13. Equity (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Year Ended December 31,
	2012		2011
Cost of revenue	$	13,698	$	12,186
General and administrative		979,547		1,479,356
Sales and marketing		88,282		368,904
Engineering, research and development		714,267		294,100
	$	1,795,794	$	2,154,546

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Shares			Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1, 2011		2,045,524		$	5.52
Granted		185,000			8.72
Exercised		(4,250	)		4.04
Forfeited or expired		(24,500	)		5.93
Outstanding at December 31, 2011		2,201,774		$	5.78
Granted		317,500			2.00
Exercised		(161,400	)		0.13
Forfeited or expired		(1,732,874	)		6.51
Outstanding at December 31, 2012		625,000			3.32		5.1 years	$	—
Vested or expected to vest at December 31, 2012		612,500			3.32		5.1 years	$	—
Exercisable at December 31, 2012		464,167			3.43		4.6 years	$	—

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

	Options Outstanding							Options Exercisable
Exercise Price		Number of Options		Weighted- Average Remaining Contractual Life		Weighted- Average Exercise Price			Number of Options		Weighted- Average Remaining Contractual Life		Weighted- Average Exercise Price
2.00 - 2.50			330,000		5.4 years		2.02			197,500		4.9 years		2.03
4.00 - 4.30			232,500		3.9 years		4.08			232,500		3.9 years		4.08
6.58			40,000		7.5 years		6.58			26,667		7.5 years		6.58
8.60 - 8.88			22,500		8.5 years		8.65			7,500		8.5 years		8.65
			625,000							464,167

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2012			2011
Risk free interest rate		0.31% - 0.94%			1.23% - 2.82%
Expected dividend yield		0	%		0	%
Expected term (in years)		2.5 – 6.5			6.0 – 6.5
Expected volatility		70	%		70	%
Pre-vesting forfeiture rate		2	%		2	%

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

	Number of Shares			Weighted-Average Fair Value
Nonvested at January 1, 2011		191,666		$	8.02
Granted		12,000		$	8.60
Vested
Forfeited		(12,500	)	$	6.42
Nonvested at December 31, 2011		191,166		$	8.16
Granted		—
Vested		(50,000	)	$	7.62
Forfeited		(18,500	)	$	8.41
Nonvested at December 31, 2012		122,666		$	8.34

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

	Common Shares			Common Shares Weighted-Average Exercise Price		Preferred Shares			Preferred Shares Weighted-Average Exercise Price
Outstanding at January 1, 2011		370,064		$	7.16		100,000		$	2.00
Issued		1,825,762		$	5.66
Exercised		—
Expired		(4,524	)	$	6.30
Reclassification of preferred warrant		50,000		$	4.00		(100,000	)	$	2.00
Other		(21,756	)	$	8.26
Outstanding at December 31, 2011		2,219,546		$	5.84
Outstanding at January 1, 2012		2,219,546		$	5.84
Issued		5,300		$	5.04
Exercised		—
Expired		(9,166	)	$	6.30
Conversion to Common Stock		(234,019	)	$	6.77
Outstanding at December 31, 2012		1,981,661		$	5.75

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]

	2012		2011
Risk free interest rate		0.25% - 0.36%		0.01% - 0.60%
Expected dividend yield		0%		0%
Expected term (in years)		2.0 – 3.0		0.0 - 4.0
Expected volatility		70%		70%