Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Common stock option and restricted stock award activity under the Plan was as follows:

			Options and RSAs Outstanding
	Shares Available for Grant		Number of Shares		Weighted Average Exercise Price Per Share
Balance at December 31, 2014		689,529		2,417,918	$	2.59
Options Granted		(1,908,661)		1,908,661	$	1.02
Options Forfeited		53,021		(53,021)	$	2.27
Options Expired		42,417		(42,417)	$	2.27
Options Canceled		1,432,661		(1,432,661)	$	2.73
Restricted Stock Granted		(34,958)		34,958	$	0.76
Restricted Stock Vested		-		(34,958)	$	0.76
Balance at March 31, 2015		274,009		2,798,480	$	1.46
Total vested and expected to vest shares (options)				2,798,480	$	1.46
Total vested shares (options)				739,819	$	2.72

The following table summarizes information with respect to stock options outstanding at March 31, 2015:

Options Outstanding								Options Vested
Exercise Price Per Share		Shares Outstanding		Weighted- Average Remaining Contractual Life (Years)		Weighted- Average Exercise Price		Shares Exercisable		Weighted- Average Exercise Price Per Share
$	0.56		50,000		9.94	$	0.56		-	$	-
$	0.69		426,000		9.82	$	0.69		-	$	-
$	0.77		150,000		9.68	$	0.77		-	$	-
$	1.14		1,432,661		9.99	$	1.14		-	$	-
$	2.05		17,800		9.34	$	2.05		17,800	$	2.05
$	2.27		543,302		8.42	$	2.27		543,302	$	2.27
$	3.04		123,717		9.08	$	3.04		123,717	$	3.04
$	3.85		40,000		9.20	$	3.85		40,000	$	3.85
$	14.30		15,000		1.21	$	14.30		15,000	$	14.30
			2,798,480		9.54	$	1.46		739,819	$	2.72

The fair value of employee stock options granted was estimated using the following weighted-average assumptions for the three months ended March 31:

Stock-based compensation for employees and non-employees related to options and RSAs recognized: