Note 2 - Acquisition (Details Textual) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Dec. 13, 2021	Jun. 30, 2022	Jun. 30, 2022
Goodwill, Purchase Accounting Adjustments			$ (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	960
Operating Lease, Liability, Total		960	960
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		6,591	13,027
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual		320	714
Business Acquisition, Amortization Expense		$ 182	364
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory			$ 55