Quarterly Results of Operations (Unaudited)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations (Unaudited)

Quarterly Results of Operations (Unaudited)

	2020
(Dollars in thousands, except per share amounts)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales	$	198,810	$	191,157	$	201,944	$	210,672
Gross margin	$	65,630	$	69,969	$	75,518	$	80,703
Net income	$	13,259	$	14,520	$	7,006	$	15,205
Net income per share:
Basic	$	0.71	$	0.78	$	0.37	$	0.82
Diluted	$	0.71	$	0.78	$	0.37	$	0.81

	2019
(Dollars in thousands, except per share amounts)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales	$	239,798	$	242,852	$	221,842	$	193,768
Gross margin	$	85,394	$	85,828	$	78,867	$	64,203
Net income (loss)	$	28,399	$	24,293	$	23,387	$	(28,760)
Net income (loss) per share:
Basic	$	1.53	$	1.31	$	1.26	$	(1.55)
Diluted	$	1.52	$	1.30	$	1.25	$	(1.55)