v3.23.1

Note 5 - Fair Value Measurements - Fair Value Measurements (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets, fair value	$ 59	$ 64
Guaranteed Investment Certificates [Member]
Assets, fair value	59	64
Fair Value, Inputs, Level 1 [Member]
Assets, fair value	0	0
Fair Value, Inputs, Level 1 [Member] | Guaranteed Investment Certificates [Member]
Assets, fair value	0	0
Fair Value, Inputs, Level 2 [Member]
Assets, fair value	59	64
Fair Value, Inputs, Level 2 [Member] | Guaranteed Investment Certificates [Member]
Assets, fair value	59	64
Fair Value, Inputs, Level 3 [Member]
Assets, fair value	0	0
Fair Value, Inputs, Level 3 [Member] | Guaranteed Investment Certificates [Member]
Assets, fair value	$ 0	$ 0

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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