Note 15 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Estimate of Fair Value Measurement [Member]
Note 15 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Impaired loans	$ 3,213	$ 5,203
REO, net		1,645
Fair Value, Inputs, Level 3 [Member]
Note 15 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Impaired loans	3,213	5,203
REO, net		$ 1,645