Stock-Based Compensation Arrangements (Tables)

6 Months Ended

Jun. 30, 2015

Stock-Based Compensation Arrangements [Abstract]

Total Compensation Cost Recorded for Stock-Based Compensation

Total stock-based compensation is as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Stock option grants beginning of period	$	141,383	$	120,650	$	239,823	$	240,182
Stock-based arrangements during the period:
Stock option grants		110,323		127		157,371		1,167
Restricted stock issued:
Employee stock purchase plan		1,219		1,801		2,041		3,450
	$	252,925	$	122,578	$	399,235	$	244,799

Schedule of Stock option activity

The following table details stock option activity:

	Six Months Ended				Six Months Ended
	June 30, 2015				June 30, 2014
			Weighted Avg				Weighted Avg
			Exercise				Exercise
	Shares		Price		Shares		Price
Outstanding, beginning of period		4,523,900	$	0.39		5,884,050	$	0.43
Stock options granted		17,779,027		0.17		137,000		0.35
Stock options exercised		—		0.00		—		0.00
Restricted stock exercised		—		0.00		—		0.00
Canceled/Expired		(14,060)		0.28		(31,250)		2.43
Outstanding, end of period		22,288,867	$	0.28		5,989,800	$	0.42
Exercisable, end of period		2,609,643	$	0.36		711,175	$	0.72