Unaudited Condensed Consolidated Balance Sheets Parentheticals (USD $) In Thousands, except Share data	Jun. 30, 2011	Mar. 31, 2011
Current Assets:
Allowance for doubtful accounts	$ 11	$ 11
Stockholders' Equity:
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	28,123,556	28,101,991
Common stock, shares outstanding	28,123,556	28,101,991
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0