Note 14 - Shareholders' Equity (Details Textual) - $ / shares	Oct. 13, 2022	Sep. 30, 2022	Dec. 31, 2021
Common Stock, Shares Authorized (in shares)		100,000,000	100,000,000
Preferred Stock, Shares Authorized (in shares)		500,000	500,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share)		$ 25	$ 25
Preferred Stock, Shares Issued (in shares)		0	0
Preferred Stock, Shares Outstanding, Ending Balance (in shares)		0	0
Subsequent Event [Member]
Common Stock, Shares Authorized (in shares)	160,000,000
Subsequent Event [Member] | TransGlobe [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	49,300,000