Stock Option Plans (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Assumptions Used to Estimate Share-Based Compensation Expense Using Black-Scholes Model

Except for the certain grants of restricted common stock and common stock options containing market conditions as described below, the Company estimated share-based compensation expense for the years ended December 31, 2012 and 2013 using the Black-Scholes model with the following weighted average assumptions:

	Year Ended December 31,
	2012		2013
Risk free interest rate	0.79-1.32	%	0.90-1.77	%
Expected dividend yield	—		—
Expected volatility	71.9-101.2	%	102.2-107.4	%
Expected term **(in years)	6.0-6.25		5.0-6.0
Forfeiture rate	7.0	%	7.0	%

** Expected term is calculated using SAB 107, Simplified Formula. Management has concluded that the use of the simplified method for calculating the expected term of its common stock option grants is appropriate given the lack of historical exercises and the standard terms of the employee option grants, including options are granted at-the-money, exercise is conditional only on performing service through the vesting dates, termination of service causes forfeiture of options, employees have a limited number of days to exercise options after termination of service, and options are non-transferable.

Summary of Stock Option Activity

The following table summarizes the stock option activity for the 2000 Stock Plan and the 2006 Stock Plan for the year ended December 31, 2013:

			Weighted
			Average		Remaining		Aggregate
	Number of		Exercise		Contractual		Intrinsic
	Shares		Price		Life (Years)		Value
Outstanding, December 31, 2011		1,870,846	$	3.67		7.40	$	66,976
Granted		1,039,200		1.35
Exercised		—		—
Expired		(824,023)		4.77
Forfeited		(336,713)		1.84
Outstanding, December 31, 2012		1,749,310	$	2.12		8.32	$	151,919
Granted		1,115,750		1.33
Exercised		(18,023)		1.33
Expired		(253,060)		2.30
Forfeited		(305,901)		1.39
Outstanding, December 31, 2013		2,288,076	$	1.83		8.41	$	1,082
Exercisable, December 31, 2013		925,759	$	2.55		6.86	$	316

Schedule of Options Outstanding

The following table provides additional information in regards to options outstanding as of December 31, 2013:

		Options Outstanding		Options Exercisable
			Weighted Average		Weighted Average
			Remaining		Remaining
		Number of	Contractual	Number of	Contractual
Exercise Price		Options	Term	Options	Term
$	1.00 to 1.99	1,783,076	9.1	488,913	8.0
	2.00 to 2.99	287,500	7.6	219,346	7.4
	3.00 to 3.99	71,000	4.6	71,000	4.6
	4.29	11,500	3.6	11,500	3.6
	7.00	135,000	3.4	135,000	3.4
		2,288,076	8.4	925,759	6.9

Schedule of Stock Based Compensation Included in Results of Operations

Stock-based compensation expense was classified in the results of operation as follows:

	Year Ended December 31,
	2012		2013
Cost of revenue	$	57,999	$	30,527
Selling and marketing expense		54,527		29,791
General and administrative expense		672,869		372,158
Research and development expense		32,642		41,625
Totals	$	818,037	$	474,101

Schedule of Awards to Mr. Bologna

The following table summarizes these awards to Mr. Bologna:

			Intrinsic
			Value as of					Remaining
			December 31,				Options	Contractual
Type	Grant Date	Number of Awards	2013		Exercise Price		Exercisable	Term
Restricted Shares of Common Stock	12/21/2011	270,000	$	313,200	$	—	—	8.0
Options	12/21/2011	600,000	$	—	$	1.20	400,000	8.0
Options	12/21/2011	300,000	$	—	$	1.20	300,000	8.0