2.	Summary of Significant Accounting Policies

Use of Estimates

The preparation of Consolidated Financial Statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions affecting 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 these estimates. Our most significant estimates and critical accounting policies involve recognizing revenue, estimating useful lives of long-lived assets, valuing warrants, determining the assumptions used in measuring share-based compensation expense and valuing allowances for doubtful accounts, and inventories.

Cash and Cash Equivalents

We consider all highly liquid investments with maturities of three months or less at the time of purchase to be cash equivalents. There is no investment recorded as of December 31, 2015. Investments with original maturities of three months or less that were included with and classified as cash and cash equivalents totaled $14,338,000 and $8,144,000 as of December 31, 2015 and 2014, respectively. We maintain our cash at insured financial institutions.

Restricted Cash and Cash Equivalents

Restricted cash consists of cash and cash equivalents held in a letter of credit account pursuant to a lease agreement entered into on April 2, 2010 (amended November 4, 2011) for leasing of property at 3020 and 3030 Callan Road, San Diego, California. The lease agreement required us to execute a letter of credit for $350,000 naming the landlord as a beneficiary. It is required by the landlord that we maintain $350,000 as restricted cash for the duration of the lease, which expires October 31, 2017.

Accounts Receivable

Accounts receivable are recorded at the invoiced amount and do not bear interest. The Company periodically assesses the collectability of accounts receivable considering factors such as specific evaluation of collectability, historical collection experience, the age of accounts receivable and other currently available evidence of the collectability, and records an allowance for doubtful accounts for the estimated uncollectible amount. Account balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote.

Inventories

Inventories include the cost of material, labor, and overhead, and are stated at the lower of cost, determined on the first-in, first-out (FIFO) method, or market. We periodically evaluate our on-hand stock and make appropriate provisions for any stock deemed excess or obsolete. Manufacturing costs resulting from lower than “normal” production levels are expensed as incurred.

Property and Equipment

Property and equipment are stated at cost, net of accumulated depreciation. Depreciation expense, which includes the amortization of capitalized leasehold improvements, is provided for on a straight-line basis over the estimated useful lives of the assets, or the life of the lease, whichever is shorter, and range from three to five years. When assets are sold or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts and the resulting gain or loss, if any, is included in operations. Maintenance and repairs are charged to operations as incurred.

Impairment

We assess certain of our long-lived assets, such as property and equipment and intangible assets other than goodwill, for potential impairment when there is a change in circumstances that indicates carrying values of assets may not be recoverable. Such long-lived assets are deemed to be impaired when the undiscounted cash flows expected to be generated by the asset (or asset group) are less than the asset’s carrying amount. Any required impairment loss would be measured as the amount by which the asset’s carrying value exceeds its fair value, and would be recorded as a reduction in the carrying value of the related asset and a charge to operating expense. We recognized no impairment losses during any of the periods presented in these financial statements.

Goodwill and Intangibles

Goodwill is reviewed for impairment annually or more frequently when events or changes in circumstances indicate that fair value of the reporting unit has been reduced to less than its carrying value. We perform our impairment test annually during the fourth quarter. First the Company assesses qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. If, after assessing qualitative factors, the Company determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. If deemed necessary, a two-step test is used to identify the potential impairment and to measure the amount of goodwill impairment, if any. The first step is to compare the fair value of the reporting unit with its carrying amount, including goodwill. If the fair value of the reporting unit exceeds its carrying amount, goodwill is considered not impaired; otherwise, there is an indication that goodwill may be impaired and the amount of the loss, if any, is measured by performing step two. Under step two, the impairment loss, if any, is measured by comparing the implied fair value of the reporting unit goodwill with the carrying amount of goodwill. We completed this assessment as of November 30, 2015, and concluded that no impairment existed.

Separable intangible assets that have finite useful lives continue to be amortized over their respective useful lives.

