Note 14 - Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Quarterly Financial Information [Table Text Block]

	Three months ended
2019	March 31		June 30		September 30		December 31
	(in thousands, except per share data)
Total net sales	$	28,479	$	29,483	$	29,100	$	30,170
Gross profit		19,464		20,315		20,166		19,908
Income (loss) from operations		4,435		5,915		5,905		4,928
Net income		3,513		4,624		5,184		4,613
Earnings per share
Basic	$	0.18	$	0.23	$	0.26	$	0.23
Diluted	$	0.17	$	0.23	$	0.25	$	0.23

	Three months ended
2018	March 31		June 30		September 30		December 31
	(in thousands, except per share data)
Total net sales	$	25,994	$	27,020	$	24,165	$	28,389
Gross profit		18,474		18,992		17,255		19,218
Income (loss) from operations		4,862		11,541		4,613		7,193
Net income		3,853		8,751		4,314		6,025
Earnings per share
Basic	$	0.20	$	0.45	$	0.22	$	0.31
Diluted	$	0.19	$	0.43	$	0.21	$	0.30