Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

A reconciliation of shares used in calculating basic and diluted earnings per share follows:

	Three Months ended March 31,
	2013		2012
Basic		7,339,979		5,810,180
Effect of exercise of warrants		582,075		743,597
Effect of exercise of options		475		-
Diluted		7,922,529		6,553,777