Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2012	Mar. 31, 2011
Consolidated Balance Sheets [Abstract]
Preferred stock, no par value
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares outstanding	0	0
Common stock, no par value
Common stock, stated value per share	$ 0.10	$ 0.10
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	16,138,000	13,325,000
Common stock, shares outstanding	16,138,000	13,325,000
Treasury stock, shares	70,000	69,000