Note 9 - Equity (Details) $ / shares in Units, $ in Thousands	1 Months Ended		12 Months Ended
	Dec. 31, 2021 USD ($) employee $ / shares shares	Aug. 31, 2016 employee $ / shares shares	Dec. 31, 2021 USD ($) employee $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
EQUITY
Shares available for grant | shares	1,900,000		1,900,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Options outstanding, intrinsic value | $	$ 7,700		$ 7,700
Common stock, shares authorized (in shares) | shares	260,000,000		260,000,000	260,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01		$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares) | shares	50,000,000		50,000,000	50,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.01		$ 0.01	$ 0.01
Fair value of awards | $			$ 5,100	$ 1,500
Quarterly Dividend | $	$ 2,500
Dividend payable | $	$ 2,501		2,501
Options
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Option exercise price (per share) | $ / shares		$ 5.34
Expiration period		10 years
Number of individuals | employee		2
Noncash Transaction, Conversion of Common Unit Options, Number of Common Stock Options | shares		937,424
Restricted Stock
EQUITY
Shares available for grant | shares				22,000
Compensation costs | $			$ 5,300	$ 4,100	$ 4,100
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Number of Executives | employee	14		14
Vesting period			6 months
Outstanding, Weighted average grant date fair value (in dollars per share) | $ / shares	$ 3.98		$ 3.98	$ 4.28	$ 6.32
Unrecognized compensation cost | $	$ 7,200		$ 7,200
Weighted-average period for recognition			1 year 7 months 6 days
Outstanding, shares (in shares) | shares	3,741,770		3,741,770	2,845,525	1,628,241
Incremental compensation costs associated with modifications | $			$ 800
Restricted Stock | Executives and Employees
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding, shares (in shares) | shares				1,400,000
Restricted Stock | Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Vesting period			1 year
Restricted Stock | Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Vesting period			3 years 6 months