Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Stock Based Compensation [Abstract]

Fair value and assumptions used in determining fair value of stock options

Stock Options  The Company calculates the fair value of stock options granted using the Black-Scholes valuation model. The Company calculates the fair value of stock options granted outside of the 2000 Stock Incentive Plan using liability accounting. These awards are classified as a liability and remeasured at fair value at the end of each reporting period using the Black-Scholes valuation model and changes in fair value are included in compensation expense in the Consolidated Statements of Comprehensive Loss (see additional disclosures related to stock options granted outside the 2000 Stock Incentive Plan at the end of this footnote).

The following table summarizes the grant date fair value and assumptions used in determining the fair value of stock options granted under and outside the 2000 Stock Incentive Plan during the years ended December 31,2012 and 2011 (no stock options were granted during 2010).

	2012	2011
Volatility	96.2%	111.6%
Risk-free interest rate	0.7%	0.9%
Dividend yield	0.0%	0.0%
Expected option term (in years)	6.25	6.25
Weighted-average grant date fair value of stock options granted	$3.21	$2.68

Stock option activity

The following table summarizes stock option activity for stock options granted under and outside the 2000 Stock Incentive Plan for the years ended December 31,2012,2011 and 2010 as follows:

	Number of Shares	Weighted Average Exercise Price	Weighted Average Remaining Contractual Life in Years	Aggregate Intrinsic Value
Options outstanding at December 31, 2009	259,275	$23.00
Granted	-	-
Exercised	-	-
Forfeited and expired	(45,000)	48.04
Options outstanding at December 31, 2010	214,275	$18.43
Vested and expected to vest at December 31, 2010	214,275	$18.43
Exercisable at December 31, 2010	214,275	$18.43
Options outstanding at December 31, 2010	214,275	$18.43
Granted	766,000	3.77
Exercised	(5,200)	6.16
Forfeited and expired	(83,324)	26.57
Options outstanding at December 31, 2011	891,751	5.15
Vested and expected to vest at December 31, 2011	816,414	5.30
Exercisable at December 31, 2011	125,751	13.54
Options outstanding at December 31, 2011	891,751	$5.15
Granted	1,116,384	4.12
Exercised	(30,250)	7.08
Forfeited and expired	(160,046)	9.54
Options outstanding at December 31, 2012	1,817,839	4.10	7.84	$4,790,817
Vested and expected to vest at December 31, 2012	1,692,915	4.11	7.71	$4,457,650
Exercisable at December 31, 2012	438,145	4.59	2.43	$1,003,740

Summary of shares outstanding and exercisable by range of exercise price

Outstanding as of December 31, 2012					Exercisable as of December 31, 2012
Range of Exercise Prices		Number of Options	Weighted Average Remaining Contractual Term (in Years)	Weighted Average Excersise Price	Number of Options	Weighted Average Excersise Price
$3.03	$3.13	482,305	6.35	$3.03	234,495	$3.03
$3.14	$3.39	21,400	9.44	$3.24	-	$-
$3.40	$3.47	708,314	9.69	$3.40	-	$-
$3.48	$4.05	16,500	9.51	$3.69	-	$-
$4.55	$4.96	186,170	9.74	$4.55	-	$-
$4.97	$5.89	4,000	9.75	$4.97	-	$-
$5.90	$6.33	198,400	1.66	$5.90	182,900	$5.90
$6.34	$8.29	185,250	9.64	$6.64	5,250	$6.50
$8.30	$17.59	10,250	0.80	$9.18	10,250	$9.18
$17.60	$17.60	5,250	0.36	$17.60	5,250	$17.60

RS and RSU activity

The following table summarizes the total RS and RSU awards granted both under and outside of the 2000 Stock Incentive Plan during the years ended December 31,2012,2011 and 2010 as follows:

		Weighted		Weighted
	Number of	Average	Number of	Average
	RS	Grant Price	RSU's	Grant Price
Outstanding at December 31, 2009	8,772	$17.10	-	-
Granted	30,270	8.80	-	-
Released	(39,042)	10.72	-	-
Outstanding at December 31, 2010	-	-	-	-
Granted	-	-	491,255	$6.36
Forfeited	-	-	(4,230)	5.13
Outstanding at December 31, 2011	-	-	487,025	6.37
Granted	-	-	61,011	3.44
Released			(322,819)	4.59
Forfeited	-	-	(9,692)	5.69
Outstanding at December 31, 2012	-	$-	215,525	$6.26
Expected to Vest	-	$-	206,395	$6.23