Note 11 - Stockholders' Equity - Number of Restricted Stock Units Granted, Vested, Forfeited and Outstanding (Details) - Restricted Stock Units (RSUs) [Member]	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Outstanding (in shares) | shares	439,087
Outstanding, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 15.97
Granted (in shares) | shares	276,940
Granted, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 19.85
Vested (in shares) | shares	(66,919)	[1]
Vested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 19.39
Forfeited (in shares) | shares	0
Forfeited, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 0
Outstanding (in shares) | shares	649,108
Outstanding, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 17.28

[1] Certain key employees of the Manager elected to net the taxes owed upon vesting against the shares issued resulting in 67,992 shares being issued as shown on the consolidated statements of stockholders' equity.