Note 14 - Employee Benefits (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Note 14 - Employee Benefits (Details) [Line Items]
Pension and Other Postretirement Benefit Contributions	$ 287,000	$ 278,000
General and Administrative Expense	12,843,507	11,303,067
Deferred Profit Sharing [Member]
Note 14 - Employee Benefits (Details) [Line Items]
General and Administrative Expense	$ 500,000	$ 385,000