The calculations of basic earnings per share and diluted earnings per share are computed as follows:


	Income		Weighted average number of shares		Per share amount
Year ended December 31, 2010
Basic earnings per share from continuing business	$	9,866		44,803,735	$	0.22
Basic earnings per share from discontinued business	$	5,140		44,803,735	$	0.11

Basic earnings per share	$	15,006		44,803,735	$	0.33

Effect of dilutive securities — Stock options				18,025

Diluted earnings per share from continuing business	$	9,866		44,821,760	$	0.22
Diluted earnings per share from discontinued business	$	5,140		44,821,760	$	0.11

Diluted earnings per share	$	15,006		44,821,760	$	0.33


	Income (loss)			Weighted average number of shares		Per share amount
Year ended December 31, 2011
Basic loss per share from continuing business	$	(414	)		44,803,735	$	(0.01	)
Basic earnings per share from discontinued business	$	919			44,803,735	$	0.02

Basic earnings per share	$	505			44,803,735	$	0.01

Effect of dilutive securities — Stock options					37,467

Diluted loss per share from continuing business	$	(414	)		44,841,202	$	(0.01	)
Diluted earnings per share from discontinued business	$	919			44,841,202	$	0.02

Diluted earnings per share	$	505			44,841,202	$	0.01


	Income (loss)			Weighted average number of shares		Per share amount
Year ended December 31, 2012
Basic earnings per share from continuing business	$	67,615			44,803,735	$	1.51
Basic loss per share from discontinued business	$	(694	)		44,803,735	$	(0.02	)

Basic earnings per share	$	66,921			44,803,735	$	1.49

Effect of dilutive securities — Stock options					541,518

Diluted earnings per share from continuing business	$	67,615			45,345,253	$	1.49
Diluted loss per share from discontinued business	$	(694	)		45,345,253	$	(0.01	)

Diluted earnings per share	$	66,921			45,345,253	$	1.48