Note 4 - Loans - Secured Loans Past Maturity (Detail) $ in Thousands		Sep. 30, 2016 USD ($) Loan MortgageLoan	Dec. 31, 2015 USD ($) MortgageLoan	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of loans | Loan		2
Principal		$ 83,385	$ 62,740	$ 46,721	$ 71,017
Advances		61	51
Accrued interest		614	372
Loans, net		$ 84,113	$ 63,232
Percent of total secured loan balance		100.00%	100.00%
Past Maturity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Number of loans | MortgageLoan	[1]	2	1
Principal		$ 236	$ 4,000
Advances		47
Accrued interest		48	85
Loans, net		$ 331	$ 4,085
Percent of total secured loan balance		1.00%	6.00%

[1] At September 30, 2016 there were two loans past maturity. Both loans were in the process of negotiating an extension agreement, and neither loan was designated impaired. At December 31, 2015, there was one loan past maturity, for which RMI 8 received all sums due per the note terms in September, 2016.