Note 7 - Inventories (Details) - Summary of Inventory Impairments, by Segment (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Housing Completed or Under Construction:
Inventory Impairments	$ 1,760	$ 919	$ 1,105
Housing Completed Or Under Construction [Member] | Mountain [Member]
Housing Completed or Under Construction:
Inventory Impairments	234
Housing Completed Or Under Construction [Member] | East [Member]
Housing Completed or Under Construction:
Inventory Impairments	1,000	802	295
Housing Completed Or Under Construction [Member]
Housing Completed or Under Construction:
Inventory Impairments	1,234	802	295
Land And Land Under Development [Member] | Mountain [Member]
Housing Completed or Under Construction:
Inventory Impairments	526
Land And Land Under Development [Member] | East [Member]
Housing Completed or Under Construction:
Inventory Impairments		117	810
Land And Land Under Development [Member]
Housing Completed or Under Construction:
Inventory Impairments	$ 526	$ 117	$ 810