Stock-Based Compensation Arrangements (Tables)

3 Months Ended

Mar. 31, 2013

Stock-Based Compensation Arrangements [Abstract]

Total Compensation Cost Recorded for Stock-Based Compensation

Total compensation cost that has been charged against income for stock-based compensation arrangements is as follows:

	Three Months Ended March 31,
	2013		2012
Stock option grants beginning of period	$	26,722	$	21,434
Stock-based arrangements during the period:
Stock option grants		3,050		12,506
Employee stock purchase plan		917		1,163
	$	30,689	$	35,103

Common Stock Weighted Average Purchase Price

The following table details stock option and restricted stock activity for the three months ended March 31, 2013 and 2012:

	Three Months Ended March 31, 2013					Three Months Ended March 31, 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		—			—
Stock options exercised		(2,000	)		0.12		—			—
Restricted stock exercised		(2,500	)		0.00		(2,500	)		0.00
Canceled/Expired		(62,000	)		1.89		(89,900	)		0.62
Outstanding, end of period		2,435,500		$	.98		2,135,667		$	1.16
Exercisable, end of period		1,371,725		$	1.43		1,346,767		$	1.51