Note 12 - Supplemental Cash Flow Information

3 Months Ended

Mar. 31, 2021

Notes to Financial Statements

Cash Flow, Supplemental Disclosures [Text Block]

12. SUPPLEMENTAL CASH FLOW INFORMATION

Supplemental cash flow information for the three months ended March 31, 2021 and 2020 was as follows:

($ in thousands)	2021			2020
Interest paid	$	20		$	19
Federal, state, and local income taxes paid, net	$	4		$	-
Change in contract receivables, net	$	2,999		$	2,195
Change in contract liabilities, net	$	(2,655	)	$	(2,195	)
Property, plant, and equipment purchases in accounts payable	$	1,668		$	1,308