Stockholders Equity (Tables)

3 Months Ended

Mar. 31, 2014

A stock option grant allows the holder of the option to purchase a share of the Company’s common stock in the future at a stated price. Options granted under the Plans vest as determined by the Company’s Compensation and Stock Option Committee and expire over varying terms, but not more than ten years from the date of grant. Stock option activity for the three months ended March 31, 2014 is as follows:

	Stock Option Activity under the Plans
	Stock Options			Exercise Price per Share		Weighted Average Exercise Price		Weighted Average Remaining Life (Years)
Outstanding at December 31, 2013		252,133		$	4.80—$248.64	$	57.90		7.36
Granted		—			—		—
Forfeited		(14,304	)	$	7.36—$248.64	$	109.54
Expired		—			—		—
Outstanding at March 31, 2014		237,829		$	4.80—$248.64	$	54.79		7.13

Assumptions used to determine the fair value of stock options

There were no options granted during the three months ended March 31, 2014. The estimated fair value of each option award granted during the three month period ended March 31, 2013 was determined on the date of grant using an option pricing model with the following assumptions:

		Three months ended March 31, 2013
Dividend yield		None
Expected volatility		86.16% — 86.51%
Weighted average volatility		86.20%
Risk-free interest rates		1.16% — 1.36%
Expected life (in years)		6.8

Restricted stock activity

Restricted stock activity for the three months ended March 31, 2014 is as follows:

	Restricted Stock Activity under the Plans
	Restricted Stock			Weighted Average Grant Date Fair Value
Non-vested at December 31, 2013		20,358		$	16.88
Granted		—			—
Vested		(1,624	)		75.32
Forfeited		(71	)		39.26
Non-vested at March 31, 2014		18,663		$	11.71