The calculation of basic and diluted earnings per share using the two-class method for the three and nine months ending September 30, 2019 is presented below:


	Three months ended		Nine months ended
	September 30,		September 30,
(dollars and shares in thousands, except per share data)	2019		2019
Net income	$	7,104	$	21,888
Dividends and undistributed earnings allocated to participating securities		154		514
Net income available to common shareholders	$	6,950	$	21,374
Weighted-average common shares outstanding for basic earnings per share		14,274		13,957
Dilutive effect of stock-based awards		352		360
Weighted-average common shares outstanding for diluted earnings per share		14,626		14,317
Earnings per common share:
Basic earnings per common share	$	0.49	$	1.53
Diluted earnings per common share	$	0.48	$	1.49

For the three and nine months ended September 30, 2018, the basic and diluted earnings per share were calculated using the treasury stock method, as presented in the table below. The Company determined that the impact to diluted earnings per share would be immaterial if calculated under the two-class method for the three and nine months ended September 30, 2018.

The calculation of basic and diluted earnings per share using the treasury stock method for the three and nine months ending September 30, 2018 is presented below:


	Three months ended		Nine months ended
	September 30,		September 30,
(dollars and shares in thousands, except per share data)	2018		2018
Basic:
Net income attributable to common shareholders	$	7,370	$	19,833
Weighted-average common shares outstanding		13,777		13,759
Basic earnings per common share	$	0.53	$	1.44
Diluted:
Net income attributable to common shareholders		7,370		19,833
Weighted-average common shares outstanding		13,777		13,759
Add: Dilutive effect of stock-based awards		294		301
Weighted-average common shares outstanding for diluted EPS		14,071		14,060
Diluted earnings per common share	$	0.52	$	1.41