INVESTMENT AND MORTGAGE-BACKED SECURITIES, Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Registered Mutual Funds [Member]
Available-for-Sale Securities, Fair Value [Abstract]
Less than 12 Months Consecutive Unrealized Losses	$ 2,479	$ 3,026
12 Months or More Consecutive Unrealized Losses	970	0
Total	3,449	3,026
Available-for-Sale Securities, Gross Unrecognized/Unrealized Losses [Abstract]
Less than 12 Months Consecutive Unrealized Losses	108	259
12 Months or More Consecutive Unrealized Losses	126	0
Total	234	259
Pooled Bank Trust Preferred Securities ("TRUPS") [Member]
Held-to-Maturity Securities, Fair Value [Abstract]
Less than 12 Months Consecutive Unrealized Losses	0	0
12 Months or More Consecutive Unrealized Losses	2,715	2,359
Total	2,715	2,359
Held-to-Maturity Securities, Gross Unrecognized/Unrealized Losses [Abstract]
Less than 12 Months Consecutive Unrealized Losses	0	0
12 Months or More Consecutive Unrealized Losses	426	345
Total	$ 426	$ 345