Basic and Diluted Earnings Per Share (EPS) Data Basic and Diluted Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share, Basic and Diluted [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

The following table reconciles the denominator used to compute basic EPS to the denominator used to compute diluted EPS for the indicated periods:

	Year ended December 31,
	2013		2012		2011
Numerator:
Net income attributable to CDI	$	12,884	$	19,116	$	14,833
Denominator:
Basic weighted-average shares	19,442		19,344		19,144
Dilutive effect of stock-based awards	297		401		212
Diluted weighted-average shares	19,739		19,745		19,356
Earnings per common share:
Basic	$	0.66	$	0.99	$	0.77
Diluted	$	0.65	$	0.97	$	0.77