Note 2 - Acquisition (Details Textual) - USD ($) $ in Thousands		12 Months Ended
Dec. 13, 2021	Dec. 31, 2021	Dec. 31, 2020
Revenues, Total		$ 98,267	$ 107,712
UEHC [Member]
Business Combination, Consideration Transferred, Total	$ 23,519
Operating Lease, Right-of-Use Asset		960
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		1,131
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual		128
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory		121
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles		30
Business Combination, Acquisition Related Costs		$ 354
UEHC [Member] \| Fair Value Adjustment to Inventory [Member]
Revenues, Total			$ 950

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to intangibles acquired in connection with a business combination for which the initial accounting was incomplete.

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This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to inventory acquired in connection with a business combination for which the initial accounting was incomplete.

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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