Note 4 - Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Products and services transferred at point in time		Products and services transferred over time		Total
Diabetes	$	-	$	69,733	$	69,733
Interventional Catheters		14,572		-		14,572
Other Medical		8,725		5,359		14,084
Hearing Health Value Based DTEC		3,479		-		3,479
Hearing Health Value Based ITEC		8,048		-		8,048
Hearing Health Legacy OEM		10,848		-		10,848
Professional Audio Communications		4,442		-		4,442
Total Revenue, net	$	50,114	$	75,092	$	125,206

	Products and services transferred at point in time		Products and services transferred over time		Total
Diabetes	$	-	$	59,311	$	59,311
Interventional Catheters		7,361		-		7,361
Other Medical (a)		6,677		5,688		12,365
Hearing Health Value Based DTEC		4,430		-		4,430
Hearing Health Value Based ITEC		5,558		-		5,558
Hearing Health Legacy OEM		8,968		-		8,968
Professional Audio Communications		4,780		-		4,780
Total Revenue, net	$	37,774	$	64,999	$	102,773

Revenue from External Customers by Geographic Areas [Table Text Block]

	Year Ended December 31,
Net Revenue to Geographical Areas	2021		2020
United States	$	92,921	$	75,326
Europe		6,561		5,501
Asia		12,554		11,476
All other countries		13,170		10,470
Consolidated	$	125,206	$	102,773