Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Jun. 30, 2012

Schedule of changes in common stock options [Table Text Block]

				Weighted
				Average
				Exercise
	Options			Price
Outstanding at December 31, 2012	3,898,198		$	1.75
Granted	200,000		$	1.00
Exercised	(30,000	)	$	0.51
Forfeited	—			N/A
Expired	(3,198	)	$	2.40
Outstanding at June 30, 2013	4,065,000		$	1.72
Options exercisable at June 30, 2013	2,030,000		$	1.59

				Weighted
				Average
				Exercise
	Options			Price
Outstanding at December 31, 2011	3,141,198		$	1.65
Granted	1,040,000		$	2.04
Exercised	(21,750	)	$	0.63
Forfeited	(250,000	)	$	1.83
Expired	(1,250	)	$	1.40
Outstanding at June 30, 2012	3,908,198		$	1.75
Options exercisable at June 30, 2012	1,283,198		$	1.37