As part of the May 2013 acquisition of the Joint Venture (see Note 4), we acquired intangible assets which consisted primarily of contractual license rights that had previously enabled the Joint Venture to conduct development and manufacturing activities pertaining to certain aspects of Cytori’s Celution ® technology. The useful life of the identifiable intangible assets was estimated based on the assumed future economic benefit expected to be received from the assets. The technology was valued at $9,394,000 and is being amortized over a useful life of seven years, commensurate with the expected cash flows. We have amortized $397,000 and $166,000 as of December 31, 2015 and 2014, respectively. The estimated aggregate amortization expense will be $782,000 for 2016, $1,539,000 for 2017, $2,415,000 for 2018 and $3,864,000 thereafter.

The changes in the carrying amounts of other indefinite and finite-life intangible assets and goodwill for the years ended December 31, 2015 and 2014 are as follows:

	December 31, 2015
Other intangibles, net:
Beginning balance	$	9,415,000
Increase		13,000
Amortization		(397,000	)
Ending balance		9,031,000

Goodwill, net:
Beginning balance		3,922,000
Increase (decrease)		—
Ending balance		3,922,000

Total goodwill and other intangibles, net	$	12,953,000

	December 31, 2014
Other intangibles, net:
Beginning balance	$	9,345,000
Acquisition of JV Intangible		255,000
Amortization		(185,000	)
Ending balance		9,415,000

Goodwill, net:
Beginning balance		3,922,000
Increase (decrease)		—
Ending balance		3,922,000

Total goodwill and other intangibles, net	$	13,337,000

Warrant Liability

In connection with the October 2014 Securities Purchase Agreement, the Company issued common stock purchase warrants (the “October Warrants”) to certain institutional investors with certain exercise price reset features. Each warrant has an initial exercise price of $0.5771 per share, is exercisable six months and one day after the date of issuance and expires five years from the date on which it is initially exercisable. Pursuant to the second closing of the May 2015 Securities Purchase Agreement, the exercise price of these warrants was reset to $0.3263. The initial fair value of the liability associated with these warrants was $10.0 million and it decreased to $9.8 million as of December 31, 2014. The fair value of the October Warrants was $3.3 million as of December 17, 2015 on or before December 31, 2015 when these warrants were cashless exercised by all holders.

In May 2015, the Company entered into a Securities Purchase Agreement with certain institutional investors pursuant to which the Company agreed to sell up to $25 million of units, with each unit consisting of one share of its common stock and one warrant to purchase one share of its common stock, in a registered direct offering. The May 2015 Securities Purchase Agreement contemplated two closings, the first of which occurred on May 8, 2015, the second of which occurred upon satisfaction of certain conditions precedent, including, but not limited to, receipt of required stockholder approval, on August 27, 2015. Each warrant issued at the initial closing (the “May 2015 Warrants”) has an initial exercise price of $1.02 per share, is exercisable six months and one day after the date of issuance and expires five years from the date on which it is initially exercisable. Each warrant issued at the second closing (the “August 2015 Warrants”) has an initial exercise price of $0.401 per share, and expires five years from the date of issuance. The initial fair value of the liability associated with the May 2015 Warrants was $14.3 million and it decreased to $5.0 million as of December 17, 2015, on or before such time these warrants were cashless exercised by all holders. The initial fair value of the liability associated with the August 2015 Warrants was $1.6 million, and it decreased to $1.5 million as of December 17, 2015, on or before such time these warrants were cashless exercised by all holders.

On December 17, 2015, the “Company” and the holders of October 2014 warrants agreed to amend the October 2014 Warrants pursuant to an Amendment to Common Stock Purchase Warrant (the “2014 Amendment”). Also on December 17, 2015, the Company and the holders of the May 2015 Warrants and the August 2015 Warrants (collectively the “2015 Warrants”) agreed to amend the 2015 Warrants pursuant to an Amendment to Series A-1 Warrant to Purchase Common Stock and Amendment to Series A-2 Warrant to Purchase Common Stock, respectively (the “2015 Amendment” and, together with the 2014 Amendment, the “Warrant Amendments”). The Warrant Amendments provide that the holders may exercise their warrants on a “cashless exercise” basis in whole on or prior to December 31, 2015, whereby each exercising holder of the amended 2015 Warrants would receive 0.75 shares for each warrants share exercised and each exercising holder of the amended 2014 Warrants would 0.69 shares for each warrant share exercised. In addition, the Warrant Amendments removed certain provisions which provided that the exercise price of the Warrants would be reset in the event of certain equity issuances by the Company for a price below the exercise price of the Warrants as of the time of such issuance. All 2014 Warrants and all 2015 Warrants were cashless exercised on or before December 31, 2015.

