Condensed Consolidated Balance Sheets (Parentheticals) (USD $)	Sep. 30, 2011	Mar. 31, 2011
Allowance for doubtful accounts (in Dollars)	$ 317,000	$ 317,000
Treasury stock at cost, shares	53,208	37,970
Redeemable Convertible Preferred Stock [Member]
Redeemable Series D Convertible Participating Preferred Stock, Redemption and Liquidation Value (in Dollars per share)	$ 3,167,945	$ 3,167,945
Preferred Stock, par value (in Dollars per share)	$ 1.00	$ 1.00
Preferred Stock, authorized shares	2,500,000	2,500,000
Preferred Stock, issued	2,500,000	2,500,000
Preferred Stock, outstanding	2,500,000	2,500,000
Preferred Class A [Member]
Preferred Stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Preferred Stock, authorized shares	650,000	650,000
Preferred Stock, issued	0	0
Preferred Stock, outstanding	0	0
Preferred Class B [Member]
Preferred Stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Preferred Stock, authorized shares	700,000	700,000
Preferred Stock, issued	0	0
Preferred Stock, outstanding	0	0
Preferred Stock [Member]
Preferred Stock, authorized shares	3,650,000	3,650,000
Preferred Stock, issued	0	0
Preferred Stock, outstanding	0	0
Common stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, authorized shares	25,000,000	25,000,000
Common stock, shares issued	8,838,815	8,590,315
Common stock, shares outstanding	8,785,607	8,552,345