Note 4 - Revenue Disaggregation (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three Months Ending September 30, 2020
	Over time		Point in time		Total
Aerospace	$	181	$	1,252	$	1,433
Industrial	$	217	$	1,451	$	1,668
Research	$	571	$	321	$	892
Total	$	969	$	3,024	$	3,993

	Three Months ending September 30, 2019
	Over time		Point in time		Total
Aerospace	$	1,080	$	1,426	$	2,506
Industrial	$	476	$	1,387	$	1,863
Research	$	493	$	843	$	1,336
Total	$	2,049	$	3,656	$	5,705

	Nine Months Ending September 30, 2020
	Over time		Point in time		Total
Aerospace	$	1,502	$	5,246	$	6,748
Industrial	$	741	$	2,592	$	3,333
Research	$	2,566	$	1,101	$	3,667
Total	$	4,809	$	8,939	$	13,748

	Nine Months ending September 30, 2019
	Over time		Point in time		Total
Aerospace	$	1,880	$	2,529	$	4,409
Industrial	$	1,741	$	3,989	$	5,730
Research	$	1,685	$	2,276	$	3,961
Total	$	5,306	$	8,794	$	14,100