INVESTMENT AND MORTGAGE-BACKED SECURITIES, Continuous Unrealized Loss Position (Details) $ in Thousands	Sep. 30, 2016 USD ($) Security	Dec. 31, 2015 USD ($)
Available-for-Sale Securities, Unrealized Losses [Abstract]
Number of TRUP securities not deemed having OTTI | Security	2
Number of TRUP securities deemed have OTTI | Security	5
Pooled Bank Trust Preferred Securities [Member]
Held-to-Maturity Securities, Fair Value [Abstract]
Less than 12 Consecutive Months	$ 0	$ 0
12 Consecutive Months or Longer	2,306	2,359
Total	2,306	2,359
Held-to-Maturity Securities, Unrealized Losses [Abstract]
Less than 12 Consecutive Months	0	0
12 Consecutive Months or Longer	429	345
Total	429	345
Registered Mutual Funds [Member]
Available-for-Sale Securities, Fair Value [Abstract]
Less than 12 Consecutive Months	0	3,026
12 Consecutive Months or Longer	1,823	0
Total	1,823	3,026
Available-for-Sale Securities, Unrealized Losses [Abstract]
Less than 12 Consecutive Months	0	259
12 Consecutive Months or Longer	122	0
Total	122	$ 259
Pass Through MBS Issued by GSEs [Member]
Available-for-Sale Securities, Fair Value [Abstract]
Less than 12 Consecutive Months	3,262
12 Consecutive Months or Longer	0
Total	3,262
Available-for-Sale Securities, Unrealized Losses [Abstract]
Less than 12 Consecutive Months	6
12 Consecutive Months or Longer	0
Total	$ 6