Note 17 - Supplemental Guarantor Information - Supplemental Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 87,863	$ 79,314	$ 41,874
Restricted cash	424	117
Contracts and accounts receivable	15,637	15,982
Intercompany receivables	0	0
Due from Affiliates	108	238
Real estate inventories	398,973	433,938
Investment in and advances to unconsolidated joint ventures	29,237	30,217
Investment in subsidiaries	0	0
Deferred tax asset, net	16,589	17,503
Other assets	31,105	25,880
Total assets	579,936	603,189
Liabilities and equity
Accounts payable	21,038	25,044
Accrued expenses and other liabilities	36,083	40,554
Intercompany payables	0	0
Due to affiliates	0	0
Senior notes, net	300,479	304,832
Total liabilities	357,600	370,430
Total stockholders' equity	222,224	232,647
Non-controlling interest in subsidiary	112	112
Total equity	222,336	232,759	$ 237,079	$ 240,030
Total liabilities and equity	579,936	603,189
Consolidation, Eliminations [Member]
Assets
Cash and cash equivalents	0	0
Restricted cash	0	0
Contracts and accounts receivable	(888)	(424)
Intercompany receivables	(262,949)	(258,372)
Due from Affiliates	0	0
Real estate inventories	0	0
Investment in and advances to unconsolidated joint ventures	0	0
Investment in subsidiaries	(171,369)	(198,448)
Deferred tax asset, net	0	0
Other assets	0	0
Total assets	(435,206)	(457,244)
Liabilities and equity
Accounts payable	0	0
Accrued expenses and other liabilities	(877)	(421)
Intercompany payables	(262,949)	(258,372)
Due to affiliates	(11)	(3)
Senior notes, net	0	0
Total liabilities	(263,837)	(258,796)
Total stockholders' equity	(171,369)	(198,448)
Non-controlling interest in subsidiary	0	0
Total equity	(171,369)	(198,448)
Total liabilities and equity	(435,206)	(457,244)
Parent Company [Member]
Assets
Cash and cash equivalents	69,603	66,166
Restricted cash	0	0
Contracts and accounts receivable	11	3
Intercompany receivables	262,949	258,372
Due from Affiliates	0	0
Real estate inventories	0	0
Investment in and advances to unconsolidated joint ventures	0	0
Investment in subsidiaries	171,369	198,448
Deferred tax asset, net	16,060	17,003
Other assets	20,324	9,505
Total assets	540,316	549,497
Liabilities and equity
Accounts payable	47	68
Accrued expenses and other liabilities	17,566	11,950
Intercompany payables	0	0
Due to affiliates	0	0
Senior notes, net	300,479	304,832
Total liabilities	318,092	316,850
Total stockholders' equity	222,224	232,647
Non-controlling interest in subsidiary	0	0
Total equity	222,224	232,647
Total liabilities and equity	540,316	549,497
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	18,085	12,978
Restricted cash	424	117
Contracts and accounts receivable	16,514	16,403
Intercompany receivables	0	0
Due from Affiliates	108	238
Real estate inventories	398,973	433,938
Investment in and advances to unconsolidated joint ventures	29,237	30,217
Investment in subsidiaries	0	0
Deferred tax asset, net	529	500
Other assets	10,754	16,340
Total assets	474,624	510,731
Liabilities and equity
Accounts payable	20,991	24,973
Accrued expenses and other liabilities	19,368	28,999
Intercompany payables	262,949	258,372
Due to affiliates	11	3
Senior notes, net	0	0
Total liabilities	303,319	312,347
Total stockholders' equity	171,305	198,384
Non-controlling interest in subsidiary	0	0
Total equity	171,305	198,384
Total liabilities and equity	474,624	510,731
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	175	170
Restricted cash	0	0
Contracts and accounts receivable	0	0
Intercompany receivables	0	0
Due from Affiliates	0	0
Real estate inventories	0	0
Investment in and advances to unconsolidated joint ventures	0	0
Investment in subsidiaries	0	0
Deferred tax asset, net	0	0
Other assets	27	35
Total assets	202	205
Liabilities and equity
Accounts payable	0	3
Accrued expenses and other liabilities	26	26
Intercompany payables	0	0
Due to affiliates	0	0
Senior notes, net	0	0
Total liabilities	26	29
Total stockholders' equity	64	64
Non-controlling interest in subsidiary	112	112
Total equity	176	176
Total liabilities and equity	$ 202	$ 205