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UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
shares in Thousands
Sep. 30, 2018
Mar. 31, 2018
STOCKHOLDERS' EQUITY    
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized (in shares) 2,000 2,000
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 25,000 25,000
Common stock, shares outstanding (in shares) 13,727 13,761
Treasury stock, shares (in shares) 578 467