Annual report pursuant to Section 13 and 15(d)

4. Accounts Receivable (Details)

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4. Accounts Receivable (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Accounts Receivable Tables      
Accounts receivable $ 1,729 $ 2,203  
Less: allowance for doubtful accounts (22) (52) (62)
Net $ 1,707 $ 2,151