Statements of Income (Unaudited) (Parentheticals)	Mar. 31, 2013	Mar. 31, 2012
Per Common Share (in Shares)	1,942,495	1,942,495

Total number of shares of other common stock instruments held by shareholders, such as exchangeable shares. May be all or portion of the number of common shares authorized.

No definition available.

Name:	us-gaap_CommonStockOtherSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant