Note 7 - Segment Information (Tables)

3 Months Ended

Mar. 31, 2017

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	North America			International			Total
For the quarter ended March 31, 20 17
Net sales	$	19,231,714		$	918,131		$	20,149,845
Gross profit		11,752,957			533,088			12,286,045
Operating income (loss)		1,811,563			(74,072	)		1,737,491
Interest expense		36,344			-			36,344
Other (income) expense, net		(17,654	)		15,003			(2,651	)
Income (loss) before income taxes		1,792,873			(89,075	)		1,703,798
Depreciation and amortization		436,281			21,837			458,118
Fixed asset additions		597,826			1,931			599,757
Total assets	$	67,016,728		$	4,252,046		$	71,268,774
For the quarter ended March 31, 20 16
Net sales	$	19,739,491		$	932,736		$	20,672,227
Gross profit		12,084,809			567,937			12,652,746
Operating income		2,341,209			21,581			2,362,790
Interest expense		23,429			-			23,429
Other (income) expense, net		(5,746	)		5,785			39
Income before income taxes		2,323,526			15,796			2,339,322
Depreciation and amortization		393,592			20,636			414,228
Fixed asset additions		602,864			4,068			606,932
Total assets	$	60,145,915		$	5,113,930		$	65,259,845

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	201 7		201 6
United States	$	17,282,664	$	17,727,629
Canada		1,773,510		1,741,756
All other countries		1,093,671		1,202,842
	$	20,149,845	$	20,672,227