Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2012

Deferred Compensation Arrangements [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes our outstanding stock options :

	Three Months Ended
	March 31,
	2012		2011
Options outstanding January 1,	509,422		384,507
Options granted under 2005 Plan	340,000		340,000
Options forfeited under 2005 Plan	—		(3,334	)
Options exercised under 1997 Plan	(19,266	)	(15,000	)
Options exercised under 2005 Plan	(141,819	)	(28,584	)
Options outstanding, March 31,	688,337		677,589
Exercisable at March 31,	504,994		503,996

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following table summarizes our restricted stock activity:

	Three Months Ended
	March 31,
	2012		2011
Non-vested at January 1,	1,250		3,175
Vested during the period	(1,250	)	(1,250	)
Non-vested at March 31,	—		1,925