Note 15 - Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

($ in thousands)	2020			2019
Interest paid	$	151		$	120
Federal, state, and local income taxes paid, net	$	4,669		$	5,327
Change in contract receivables, net	$	(424	)	$	(2,144	)
Change in contract liabilities, net	$	836		$	2,144
Property, plant, and equipment purchases in accounts payable	$	2,316		$	2,460