Note 3 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net Sales	$ 35,276	$ 29,452	$ 98,505	$ 81,706
Medical [Member]
Net Sales	20,539	16,977	54,343	45,390
Industrial [Member]
Net Sales	10,838	9,383	28,959	25,777
Aerospace and Defense [Member]
Net Sales	3,899	3,092	15,203	10,539
Transferred over Time [Member]
Net Sales	26,059	24,113	72,536	65,567
Transferred over Time [Member] | Medical [Member]
Net Sales	14,753	13,762	37,725	35,497
Transferred over Time [Member] | Industrial [Member]
Net Sales	8,104	7,468	21,563	20,385
Transferred over Time [Member] | Aerospace and Defense [Member]
Net Sales	3,202	2,883	13,248	9,685
Transferred at Point in Time [Member]
Net Sales	8,173	4,834	22,599	14,235
Transferred at Point in Time [Member] | Medical [Member]
Net Sales	5,366	2,933	15,044	8,876
Transferred at Point in Time [Member] | Industrial [Member]
Net Sales	2,314	1,757	6,301	4,832
Transferred at Point in Time [Member] | Aerospace and Defense [Member]
Net Sales	493	144	1,254	527
Noncash Consideration [Member]
Net Sales	1,044	505	3,370	1,904
Noncash Consideration [Member] | Medical [Member]
Net Sales	420	282	1,574	1,017
Noncash Consideration [Member] | Industrial [Member]
Net Sales	420	158	1,095	560
Noncash Consideration [Member] | Aerospace and Defense [Member]
Net Sales	$ 204	$ 65	$ 701	$ 327