Note 14 - Investment in Equity-accounted Investees (Details Textual) - USD ($) $ in Thousands		9 Months Ended
	Feb. 25, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Payments to Acquire Equity Method Investments		$ 25,000	$ (0)
CSP Management Limited [Member]
Payments to Acquire Call Options	$ 5,000
CSS Corp. [Member]
Payments to Acquire Equity Method Investments	$ 25,000
Equity Method Investment, Ownership Percentage	26.00%
CSS Corp LP [Member]
Payments to Acquire Equity Method Investments	$ 25,000
Equity Method Investment, Ownership Percentage	62.50%	61.35%		0.00%
Queensland Partnership Group Pty. Ltd. [Member]
Equity Method Investment, Ownership Percentage		33.33%
Services Queensland Partnership [Member]
Equity Method Investment, Ownership Percentage		16.67%