INVESTMENT AND MORTGAGE-BACKED SECURITIES, Major Categories of Securities Owned (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016 USD ($) Security		Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) Security		Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Investment securities held-to-maturity [Abstract]
Recorded amortized/historical cost	$ 5,319			$ 5,319			$ 5,242
Fair value	6,805			6,805			7,051
Available-for-sale securities [Abstract]
Fair value	3,837			3,837			3,756
Proceeds from the sales of trading securities	3,648			3,648		$ 1,337
Gross gains recognized on sale of trading securities	3			3
Gross losses recognized on sale of trading securites	$ 45			$ 45
Proceeds from sale of investment securities available-for-sale			$ 2,000			2,070
Gross gain recognized on sale of investment securities available for sale			4			4
Gross loss recognized on sale of investment securities available for sale			$ 8			$ 8
Number of TRUP securities deemed have OTTI | Security	5			5
Number of TRUP securities not deemed have OTTI | Security	2			2
Pooled Bank Trust Preferred Securities ("TRUPS") [Member]
Available-for-sale securities [Abstract]
Securities weighted average term to maturity	18 years 6 months
Registered Mutual Funds [Member]
Available-for-sale securities [Abstract]
Purchase amortized/historical cost	$ 4,011			$ 4,011			3,990
Recorded amortized/historical cost	4,011	[1]		4,011	[1]		3,990	[2]
Unrealized gains	20			20			25
Unrealized losses	(194)			(194)			(259)
Fair value	3,837			3,837			3,756
Pass Through MBS Issued by GSEs [Member]
Available-for-sale securities [Abstract]
Purchase amortized/historical cost	392			392			418
Recorded amortized/historical cost	392	[1]		392	[1]		418	[2]
Unrealized gains	14			14			13
Unrealized losses	0			0			0
Fair value	$ 406			406			431
All Mortgage Backed Securities available for sale [Member]
Available-for-sale securities [Abstract]
Securities weighted average term to maturity	11 years 6 months
Pooled Bank Trust Preferred Securities ("TRUPS") [Member]
Investment securities held-to-maturity [Abstract]
Purchase amortized/historical cost	$ 15,326			15,326			15,344
Recorded amortized/historical cost	5,319	[1]		5,319	[1]		5,242	[2]
Unrealized gains	1,955			1,955			2,154
Unrealized losses	(469)			(469)			(345)
Fair value	6,805			6,805			7,051
Unamortized portion of the unrealized loss amount recognized	$ 781			$ 781			$ 807

[1] Amount represents the purchase amortized / historical cost less any OTTI charges (credit or non-credit related) previously recognized. For the TRUPS, amount is also net of the $781 unamortized portion of the unrealized loss that was recognized in accumulated other comprehensive loss on September 1, 2008 (the day on which these securities were transferred from available-for-sale to held-to-maturity).

[2] Amount represents the purchase amortized/historical cost less any OTTI charges (credit or non-credit related) previously recognized. For the TRUPS, amount is also net of the $807 unamortized portion of the unrealized loss that was recognized in accumulated other comprehensive loss on September 1, 2008 (the day on which these securities were transferred from available-for-sale to held-to-maturity).