INCOME (LOSS) PER COMMON AND COMMON EQUIVALENT SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
INCOME (LOSS) PER COMMON AND COMMON EQUIVALENT SHARE
Common stock equivalents excluded from diluted earnings per share as their effect is anti-dilutive (in shares)	298,000	181,000	294,000	181,000
Basic:
Net income (loss)	$ (3,906)	$ 4,739	$ (2,452)	$ 9,604
Weighted average number of common shares outstanding - basic (in shares)	7,917,000	7,820,000	7,904,000	7,831,000
Net income (loss) per share - basic (in dollars per share)	$ (0.49)	$ 0.61	$ (0.31)	$ 1.23
Diluted:
Weighted average number of common shares outstanding - basic (in shares)	7,917,000	7,820,000	7,904,000	7,831,000
Assumed exercise of dilutive stock options and restricted stock units, using the treasury stock method (in shares)		31,000		35,000
Weighted average number of common and potential common shares (in shares)	7,917,000	7,851,000	7,904,000	7,866,000
Net income (loss) per share - diluted (in dollars per share)	$ (0.49)	$ 0.60	$ (0.31)	$ 1.22