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

3 Months Ended

Mar. 31, 2013

Earnings Per Share, Basic and Diluted [Abstract]

Schedule of Calculation of Numerator and Denominator in EPS

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

	Three Months Ended
	March 31,
	2013		2012
Numerator:
Net income attributable to CDI	$	2,491	$	3,823
Denominator:
Basic weighted-average shares	19,378		19,200
Dilutive effect of stock-based awards	345		373
Diluted weighted-average shares	19,723		19,573
Earnings per common share:
Basic	$	0.13	$	0.20
Diluted	$	0.13	$	0.20