The warrants were not traded in an active securities market and, as such, the estimated the fair value as of December 31, 2015 and December 31, 2014 was determined by using an option pricing model (Monte Carlo) with the following assumptions:

	As of December 31, 2014
October 2014 Warrants
Expected term	5.3 years
Common stock market price	$	0.49
Risk-free interest rate		1.65	%
Expected volatility		90.00	%
Resulting fair value (per warrant)	$	0.38

Expected volatility was determined based on both historical and implied volatility. Historical volatility was computed using daily pricing observations for recent periods that correspond to the expected term of the warrants while implied volatility was computed using publicly traded options of Cytori as well as Cytori’s peer companies. The expected life was based on the remaining contractual term of the warrants. The risk-free interest rate is the U.S. Treasury bond rate as of the valuation date. The fair value of these warrants also incorporated our assumptions about future equity issuances and their impact to the down-round protection feature.

Fluctuations in the fair value of the warrants were impacted by unobservable inputs, most significantly the assumption with regards to future equity issuances and its impact to the down-round protection feature. Significant increases (decreases) in this input in isolation would result in a significantly higher (lower) fair value measurement. The main drivers for the change in the fair value of warrants throughout 2015 were the issuance of new warrants, exercise of issued warrants and changes in our stock price.

Refer to Note 6 of the Notes to Consolidated Financial Statements for a discussion of the change in our Level 3 warrant liability value.

Revenue Recognition

Product Sales

We recognize revenue from product sales when the following fundamental criteria are met: (i) persuasive evidence of an arrangement exists, (ii) delivery has occurred, (iii) the price to the customer is fixed or determinable and (iv) collection of the resulting accounts receivable is reasonably assured. For customers that have not developed a sufficient payment history with us or for whom a letter of credit is not in place at the time of the transaction, we defer revenues until collectability is reasonably assured.

For all sales, we use a binding purchase order or a signed agreement as evidence of an arrangement. If the other revenue recognition criteria are met, revenue for these product sales is recognized upon delivery to the customer as all risks and rewards of ownership have been substantively transferred to the customer at that point. For sales to customers who arrange for and manage the shipping process, we recognize revenue upon shipment from our facilities. Shipping and handling costs that are billed to our customers are classified as revenue. The customer’s obligation to pay and the payment terms are set at the time of delivery and are not dependent on the subsequent use or resale of our products. For sales where all revenue recognition criteria are not met, revenue is deferred and related inventory remains on our books.

For sales that include multiple deliverables, such as sales of our StemSource® Cell Bank (cell bank), we account for products or services (deliverables) separately rather than as a combined unit. Stem cell banks typically consist of a complex array of equipment, proprietary knowledge, license rights, and services, including one or more StemSource® devices, a cryogenic freezer, measuring and monitoring equipment, and a database patient tracking system. In addition, we typically provide consulting, installation, and training services. Web hosting, technical support and maintenance services are generally provided for a period of up to one year subsequent to the date of sale. FASB authoritative guidance requires an evaluation of these deliverables to determine the appropriate “units of accounting” for purposes of revenue recognition. Each cell bank is customized to provide the best solution for the customer. Depending on customers’ needs, all or combination of the following units of accounting will apply to cell bank transactions:

initial consulting services;

license rights and standard operating procedures;

equipment and supplies;

installation services;

training services;

database hosting services;

technical support services; and

maintenance services.

