Note 5 - Line of Credit (Details) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Debt Disclosure [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	$ 3,000,000		$ 3,000,000
Line of Credit Facility, Interest Rate During Period			4.00%
Line of Credit Facility, Amount Outstanding	0	0	0	0
Line of Credit Facility, Periodic Payment, Interest	$ 0	$ 0	$ 1,752	$ 0