Note 12 - Deposits (Details Textual) - USD ($)	Mar. 31, 2018	Mar. 31, 2017
Time Deposits, $100,000 or More, Total	$ 20,633,911	$ 21,594,387

Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher SEC
-Name Industry Guide
-Number 3
-Section V
-Paragraph D-E