Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2013

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

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

For the three and nine months ended September 30, 2013 and 2012, the Company’s condensed consolidated statements of operations reflect stock-based compensation expense for stock options granted under its long-term incentive plans and allocated as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2013		2012		2013		2012
Cost of service revenues	$	12,909	$	18,039	$	38,123	$	44,796
Research and development		12,392		17,110		48,288		59,622
Sales and marketing		2,789		2,851		8,612		7,109
General and administrative		1,487		105,945		174,509		346,236
Total stock-based compensation	$	29,577	$	143,945	$	269,532	$	457,763

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

The following assumptions were used to estimate the fair value of options granted for the nine months ended September 30, 2013 and 2012 using the Black-Scholes option-pricing model:

	September 30,
	2013			2012
Risk free interest rate		1.5	%		1.1	%
Expected term (years)		6.6			6.3
Expected volatility		71.3	%		57.6	%
Expected dividend yield		-			-

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

A summary of the employee stock option activity for the nine months ended September 30, 2013 is as follows:

					Weighted
					Average
			Weighted		Remaining
	Number of		Average		Contractual
	Shares		Exercise Price		Term
Options outstanding at January 1, 2013		597,504	$	13.03
Granted		1,850		7.15
Exercised		-
Cancelled/Forfeited		(30,070)		14.61
Expired		(14,906)		15.98
Options outstanding at September 30, 2013		554,378		12.84		4.90
Options exercisable at September 30, 2013		484,582		12.89		4.53