Consolidated Statements of Changes in Stockholders' Equity (Parentheticals)	12 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Dividends on Preferred Stock	8.00%	8.00%

The percentage rate used to calculate dividend payments on preferred stock.

No definition available.

Name:	us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration