Note 4 - Revenue From Contracts With Customers (Details Textual) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Mar. 31, 2023
Revenue, Remaining Performance Obligation, Amount		$ 142.2
Delay Liquidated Damages, Capped, Percent	15.00%
Liquidated Damages, Contract Price Reduced Amount	$ 17.1
Catch-up Adjustment, Revenue Reduced Amount	$ 21.4

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-SubTopic 10
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

Name:	us-gaap_RevenueRemainingPerformanceObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant