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Stockholders' Equity/(Deficit) (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Summary of Preferred Stock Allocated to Investors

(the “Lender”). The Purchase Agreement provides for the Company to issue and sell to the Investor, upon stockholder approval which was received on June 9, 2015, shares of the Company’s preferred stock in the amounts and at the eventual pre-split prices set forth in the following table:

Convertible Preferred Stock		Shares				Price Per Share				Total Investment
Series AA-1			8,427,004			$	12.00			$	101,124,042
Series AA-2			7,223,145			$	6.00				43,338,870
			15,650,149							$	144,462,912

Stock Options Valuation Assumptions

The assumptions used in the Black-Scholes model were as follows for stock options granted in the years ended December 31, 2015, 2014 and 2013:

		2015		2014		2013
Risk-free interest rate		1.78 - 2.00%		2.1-2.7%		.41-1.28%
Expected volatility of common stock		64.47 - 65.95%		63.5-65.0%		59.2-68.2%
Dividend yield		0%		0%		0%
Expected life of options		6.1 - 8.2 years		6.1-8.2 years		3.0-4.1 years

Summary of Stock Option Activity

Additional information with respect to both plans stock option activity is as follows:

		Number of Shares				Weighted Average Exercise Price
Outstanding at December 31, 2012			285,013			$	39.72
Granted			102,819			$	35.88
Exercised			(17,042	)		$	26.88
Cancelled			(121,133	)		$	43.32
Outstanding at December 31, 2013			249,656			$	39.72
Granted			85,524			$	25.68
Exercised			—			$	—
Cancelled			(27,390	)		$	41.76
Outstanding at December 31, 2014			307,791			$	32.04
Granted			137,667			$	12.48
Exercised			—			$	—
Cancelled			(70,174	)		$	32.88
Outstanding at December 31, 2015			375,283			$	32.04
Options exercisable at December 31, 2013			176,575			$	35.28
Options exercisable at December 31, 2014			221,109			$	33.24
Options exercisable at December 31, 2015			275,735			$	27.48

Stock Options Outstanding

The following table summarizes information about stock options outstanding at December 31, 2015:

Stock Options Outstanding

Range of Exercise Prices		Number of Shares Outstanding				Weighted Average Remaining Contractual Life in Years		Weighted Average Exercise Price
$12.48 - $12.48			141,833			9.00		$	12.48
$26.40 - $26.40			79,370			8.01		$	26.40
$32.76 -$34.68			132,413			1.59		$	33.96
$39.00 -$46.80			21,667			2.24		$	41.04
			375,283			5.79		$	24.60

Estimated Fair Value of Restricted Stock Award

A summary of the status of the restricted stock awards as of December 31, 2015 and changes during the year ended December 31, 2015 is presented as follows:

		Number of Shares				Weighted Average Grant Date Fair Value
Unvested at December 31, 2014			69,851			$	16.56
Granted			105,824			$	12.48
Vested			(75,467	)		$	12.60
Cancelled			(7,513	)		$	14.40
Unvested at December 31, 2015			92,696			$	13.20

Summary of Common Stock Warrants Outstanding

The following table summarizes our common stock warrants outstanding at December 31, 2015:

Common Stock Warrants				Exercise Price				Termination Date
	130,208			$	43.20			11/9/2016

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

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