Net Income per Share Attributable to Sterling Common Stockholders

9 Months Ended

Sep. 30, 2011

Net income per share attributable to Sterling common stockholders:

Net Income per Share Attributable to Sterling Common Stockholders

11.	Net Income per Share Attributable to Sterling Common Stockholders

Basic net income per share attributable to Sterling common stockholders is computed by dividing net income attributable to Sterling common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income per common share attributable to Sterling common stockholders is the same as basic net income per share attributable to Sterling common stockholders but includes dilutive stock options and warrants using the treasury stock method. Diluted earnings per common share attributable to Sterling common stockholders excludes stock options which were outstanding during the three and nine months ended September 30, 2011 to purchase 16,507 and 16,507 shares, respectively, and stock options which were outstanding during the three and nine months ended September 30, 2010 to purchase 119,407 and 119,407 shares, respectively, as such impact was anti-dilutive. During the three months ended September 30, 2011, stock options for 78,600 shares were forfeited.

The following table reconciles the numerators and denominators of the basic and diluted per common share computations for net income attributable to Sterling common stockholders for the three and nine months ended September 30, 2011 and 2010, respectively (in thousands, except per share data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
Numerator:
Net income attributable to Sterling common stockholders	$	3,461	$	3,496	$	7,716	$	9,715
Denominator:
Weighted average common shares outstanding — basic		16,386		16,199		16,444		16,135
Shares for dilutive stock options and warrants		55		350		114		413
Weighted average common shares outstanding and assume conversions— diluted		16,441		16,549		16,558		16,548
Basic net income per share attributable to Sterling common stockholders	$	0.21	$	0.22	$	0.47	$	0.60
Diluted net income per share attributable to Sterling common stockholders	$	0.21	$	0.21	$	0.47	$	0.59