Credit Facility - Summary of activity on the Bank of America, N.A. line of credit (Details) (USD $)	6 Months Ended
Sep. 30, 2014
Notes to Financial Statements
Balance at beginning of period:	$ 2,425,000
Borrowings	325,000
Repayments	(150,000)
Balance at end of period:	$ 2,600,000

Increase for additional borrowings on the credit facility during the period.

No definition available.

Name:	us-gaap_LineOfCreditFacilityIncreaseAdditionalBorrowings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration