Note 11 - Losses and LAE - Additional Disclosures: Cumulative Paid Claims / Reconciliation of Outstanding Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Reserve for losses and LAE	$ 848,413	$ 404,765
Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	2,914,640
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	3,636,200
Mortgage segment
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments	71,769	14,594	$ 11,009	$ 8,350
Short-duration Insurance Contracts, Liability for Unpaid Claims and Claims Adjustment Expense, Accumulated Unallocated Claim Adjustment Expense	20,521
Reserve for losses and LAE	844,107	401,273	397,891	507,588
Mortgage segment | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liability for Unpaid Claims and Claims Adjustment Expense, Net	751,817
Mortgage and Real Estate Services Segment
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Reserve for losses and LAE	4,306	3,492
Short-duration Insurance Contracts, Accident Year 2011 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	1,057,199	1,052,688	1,048,966	1,038,582	$ 1,016,855	$ 982,830	$ 892,959	$ 756,820	$ 323,216	$ 40,392
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	1,062,826	1,064,054	1,060,376	1,059,116	1,061,161	1,062,579	1,050,555	1,052,277	1,152,016	$ 1,058,625
Short-duration Insurance Contracts, Accident Year 2012 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	708,528	704,770	702,136	692,291	672,271	631,982	528,744	295,332	19,200
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	713,146	713,839	713,750	714,783	715,646	720,502	711,213	763,969	$ 803,831
Short-duration Insurance Contracts, Accident Year 2013 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	395,093	392,818	388,688	379,036	357,087	307,361	191,040	34,504
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	399,317	399,356	400,243	402,259	404,333	401,444	405,334	$ 505,732
Short-duration Insurance Contracts, Accident Year 2014 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	255,742	252,619	246,611	233,607	200,422	115,852	13,108
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	261,377	261,507	260,098	264,620	265,891	247,074	$ 337,784
Short-duration Insurance Contracts, Accident Year 2015 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	174,812	172,645	163,916	142,421	84,271	10,479
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	184,066	183,546	183,952	178,042	198,186	$ 222,555
Short-duration Insurance Contracts, Accident Year 2016 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	137,306	134,115	119,357	76,616	11,061
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	148,640	148,811	149,753	165,440	$ 201,016
Short-duration Insurance Contracts, Accident Year 2017 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	108,484	99,678	66,585	24,653
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	130,274	133,357	151,802	$ 180,851
Short-duration Insurance Contracts, Accident Year 2018 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	54,625	36,066	5,584
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	95,534	116,634	$ 131,513
Short-duration Insurance Contracts, Accident Year 2019 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	18,703	4,220
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	136,860	$ 143,475
Short-duration Insurance Contracts, Accident Year 2020 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	4,148
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	504,160
Short-duration Insurance Contracts, Accident Year Prior to 2011 | Property, Liability and Casualty Insurance Product Line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 30,257