Consolidated Balance Sheets (unaudited) (Parenthetical) (USD $)	Jun. 30, 2012	Mar. 31, 2012
Current assets:
Reserve for returns, allowances and provision for doubtful accounts	$ 5,347,000	$ 6,405,000
Stockholders' equity:
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	256,402,000	256,402,000
Common stock, shares outstanding (in shares)	256,402,000	256,402,000
Series B Cumulative Preferred Stock [Member]
Preferred Stock:
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	30,000	30,000
Preferred stock, shares issued (in shares)	22,600	22,600
Preferred stock, shares outstanding (in shares)	22,600	22,600
Preferred stock, liquidation preference	$ 30,300,000	$ 29,400,000
Series C Junior Participating Preferred Stock [Member]
Preferred Stock:
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	67,933.4	67,933.4
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0