Note 5 - Credit Facilities and Other Debt - Unused Availability (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Unused Availability	$ 3,553	$ 6,674
UNITED STATES
Unused Availability	2,540	5,319
AUSTRALIA
Unused Availability	477	455
CHINA
Unused Availability	158	157
MEXICO
Unused Availability	$ 378	$ 743

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant