Condensed Consolidated Balance Sheets (Parentheticals) (USD $)	Jun. 30, 2011	Mar. 31, 2011
Allowance for doubtful accounts (in Dollars)	$ 41,000	$ 40,000
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	2,446,286	2,431,286
Common stock, shares outstanding	2,446,286	2,431,286