Condensed Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data	Sep. 30, 2011	Mar. 31, 2011
Preferred Class A [Member]
Stockholders' Equity:
Preferred stock, shares authorized	15,000,000	15,000,000
Series A Preferred Stock [Member]
Stockholders' Equity:
Preferred stock, shares authorized	20	20
Series A 10% Preferred stock, par value	0.001	0.001
Series A 10% Preferred stock, shares issued	7	7
Series A 10% Preferred stock, shares outstanding	7	7
Series A 10% Preferred stock, liquidation preference	3,559	3,698
Common Class A [Member]
Stockholders' Equity:
Class A Common stock, shares authorized	75,000,000	75,000,000
Class A Common stock, par value	0.001	0.001
Class A Common stock, shares issued	37,644,164	32,320,287
Class A Common stock, shares outstanding	37,592,724	32,268,847
Treasury stock, Class A shares	51,440	51,440
Common Class B [Member]
Stockholders' Equity:
Class A Common stock, shares authorized	15,000,000	15,000,000
Class A Common stock, par value	0.001	0.001
Class A Common stock, shares issued	25,000	25,000
Class A Common stock, shares outstanding	25,000	25,000