CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)	Sep. 30, 2011	Mar. 31, 2011
Shareholders; equity:
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Common stock, shares authorized (in shares)	95,000,000	95,000,000
Common stock, shares issued (in shares)	14,636,365	15,711,365
Common stock, shares outstanding (in shares)	14,636,365	15,711,365