INVESTMENT SECURITIES - AMORTIZED COST AND FV (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2008
Securities available for Sale - Amortized Cost
Due in one year or less	$ 35,987,000		$ 35,987,000
Due from one year to five years	239,376,000		239,376,000
Due from five years to ten years	10,000,000		10,000,000
Due beyond ten years	3,471,000		3,471,000
Total securities	461,792,000		461,792,000
Securities available for Sale - Fair Value
Due in one year or less	35,989,000		35,989,000
Due from one year to five years	238,626,000		238,626,000
Due from five years to ten years	10,241,000		10,241,000
Due beyond ten years	3,454,000		3,454,000
Total securities	464,525,000		464,525,000
Securities held to maturity - Carrying Value
Due in one year or less	501,000		501,000
Due from one year to five years	10,111,000		10,111,000
Due from five years to ten years	25,042,000		25,042,000
Total securities	61,159,000		61,159,000		$ 52,864,000
Securities held to maturity - Fair Value
Due in one year or less	501,000		501,000
Due from one year to five years	10,048,000		10,048,000
Due from five years to ten years	25,388,000		25,388,000
Total securities	$ 61,594,000		$ 61,594,000		$ 53,249,000
Number of Securities Held	181		181		179
Securities available for sale	$ 464,525,000		$ 464,525,000		$ 481,275,000
Total unrealized gain	423,000	$ 416,000	1,129,000	$ 2,708,000
Private label mortgage backed security
Securities available for Sale - Amortized Cost
Securities not due at a single maturity date	3,300,000		3,300,000
Securities available for Sale - Fair Value
Securities not due at a single maturity date	4,540,000		4,540,000
Securities held to maturity - Carrying Value
Securities not due at a single maturity date	$ 4,500,000		$ 4,500,000
Securities held to maturity - Fair Value
Number of Securities Held	1		1
Securities available for sale	$ 4,540,000		$ 4,540,000		4,777,000
Mortgage backed securities - residential
Securities available for Sale - Amortized Cost
Securities not due at a single maturity date	88,776,000		88,776,000
Securities available for Sale - Fair Value
Securities not due at a single maturity date	90,455,000		90,455,000
Securities held to maturity - Carrying Value
Securities not due at a single maturity date	155,000		155,000
Total securities	155,000		155,000		158,000
Securities held to maturity - Fair Value
Securities not due at a single maturity date	166,000		166,000
Total securities	166,000		166,000		170,000
Securities available for sale	90,455,000		90,455,000		73,004,000
Collateralized mortgage obligations
Securities available for Sale - Amortized Cost
Securities not due at a single maturity date	78,382,000		78,382,000
Securities available for Sale - Fair Value
Securities not due at a single maturity date	78,404,000		78,404,000
Securities held to maturity - Carrying Value
Securities not due at a single maturity date	25,350,000		25,350,000
Total securities	25,350,000		25,350,000		27,142,000
Securities held to maturity - Fair Value
Securities not due at a single maturity date	25,491,000		25,491,000
Total securities	25,491,000		25,491,000		27,268,000
Securities available for sale	78,404,000		78,404,000		87,654,000
Freddie Mac preferred stock
Securities available for Sale - Fair Value
Securities not due at a single maturity date	337,000		337,000
Securities held to maturity - Fair Value
Number of Securities Held						40,000
Other Than Temporary Impairment ("OTTI") charge						$ 2,100,000
Securities available for sale	337,000		337,000		483,000	$ 0
Total unrealized gain			337,000
Community Reinvestment Act mutual fund
Securities available for Sale - Amortized Cost
Securities not due at a single maturity date	2,500,000		2,500,000
Securities available for Sale - Fair Value
Securities not due at a single maturity date	2,479,000		2,479,000
Securities held to maturity - Fair Value
Securities available for sale	2,479,000		2,479,000		2,455,000
Corporate bonds
Securities held to maturity - Carrying Value
Total securities	35,153,000		35,153,000		25,058,000
Securities held to maturity - Fair Value
Total securities	35,437,000		35,437,000		25,307,000
Securities available for sale	$ 15,272,000		$ 15,272,000		$ 15,158,000
Percentage of concentration risk			10.00%		8.00%