Note 4 - Revenue Disaggregation (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Three months ended September 30, 2022
	Over time		Point in time		Total
Aerospace	$	-	$	154	$	154
Energy, storage and transmission		3,791		25		3,816
Industrial		1,653		1,153		2,806
Research		827		516		1,343
Total	$	6,271	$	1,848	$	8,119

	Three months ended September 30, 2021
	Over time		Point in time		Total
Aerospace	$	-	$	574	$	574
Energy, storage and transmission		-		-		-
Industrial		1,551		1,205		2,756
Research		612		388		1,000
Total	$	2,163	$	2,167	$	4,330

	Nine months ended September 30, 2022
	Over time		Point in time		Total
Aerospace	$	-	$	1,375	$	1,375
Energy, storage and transmission		6,714		49		6,763
Industrial		4,099		3,197		7,296
Research		1,832		1,313		3,145
Total	$	12,645	$	5,934	$	18,579

	Nine months ended September 30, 2021
	Over time		Point in time		Total
Aerospace	$	386	$	1,677	$	2,063
Energy, storage and transmission		-		-		-
Industrial		4,147		3,173		7,320
Research		1,164		1,183		2,347
Total	$	5,697	$	6,033	$	11,730

Schedule Of Cost And Estimated Earnings In Excess Of Billings [Table Text Block]

	2022
Costs incurred on contracts in progress	$	11,921,048
Estimated earnings		8,530,639
		20,451,687
Billings to date		(18,548,776	)
		1,902,911
Deferred revenue related to non-system contracts		(228,336	)
	$	1,674,575
Included in accompanying condensed consolidated balance sheets under the following captions:
Contract assets	$	3,152,469
Contract liabilities	$	(1,477,894	)