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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Note 21 - Stock Based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended			22 Months Ended
	May 18, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	May 23, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		450,000	0	45,360
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 6.83		$ 3.74
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value		$ 1,900	$ 2,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		364,418	380,786	0
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options		$ 2,300
Share Price	$ 25.09
Employee Stock Option [Member]
Allocated Share-based Compensation Expense, Total		1,200	$ 500	$ 5,600
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense		$ 200	200	2,100
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		2 years 146 days
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options		$ 400	1,000	0
Employee Stock Option [Member] \| Equity Incentive Plan 2011 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Nonqualified Stock Option [Member] \| Equity Incentive Plan 2011 [Member] \| Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	1,134,000
Nonqualified Stock Option [Member] \| Equity Incentive Plan 2011 [Member] \| CEO and COO [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 4.96
Allocated Share-based Compensation Expense, Total	$ 11,200
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Sharebased Compensation Arrangement by Sharebased Payment Award Expected to Vest Immediately Threshold Trading Days	20 days
Sharebased Compensation Arrangement by Sharebased Payment Award Expected to Vest Immediately threshold Consecutive Trading Days	30 days
Sharebased Compensation Arrangement by Sharebased Payment Award Expected to Vest Immediately Threshold Percentage of Stock Price Trigger	120.00%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date	May 18, 2025
Nonqualified Stock Option [Member] \| Equity Incentive Plan 2011 [Member] \| CEO and COO [Member] \| Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	33.33%
Nonqualified Stock Option [Member] \| Equity Incentive Plan 2011 [Member] \| CEO and COO [Member] \| Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	33.33%
Nonqualified Stock Option [Member] \| Equity Incentive Plan 2011 [Member] \| CEO and COO [Member] \| Share-based Compensation Award, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	33.33%
Nonqualified Stock Option [Member] \| Equity Incentive Plan 2011 [Member] \| Chief Operating Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	1,134,000
Restricted Stock [Member]
Allocated Share-based Compensation Expense, Total		$ 3,600	2,600	1,900
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense		800	$ 1,000	700
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total			$ 4,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested		8,700
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested		3,200	1,400	1,300
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| Granted in 2016 [Member]
Allocated Share-based Compensation Expense, Total		6,300	$ 2,700	$ 0
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| Granted In 2017 [Member]
Allocated Share-based Compensation Expense, Total		3,000
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| Granted In 2017 [Member] \| Expense Related to the Probable Achievement of the Threshold Goal [Member]
Allocated Share-based Compensation Expense, Total		2,200
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| Granted In 2017 [Member] \| Expense Related to Proportional Adjustment to the Partial Performance Between the Threshold Goal and Target Goal [Member]
Allocated Share-based Compensation Expense, Total		800
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| Granted in 2018 [Member]
Allocated Share-based Compensation Expense, Total		$ 0
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					3 years
Share-based Compensation Arrangement by Share-based Payment Award, Average Gross Margin of Home Sales, Percentage, Minimum					15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues					10.00%
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues					20.00%
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| 5% to 10% Vesting Threshold [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Target Goal Number of Shares					50.00%
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| 5% to 10% Vesting Threshold [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues					5.00%
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| 5% to 10% Vesting Threshold [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues					10.00%
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| 20% Vesting Threshold [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Performance Revenues that Exceed Base Revenues					20.00%
Performance Shares [Member] \| Equity Incentive Plan 2011 [Member] \| 20% Vesting Threshold [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Target Goal Number of Shares					200.00%
Black-scholes Model [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 6.83		$ 3.74