CONDENSED CONSOLIDATED BALANCE SHEETS Parenthetical (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012
Shareholders' equity:
Preferred stock, no par value (in dollars per share)
Preferred stock, authorized (in shares)	10,000	10,000
Preferred Stock, Shares Issued
Preferred Stock, Shares Outstanding
Common stock, no par value (in dollars per share)
Common stock, authorized (in shares)	30,000	30,000
Common stock, issued (in shares)	12,004	11,992
Common stock, outstanding (in shares)	12,004	11,992