Note 22 - Equity-based Compensation - Service based Vesting (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2020	Dec. 31, 2018	Dec. 31, 2017
Balance, number of options (in shares)		19,286	319,286
Balance, weighted average exercise price (in dollars per share)			$ 40	$ 40		$ 40	$ 40
Balance, weighted average grant date fair value (in dollars per share)						$ 7	$ 7
Balance, weighted average remaining contractual term (Year)			36 days	328 days
Granted, number of options (in shares)
Granted, weighted average exercise price (in dollars per share)
Granted, weighted average grant date fair value (in dollars per share)
Exercised, number of options (in shares)
Exercised, weighted average exercise price (in dollars per share)
Forfeited, number of options (in shares)		(19,286)	(300,000)
Forfeited, weighted average exercise price (in dollars per share)		$ 40	$ 40
Forfeited, weighted average grant date fair value (in dollars per share)		7	7
Balance, weighted average exercise price (in dollars per share)			$ 40	$ 40
Balance, number of options (in shares)			19,286	319,286