CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowances (in dollars)	$ 351	$ 255
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, Authorized shares	100,000	100,000
Preferred stock, Issued shares	0	0
Common stock, par value (in dollars per share)	$ 0.6666	$ 0.6666
Common stock, Authorized shares	20,000,000	20,000,000
Common stock, Issued shares	7,980,202	8,942,793
Common stock, outstanding shares	7,980,202	8,942,793