Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2012	Mar. 31, 2012
Condensed Consolidated Balance Sheets [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	6,684,823	6,689,009
Common stock, shares outstanding	6,680,938	6,685,124
Treasury stock, shares	3,885	3,885