Note 11 - Commitments and Contingencies (Details Textual) $ in Thousands		12 Months Ended
		Dec. 31, 2019 USD ($) ft²		Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Estimated Litigation Liability	[1]	$ 10,900		$ 0
Insurance Settlements Receivable	[2]	10,900		0
Operating Lease, Right-of-Use Asset	[3]	1,988		0
Operating Lease, Liability, Total	[4]	2,243	[5]	0
Short-term Lease, Cost		800
Sublease Income		$ 200
Operating Lease, Weighted Average Remaining Lease Term		1 year 10 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent		4.40%
Operating Leases, Rent Expense, Net, Total		$ 1,200		1,100	$ 1,100
Corporate Headquarters [Member]
Area of Real Estate Property | ft²		18,700
Divisional Offices [Member]
Area of Real Estate Property | ft²		19,000
Area of Real Estate Property, Sublet | ft²		7,700
Surety Bond [Member]
Loss Contingency, Range of Possible Loss, Portion Not Accrued		$ 47,600		50,500
Loss Contingency, Estimated Remaining Costs of Work to be Completed		29,100		20,300
Corporate Joint Venture [Member] | Loans Payable [Member]
Related Party Transaction, Guarantor Obligations Underlying Asset Class, Guaranteed		5,800		7,300
Corporate Joint Venture [Member] | Financial Guarantee [Member]
Long-term Debt, Gross		28,600		$ 41,300
Ordinary Course Litigation [Member]
Estimated Litigation Liability		5,900
IBNR Construction Defect Claims [Member]
Estimated Litigation Liability		$ 5,000

[1] During 2019, we recorded litigation reserves totaling $5.9 million related to ordinary course litigation which developed and became probable and estimable within the 2019 fourth quarter. Further, as a result of the development of the construction defect related claims within the litigation reserve and their impact to the Company's litigation reserve estimates for incurred but not reported ("IBNR") future construction defect claims, we recorded an additional $5.0 million of IBNR construction defect claim reserves resulting in aggregate litigation reserves totaling $10.9 million as of December 31, 2019. Because the self-insured retention deductibles had been met for each claim covered by the $5.9 million reserve, and the self-insured retention deductibles are expected to be met for the $5.0 million IBNR construction defect claim reserves, the Company recorded estimated insurance receivables of $10.9 million offsetting the litigation reserves as of December 31, 2019.

[2] The Company recorded insurance receivables of $10.9 million in connection with $10.9 million of litigation reserves recorded as of December 31, 2019. For more information, please refer to Note 8 .

[3] In conjunction with the adoption of ASC 842, the Company established a right-of-use asset of $3.1 million on January 1, 2019. For more information, please refer to Note 1 and Note 11.

[4] In conjunction with the adoption of ASC 842, the Company established a $3.5 million lease liability on January 1, 2019. For more information, please refer to Note 1 and Note 11.

[5] The weighted average remaining lease term and weighted average incremental borrowing rate used in calculating our lease liabilities were 1.9 years and 4.4%, respectively, at December 31, 2019.