FASB authoritative guidance establishes a selling price hierarchy for determining the selling price of a deliverable, which is based on: (a) vendor-specific objective evidence (“VSOE”); (b) third-party evidence (“TPE”); or (c) management estimates. This guidance requires arrangement consideration to be allocated at the inception of the arrangement to all deliverables using the relative selling price method. For our cell bank sales, we establish relative selling prices for all deliverables based on vendor-specific quotes for comparable services when available. In the absence of VSOE, we use competitors’ products or services considered largely interchangeable with our own or management’s best estimate. Revenue allocated to each unit of accounting is calculated and recognized based on the relative selling price of each deliverable. Future services such as web hosting and ongoing maintenance are deferred and recognized into income as the services are provided, generally over one year following the installation of the equipment.

Concentration of Significant Customers & Geographical Sales

For the year ended December 31, 2015, our sales were concentrated with respect to one distributor and four direct customers, which comprised 63% of our product revenue recognized. Two direct customers accounted for 73% of total outstanding accounts receivable (excluding receivables from Biomedical Advanced Research and Development Authority (BARDA)) as of December 31, 2015.

For the year ended December 31, 2014, our sales were concentrated with respect to three distributors and one direct customer, which comprised 52% of our product revenue recognized. Three distributors accounted for 92% of total outstanding accounts receivable (excluding receivables from BARDA) as of December 31, 2014.

For the year ended December 31, 2013, our sales were concentrated with respect to one distributor, which comprised 26% of our product revenue recognized. Two distributors and one direct customer accounted for 55% of total outstanding accounts receivable as of December 31, 2013.

Product revenues, classified by geographic location, are as follows:

	Years ended

	2015					2014					2013
	Product Revenues		% of Total			Product Revenues		% of Total			Product Revenues		% of Total

Americas	$	982,000		20	%	$	1,224,000		25	%	$	1,152,000		16	%
Japan		2,394,000		50	%		3,068,000		62	%		1,450,000		21	%
Europe		675,000		14	%		649,000		13	%		1,948,000		27	%
Asia Pacific		787,000		16	%		12,000		0	%		2,572,000		36	%
Total product revenues	$	4,838,000		100	%	$	4,953,000		100	%	$	7,122,000		100	%

Research and Development

We earn revenue for performing tasks under research and development agreements with both commercial enterprises, such as Olympus and Senko, and governmental agencies like the U.S. Department of Health and Human Service’s BARDA. Revenue earned under development agreements with commercial enterprises is classified as development revenues. Revenues derived from reimbursement of direct out-of-pocket expenses for research costs associated with government contracts are recorded as government contract and other within development revenues. Government contract revenue is recorded at the gross amount of the reimbursement. The costs associated with these reimbursements are reflected as a component of research and development expense in our consolidated statements of operations.

In the third quarter of 2012, we were awarded a contract to develop a new countermeasure for thermal burns valued at up to $106 million with BARDA. The initial base period included $4.7 million tranche over two years and covered preclinical research and continued development of Cytori’s Celution® system to improve cell processing. The additional contract options, if fully executed, cover clinical development through FDA approval under a device-based PMA regulatory pathway. In August 2014, BARDA exercised Option 1 of the contract for Cytori to perform research, regulatory, clinical and other tasks required for initiation of a pilot clinical trial of the Celution System in thermal burn injury for a total cost-plus fixed fee of up to $12.1 million. In December 2014, we executed an amendment to the August 2014 contract option to fund continued investigation and development of Cytori Cell Therapy (DCCT-10) for use in thermal burn injuries, which increased the option extension to $14.1 million. Upon IDE approval by the FDA, we anticipate BARDA will increase funding to cover costs associated with execution of the clinical trial, currently estimated at approximately $8.3 million, and bringing the combined value of the first option to up to $22.4 million. This is a cost reimbursement contract, and related government contract revenue was recorded at the gross amount of reimbursement starting in the fourth quarter of 2012.

Refer to Note 8 for discussion about our arrangement with Senko.

Research and Development

Research and development expenditures, which are charged to operations in the period incurred, include costs associated with the design, development, testing and enhancement of our products, regulatory fees, the purchase of laboratory supplies, and pre-clinical and clinical studies as well as salaries and benefits for our research and development employees.

Also included in research and development expenditures are costs incurred to support the government reimbursement contract.

