Note 10 - Debt (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule Of Outstanding Letters Of Credit [Table Text Block]

		L/C	Lease	Letters of Credit Amount Outstanding
Facility	Original L/C Issue Date	Expiration Date	Expiration Date	Dec. 31 2020		Dec. 31 2019
Mt. Laurel, NJ	3/29/2010	4/30/2021	4/30/2031	$	90	$	90
Mansfield, MA	10/27/2010	12/31/2024	12/31/2024		50		50
				$	140	$	140