Note 2 - Acquisition (Details Textual) - USD ($) $ in Thousands			3 Months Ended
		Dec. 13, 2021	Mar. 31, 2022
Goodwill, Purchase Accounting Adjustments	[1]		$ (30)
UEHC [Member]
Business Combination, Consideration Transferred, Total		$ 23,519
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles			40
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Liabilities			10
Goodwill, Purchase Accounting Adjustments			(30)
Operating Lease, Right-of-Use Asset			960
Operating Lease, Liability, Total			960
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual			6,436
Business Acquisition, Amortization Expense			182
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory			$ 55

[1] Change for measurement period adjustment related to Excell Acquisition (Note 2).