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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity [Abstract]

Key assumptions for fair value calculation, stock options

	Year Ended December 31, 2012	Year Ended December 31, 2011
Risk free interest rate	0.62% - 5.11%	0.62% - 5.11%
Expected life (years)	2.82 - 7.00	2.82 - 7.00
Expected volatility	91.99% - 180.36%	93.63% - 147.4%
Expected dividends	None	None
Estimated average forfeiture rate	10%	11%

Allocation of stock-based compensation expense related to stock option grants

	Year Ended December 31, 2012	Year Ended December 31, 2011
Research and development	$ 206	$ 347
Sales and marketing	91	161
General and administrative	137	204
Director options	27	92
Stock-based compensation expense included in operating expenses	$ 461	$ 804

Summary of option activity

The summary activity under the Company's 2011 and 2009 Stock Compensation Plans, the 1999 Option Plan and Individual Plans is as follows:

	December 31, 2012				December 31, 2011
	Shares	Weighted Average Exercise Price	Aggregate Intrinsic Value	Weighted Average Remaining Contractual Life	Shares	Weighted Average Exercise Price	Aggregate Intrinsic Value	Weighted Average Remaining Contractual Life
Outstanding at beginning of period	51,353	$0.09			10,028	$0.33
Granted	2,500	$0.06			44,971	$0.05
Exercised	(203)	$0.07	$ 2		-	-	$ -
Forfeited/ Cancelled	(9,121)	$0.26			(3,645)	$0.27
Outstanding at period end	44,529	$0.05		3.2	51,353	$0.09		3.2
Options vested and exercisable at period end	23,319	$0.05		2.6	14,539	$0.19		2.6
Weighted average grant-date fair value of options granted during the period	$0.06				$0.05

Summary of the significant ranges of outstanding and exercisable options

The following table summarizes significant ranges of outstanding and exercisable options as of December 31, 2012:

Range of Exercise Prices	Options Outstanding			Options Exercisables
Range of Exercise Prices	Options Outstanding	Weighted Average Remaining Contractual Life (in years)	Weighted Average Exercise Price	Number Outstanding	Weighted Average Exercise Price
$0.00 - $0.50	44,472	5.3	$0.05	23,262	$0.05
$0.51 - $1.00	44	0.7	$0.79	44	$0.79
$1.01 - $2.00	13	0.2	$1.75	13	$1.75
	44,529			23,319

Summary of the status of the Company's non-vested shares

A summary of the status of the Company's non-vested shares as of December 31, 2012 is as follows:

Non-vested Shares	Shares	Weighted Average Grant-Date Fair Value
Non-vested at January 1, 2012	36,814	$0.05
Granted	2,500	$0.06
Forfeited	(2,149)	$0.18
Vested	(15,955)	$0.20
Non-vested	21,210	$0.05

Summary of the warrants issued

A summary of the warrants is as follows:

	December 31, 2012		December 31, 2011
	Warrants	Weighted Average Exercise Price	Warrants	Weighted Average Exercise Price
Outstanding at beginning of period	182,644	$ 0.0261	135,131	$ 0.0274
Issued	8,643	$ 0.0500	59,735	$ 0.0064
Exercised	(35,162)	$ 0.0264	(12,222)	$ 0.0011
Forfeited	-	-	-	-
Expired	(4,403)	-	-	-
Outstanding at end of period	151,722	$ (0.0269)	182,644	$ 0.0261
Exercisable at end of period	151,722	$ 0.0269	182,644	$ 0.0261

Status of the warrants outstanding

A summary of the status of the warrants outstanding as of December 31, 2012 is as follows:

Number of Warrants	December 31, 2012
Number of Warrants	Weighted Average Remaining Life	Weighted Average Exercise Price per share	Shares Exercisable
12,670	0.51	$ 0.0433	12,670
130,409	1.05	$ 0.0225	130,409
8,643	2.56	$ 0.0500	8,643
151,722	1.12	$ 0.0269	151,722

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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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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