CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Mar. 31, 2011
CONDENSED CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 52	$ 58
Common stock, par value (in dollars per share)	$ 0.02	$ 0.02
Common stock, shares authorized	7,500,000	7,500,000
Common stock, shares issued	5,434,598	5,391,968
Common stock, shares outstanding	5,434,598	5,391,968