CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Jun. 30, 2011	Mar. 31, 2011
Allowance for doubtful accounts	$ 169,765	$ 175,804
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	37,835,793	37,835,793
Common stock, shares outstanding	37,835,793	37,835,793
Common stock Class A
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0