Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	Sep. 30, 2014	Mar. 31, 2014
Allowance for doubtful accounts (in Dollars)	$ 192,000	$ 150,000
Preferred stock par value (in Dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized	50,000	50,000
Common stock, par value (in Dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized	4,000,000	4,000,000
Common stock, shares issued	2,355,028	2,355,028
Common stock, shares outstanding	2,355,028	2,355,028