Note 6 - Loans Receivable and Allowance for Loan Losses (Details Textual)	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Maximum Percentage of Value of Property Against Lending		90.00%		90.00%
Limit Over Which Private Mortgage Insurance is Required		80.00%		80.00%
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		0	0	0	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts Sold	11