Note 2 - Summary of Significant Accounting Policies (Detail)	6 Months Ended
	Jun. 30, 2016 Approach
Summary of Significant Accounting Policies Details [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	72.50%
Estimating Real Property Value, Number of Approaches	3
Cash and Cash Equivalents, Maximum Initial Maturity	3 months
Interest Reserve Minimum Length	1 year
Interest Reserve Maximum Length	2 years
Maximum [Member]
Summary of Significant Accounting Policies Details [Line Items]
Residential Lease Term	1 year