CONDENSED CONSOLIDATED BALANCE SHEETS Parenthetical (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2011	Apr. 02, 2011
Shareholders' equity:
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	10,000	10,000
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	30,000	30,000
Common stock, issued (in shares)	12,056	12,808
Common stock, outstanding (in shares)	12,056	12,808