EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Weighted average number diluted shares outstanding adjustment [Abstract]
Weighted average decrease in the effect of dilutive shares (in shares)		107,000
Decrease in basic earnings per share (in dollars per shares)		$ 0.03
Decrease in diluted earnings per share (in dollars per shares)		$ 0.02
Restricted stock awards that contain non-forfeitable rights to dividends (in shares)	82,000
Basic and Diluted Shares Outstanding [Abstract]
Weighted average shares outstanding-basic (in shares)	7,913,937	7,720,535
Effect of dilutive shares (in shares)	71,000	70,000
Weighted average shares outstanding-diluted (in shares)	7,984,681	7,790,811
Calculation of Earnings Per Share - Basic [Abstract]
Net earnings	$ 7,850	$ 8,062
Net earnings attributable to shareholders with participating rights	123	255
Net earnings attributable to common share holders	7,727	7,807
Basic (in dollars per share)	$ 0.98	$ 1.01
Calculation of Earnings Per Share - Diluted [Abstract]
Net earnings attributable to common share holders	7,727	7,807
Add: undistributed earnings attributable to participating securities	0	2
Net earnings attributable to common shareholders	$ 7,727	$ 7,809
Diluted (in dollars per share)	$ 0.97	$ 1.00