Note 14 - Discontinued Operations (Details Textual) $ in Millions	Dec. 31, 2022 USD ($)
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] \| Assets Acquired in The Dental Power Agreement [Member] \| Customer Lists [Member]
Disposal Group, Including Discontinued Operation, Intangible Assets	$ 3.1

Amount classified as intangible assets, excluding goodwill, attributable to disposal group held for sale or disposed of.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 11
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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-Section 50
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
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-URI https://asc.fasb.org/extlink&oid=109222160&loc=d3e1107-107759

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
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-URI https://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230

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Period Type:	instant