Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of unaudited quarterly financial data

(in thousands, except per share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
2018
Net sales	$	38,351	$	18,420	$	68,698	$	53,317
Cost of sales	$	10,846	$	5,402	$	16,662	$	13,361
Gross profit	$	27,505	$	13,018	$	52,036	$	39,956
(Loss) income before taxes	$	(9,306)	$	(22,777)	$	3,972	$	(289)
Net (loss) income	$	(12,876)	$	(18,402)	$	2,954	$	(1,916)
Net (loss) income per common share:
Basic	$	(0.26)	$	(0.37)	$	0.06	$	(0.04)
Diluted	$	(0.26)	$	(0.37)	$	0.06	$	(0.04)

(in thousands, except per share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
2017
Net sales	$	32,730	$	16,389	$	60,772	$	54,135
Cost of sales	$	5,839	$	3,906	$	11,620	$	11,290
Gross profit	$	26,891	$	12,483	$	49,152	$	42,845
(Loss) income before taxes	$	(10,647)	$	(14,302)	$	13,178	$	30,754
Net (loss) income	$	(12,029)	$	2,607	$	9,546	$	23,438
Net (loss) income per common share:
Basic	$	(0.24)	$	0.05	$	0.19	$	0.47
Diluted	$	(0.24)	$	0.05	$	0.19	$	0.47