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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2015
Financial Assets Measured at Fair Value on Recurring Basis | The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of December 31 (in thousands):
|  |  |  |  | Fair Value Measurements
|  | Carrying Amount as of |  | As of December 31, 2014
|  | December 31, 2014 |  | Level 1 |  | Level 2 |  | Level 3
Cash equivalents |  | $ | 12,166 |  |  | $ | 12,166 |  |  | $ | — |  |  | $ | — |
Marketable securities |  |  | 220 |  |  |  | 220 |  |  |  | — |  |  |  | — |
|  | $ | 12,386 |  |  | $ | 12,386 |  |  | $ | — |  |  | $ | — |
|  |  |  |  | Fair Value Measurements
|  | Carrying Amount as of |  | As of December 31, 2015
|  | December 31, 2015 |  | Level 1 |  | Level 2 |  | Level 3
Cash equivalents |  | $ | 13,218 |  |  | $ | 13,218 |  |  | $ | — |  |  | $ | — |
Marketable securities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
|  | $ | 13,218 |  |  | $ | 13,218 |  |  | $ | — |  |  | $ | — |
Net of Inventory Obsolescence Reserve | Inventory, which includes the ex-factory cost of goods, capitalized warehouse costs and in-bound freight and duty, is valued at the lower of cost (first-in, first-out) or market, net of inventory obsolescence reserve, and consists of the following (in thousands):
|  | December 31,
|  | 2014 |  | 2015
Raw materials |  | $ | 1,040 |  |  | $ | 3,717 |
Finished goods |  |  | 77,787 |  |  |  | 56,827 |
|  | $ | 78,827 |  |  | $ | 60,544 |
Property and Equipment, Estimated Useful Lives | Property and equipment are stated at cost and are being depreciated using the straight-line method over their estimated useful lives as follows:
Office equipment | 5 years
Automobiles | 5 years
Furniture and fixtures | 5 - 7 years
Leasehold improvements | Shorter of length of lease or 10 years
Reconciliation of the Weighted-Average Shares Used in Computation of Basic and Diluted Earnings Per Share | The following table is a reconciliation of the weighted-average shares used in the computation of basic and diluted earnings per share (“EPS”) for the periods presented (in thousands, except per share data):
|  | 2013
|  |  |  |  | Weighted |  |  |
|  |  |  |  | Average |  |  |
|  | Loss |  | Shares |  | Per Share
Basic EPS |  |  |  |  |  |  |  |  |
Loss available to common stockholders |  | $ | (53,906 | ) |  |  | 22,200 |  |  | $ | (2.43 | )
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |
Assumed conversion of convertible senior notes |  |  | — |  |  |  | — |  |  |  |  |
Options and warrants |  |  | — |  |  |  | — |  |  |  |  |
Unvested restricted stock grants |  |  | — |  |  |  | — |  |  |  |  |
Diluted EPS |  |  |  |  |  |  |  |  |  |  |  |
Loss available to common stockholders plus assumed exercises and conversion |  | $ | (53,906 | ) |  |  | 22,200 |  |  | $ | (2.43 | )
|  | 2014
|  |  |  |  | Weighted |  |  |
|  |  |  |  | Average |  |  |
|  | Income |  | Shares |  | Per Share
Basic EPS |  |  |  |  |  |  |  |  |
Income available to common stockholders |  | $ | 21,509 |  |  |  | 20,948 |  |  | $ | 1.03 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |
Assumed conversion of convertible senior notes |  |  | 7,345 |  |  |  | 20,388 |  |  |  |  |
Options and warrants |  |  | — |  |  |  | — |  |  |  |  |
Unvested restricted stock grants |  |  | — |  |  |  | 180 |  |  |  |  |
Diluted EPS |  |  |  |  |  |  |  |  |  |  |  |
Income available to common stockholders plus assumed exercises and conversion |  | $ | 28,854 |  |  |  | 41,516 |  |  | $ | 0.70 |
|  | 2015
|  |  |  |  | Weighted |  |  |
|  |  |  |  | Average |  |  |
|  | Income |  | Shares |  | Per Share
Basic EPS |  |  |  |  |  |  |  |  |
Income available to common stockholders |  | $ | 23,254 |  |  |  | 19,435 |  |  | $ | 1.20 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |
Assumed conversion of convertible senior notes |  |  | 7,385 |  |  |  | 23,369 |  |  |  |  |
Options and warrants |  |  | — |  |  |  | — |  |  |  |  |
Unvested performance stock grants |  |  | — |  |  |  | 347 |  |  |  |  |
Unvested restricted stock grants |  |  | — |  |  |  | 170 |  |  |  |  |
Diluted EPS |  |  |  |  |  |  |  |  |  |  |  |
Income available to common stockholders plus assumed exercises and conversion |  | $ | 30,639 |  |  |  | 43,321 |  |  | $ | 0.71 |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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