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Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2014

Accounting Policies [Abstract]

Use of estimates

Use of Estimates

The preparation of financial statements in conformity with 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 financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. 

Accounts 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.

The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses in the Company’s existing receivables. The Company determines the allowance based on factors such as historical collection experience, customers' current creditworthiness, customer concentrations, age of accounts receivable balance and general economic conditions that may affect the customers' ability to pay. 

Inventories

Inventories

Inventory is valued at standard cost, which approximates actual cost computed on a first-in, first-out basis, not in excess of market value. The Company assesses the valuation of its inventory on a periodic basis and makes adjustments to the value for estimated excess and obsolete inventory based on estimates about future demand. The excess balance determined by this analysis becomes the basis for the Company's excess inventory charge. The Company's excess inventory review process includes analysis of sales forecasts, managing product rollovers and working with operations to maximize recovery of excess inventory.

Revenue Recognition

Revenue Recognition

The Company sells its products through a combination of a direct sales force and independent stocking distributors and representatives in the U.S. and independent distributors in international markets. The Company recognizes revenue when title to the goods transfers to customers, provided there are no material remaining performance obligations required of the Company or any matters of customer acceptance. In cases where the Company utilizes distributors or ships product directly to the end user, it recognizes revenue upon shipment provided all revenue recognition criteria have been met. A portion of the Company's revenue is generated from inventory maintained at hospitals or with the field representatives. For these products, revenue is recognized at the time the product has been used or implanted. The Company records estimated sales returns, discounts and allowances as a reduction of net sales in the same period revenue is recognized.  

Patent Costs

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 and are included in Intangible Assets in the Condensed Consolidated Balance Sheets. The Company capitalized approximately $477,000 of patent costs during the first nine months of 2014. The Company capitalized approximately $527,000 of patent costs during the first nine months of 2013.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

The Company considers the applicability and impact of all ASUs issued effective and not yet effective. In May 2014, the Financial Accounting Standards Board issued ASU 2014-09, “Revenue Recognition - Revenue from Contracts with Customers” (ASU 2014-09) that requires companies to recognize revenue when a customer obtains control rather than when companies have transferred substantially all risks and rewards of a good or service. This update is effective for annual reporting periods beginning on or after December 15, 2016 and interim periods therein and requires expanded disclosures. We are currently assessing the impact the adoption of ASU 2014-09 will have on our condensed consolidated financial statements. All other ASUs issued effective and not yet effective for the nine months endedSeptember 30, 2014, 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 or results of operations