INVESTMENT AND MORTGAGE RELATED SECURITIES (Details 2) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013 security	Dec. 31, 2012 security
INVESTMENT AND MORTGAGE RELATED SECURITIES
Net unrealized loss	$ 1,503,000	$ 186,000
Amortized Cost	311,308,000	289,087,000
Net unrealized gain	5,464,000	7,206,000
Fair Value of securities impaired greater than twelve months	2,951,000	2,879,000
Mortgage related securities
INVESTMENT AND MORTGAGE RELATED SECURITIES
Number of securities sold	3
Amortized cost of securities sold	6,500,000
Recognized gains (losses)	361,000
Net unrealized loss	1,454,000	65,000
Amortized Cost	298,826,000	276,580,000
Net unrealized gain	5,355,000	7,101,000
Corporate securities
INVESTMENT AND MORTGAGE RELATED SECURITIES
Net unrealized loss	49,000	121,000
Amortized Cost	12,182,000	12,207,000
Net unrealized gain	96,000	91,000
Fair Value of securities impaired greater than twelve months	2,951,000	2,879,000
Corporate securities | Baa2
INVESTMENT AND MORTGAGE RELATED SECURITIES
Net unrealized loss	49,000
Fair Value of securities impaired greater than twelve months	3,000,000
Private label commercial mortgage related securities
INVESTMENT AND MORTGAGE RELATED SECURITIES
Amortized Cost	4,630,000	6,119,000
Number of securities held	3	3
Net unrealized gain	$ 49,000	$ 78,000