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CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)
In Thousands, except Per Share data
Sep. 30, 2011
Mar. 31, 2011
Statement Of Financial Position [Abstract]  
Allowance for Doubtful Accounts Receivable (in dollars)$ 4$ 6
Preferred stock, par value (in dollars per share)$ 0.001$ 0.001
Preferred stock, shares authorized5,0005,000
Convertible Preferred stock, shares issued33
Convertible Preferred stock, shares outstanding33
Preferred stock, liquidation preference (in dollars per share)$ 4$ 4
Common stock, par value (in dollars per share)$ 0.001$ 0.001
Common stock, shares authorized40,00040,000
Common stock, shares issued20,55622,331
Common stock, shares outstanding20,55622,331