INVESTMENT SECURITIES - Contractual Final Maturity Distribution of Debt Securities Classified as Available for Sale and Held to Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Available for Sale, Fair Value
Within One Year	$ 101
After One But Within Five Years	96,687
After Five But Within Ten Years	11,679
Securities not due at a Single Maturity	171,611
Total	280,078
Available for Sale, Amortized Cost
Within One Year	101
After One But Within Five Years	95,099
After Five But Within Ten Years	11,196
Securities not due at a Single Maturity	168,018
Total	274,414
Held to Maturity, Fair Value
After Five But Within Ten Years	15,002
After Ten Years	19,935
Securities not due at a Single Maturity	79,654
Total	114,591	$ 120,093
Held to Maturity, Amortized Cost
After Five But Within Ten Years	14,362
After Ten Years	18,964
Securities not due at a Single Maturity	77,744
Total	111,070	119,674
U.S. Treasury Obligations
Available for Sale, Fair Value
Within One Year	101
After One But Within Five Years	25,324
Total	25,425
Available for Sale, Amortized Cost
Within One Year	101
After One But Within Five Years	24,971
Total	25,072
U.S. Agency Obligations
Held to Maturity, Fair Value
After Ten Years	19,935
Total	19,935	20,570
Held to Maturity, Amortized Cost
After Ten Years	18,964
Total	18,964	20,084
U.S. GSEs
Available for Sale, Fair Value
After One But Within Five Years	41,950
Total	41,950
Available for Sale, Amortized Cost
After One But Within Five Years	41,246
Total	41,246
Held to Maturity, Fair Value
After Five But Within Ten Years	10,001
Total	10,001	9,722
Held to Maturity, Amortized Cost
After Five But Within Ten Years	9,585
Total	9,585	9,556
FHLB Obligations
Available for Sale, Fair Value
After One But Within Five Years	29,413
After Five But Within Ten Years	11,679
Total	41,092
Available for Sale, Amortized Cost
After One But Within Five Years	28,882
After Five But Within Ten Years	11,196
Total	40,078
Held to Maturity, Fair Value
After Five But Within Ten Years	5,001
Total	5,001	4,834
Held to Maturity, Amortized Cost
After Five But Within Ten Years	4,777
Total	4,777	4,758
Agency MBSs
Available for Sale, Fair Value
Securities not due at a Single Maturity	88,171
Total	88,171
Available for Sale, Amortized Cost
Securities not due at a Single Maturity	85,668
Total	85,668
Held to Maturity, Fair Value
Securities not due at a Single Maturity	6,834
Total	6,834	7,181
Held to Maturity, Amortized Cost
Securities not due at a Single Maturity	6,516
Total	6,516	7,027
Agency CMBSs
Available for Sale, Fair Value
Securities not due at a Single Maturity	24,708
Total	24,708
Available for Sale, Amortized Cost
Securities not due at a Single Maturity	24,342
Total	24,342
Agency CMOs
Available for Sale, Fair Value
Securities not due at a Single Maturity	58,394
Total	58,394
Available for Sale, Amortized Cost
Securities not due at a Single Maturity	57,707
Total	57,707
Held to Maturity, Fair Value
Securities not due at a Single Maturity	72,820
Total	72,820	77,786
Held to Maturity, Amortized Cost
Securities not due at a Single Maturity	71,228
Total	71,228	$ 78,249
ABSs
Available for Sale, Fair Value
Securities not due at a Single Maturity	338
Total	338
Available for Sale, Amortized Cost
Securities not due at a Single Maturity	301
Total	$ 301