$6,345,000, $2,461,000, and $3,053,000 qualified expenses were incurred for the years ended December 31, 2015, 2014 and 2013, related to our government contract with BARDA.

Deferred Financing Costs and Other Debt-Related Costs

Deferred financing costs are capitalized and amortized to interest expense over the term of the associated debt instrument using the effective interest method. If the maturity of the debt is accelerated because of default or early debt repayment, then the amortization would be accelerated.

Income Taxes

Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income (loss) in the years in which those temporary differences are expected to be recovered or settled. Due to our history of losses, a full valuation allowance has been recognized against our deferred tax assets.

Stock Based Compensation

We recognize the fair value of all share-based payment awards in our statements of operations over the requisite vesting period of each award and over the period during which the employee and non-employee director is required to provide service in exchange for the award. We estimate the fair value of these options using the Black-Scholes option pricing model using assumptions for expected volatility, expected term, and risk-free interest rate. Expected volatility is based primarily on historical volatility and is computed using daily pricing observations for recent periods that correspond to the expected term of the options. The expected life is based on the expected term of the options. The risk-free interest rate is the interest rate for treasury instruments with maturities that approximate the expected term.

Segment Information

For the years ended December 31, 2015, 2014 and 2013, all of our financial results relate to cell therapy, therefore we report our results as a single segment.

Loss Per Share

Basic per share data is computed by dividing net income or loss allocable to common stockholders by the weighted average number of common shares outstanding during the period. Diluted per share data is computed by dividing net income or loss allocable to common stockholders by the weighted average number of common shares outstanding during the period increased to include, if dilutive, the number of additional common shares that would have been outstanding as calculated using the treasury stock method. Potential common shares were related entirely to outstanding but unexercised options, warrants, employee stock purchase plans, and restricted stock awards for all periods presented.

We have excluded all potentially dilutive securities, including unvested performance-based restricted stock and warrants, from the calculation of diluted loss per share allocable to common stockholders for the years ended December 31, 2015, 2014 and 2013, as their inclusion would be antidilutive. Potentially dilutive common shares excluded from the calculations of diluted loss per share were 12.3 million, 43.7 million and 17.2 million for the years ended December 31, 2015, 2014 and 2013, respectively.

Recent Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board, or the FASB, or other standard setting bodies that the Company adopts as of the specified effective date. The Company believes that the impact of recently issued standards that are not yet effective will not have a material impact on its financial condition or results of operations upon adoption.

In May 2014, the Financial Accounting Standards Board (FASB) and International Accounting Standards Board (IASB) jointly issued Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606). The standard requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services. The effective date of ASU 2014-09 is for annual reporting periods beginning after December 15, 2018. The Company is currently evaluating the impact of adopting ASU 2014-09 on its consolidated financial statements.

In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest (Subtopic 835-30). The standard requires debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the debt liability. The effective date of ASU 2015-03 is for reporting periods beginning after December 15, 2015. The Company is currently evaluating the impact of ASU 2015-03 on its consolidated financial statements.

In July 2015, the FASB issued ASU 2015-11, Inventory – Simplifying the Measurement of Inventory (Topic 330). The standard requires companies to measure inventory (excluding inventory measured using LIFO and retail inventory methods) at the lower of cost or net realizable value. The effective date of ASU 2015-11 is for reporting periods beginning after December 15, 2016. There is not expected to be a material impact of ASU 2015-11 on the Company’s consolidated financial statements.

In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes, to simplify the presentation of deferred income taxes by requiring that deferred tax liabilities and assets be classified as noncurrent in a classified balance sheet. The effective date of ASU 2015-17 is for reporting periods beginning after December 15, 2016. The ASU 2015-17 has been early adopted on the Company’s consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The new topic supersedes Topic 840, Leases, and increases transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and requires disclosures of key information about leasing arrangements. The effective date of ASU 2016-02 is for reporting periods beginning after December 15, 2018. ASU 2016-02 mandates a modified retrospective transition method. The Company is currently evaluating the impact of ASU 2016-02 on its consolidated financial statements.