Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Mar. 31, 2011
Accounts receivable, less allowances (in Dollars)	$ 58	$ 56
Preferred stock par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000	5,000
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	75,000	75,000
Common stock, shares issued	45,396	44,025
Common stock, shares outstanding	45,396	44,025
Treasury stock shares	7	0