SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Common Stock Repurchases and Common Stock Dividend) (Details) (USD $)	1 Months Ended			3 Months Ended					1 Months Ended
	Oct. 31, 2013	Jan. 31, 2013 quarters	Jan. 31, 2012 quarters	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Oct. 31, 2012 Common Stock [Member]	Apr. 30, 2014 Subsequent Event [Member]
Class of Stock [Line Items]
Stock repurchase program authorized amount									$ 50,000,000
Remaining authorized repurchase amount				29,500,000
Dividends declared (per share)	$ 0.10	$ 0.08								$ 0.12
Number of shares repurchased				0
Dividends declared, number of quarters		4	4
Payments of dividends (per share)				$ 0.1	$ 0.08	$ 0.08	$ 0.08	$ 0.08
Common stock dividends declared for second quarter of fiscal year 2014 (per share)				$ 0.1
Common stock dividends declared for third quarter of fiscal year 2014 (per share)				$ 0.12
Common stock dividends declared for fourth quarter of fiscal year 2014 (per share)				$ 0.12
Payments of dividends				$ 3,033,000	$ 2,400,000	$ 2,400,000	$ 2,300,000	$ 2,310,000