Stock-Based Compensation Arrangements (Tables)

9 Months Ended

Sep. 30, 2013

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

Total Compensation Cost Recorded for Stock-Based Compensation

Total stock-based compensation is as follows:

		Three Months Ended September 30,			Nine Months Ended September 30,
	2013		2012		2013		2012
Stock option grants beginning of period	$	19,532	$	73,507	$	71,497	$	168,294
Stock-based arrangements during the period:
Stock option grants		3,061		1,238		9,170		1,249
Restricted stock issued:
Employee stock purchase plan		1,732		—		3,941		1,332
	$	24,325	$	74,745	$	84,608	$	170,875

Common Stock Weighted Average Purchase Price

The following table details stock option and restricted stock activity for the nine months ended September 30, 2013 and 2012:

	Nine Months Ended		September 30, 2013	Nine Months Ended		September 30, 2012
	Shares		Weighted Avg Exercise Price	Shares		Weighted Avg Exercise Price
Outstanding, beginning of period	2,302,000	$	1.06	2,228,067	$	1.14
Stock options granted	200,000		0.29	81,000		0.45
Stock options exercised	(252,000)		0.32	—		—
Restricted stock exercised	(2,500)		0.00	(2,500)		0.00
Canceled/Expired	(644,350)		1.08	(475,800)		0.55
Outstanding, end of period	1,603,150	$	1.07	1,830,767	$	1.27
Exercisable, end of period	668,700	$	2.07	1,397,767	$	1.49