FAIR VALUE OF FINANCIAL INSTRUMENTS - Recurring and Nonrecurring basis (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Available-for-sale Securities	$ 259,332	$ 246,339
U.S. Treasury securities
Assets
Available-for-sale Securities	45,906	75,901
Government sponsored entity debt securities
Assets
Available-for-sale Securities	7,477	7,688
State and municipal securities
Assets
Available-for-sale Securities	31,234	25,274
Corporate securities
Assets
Available-for-sale Securities	50,854	47,405
Level 1
Assets
Available-for-sale Securities	45,906	75,901
Level 2
Assets
Available-for-sale Securities	205,692	162,957
Loans held for sale	39,900	70,565
Level 2 \| Interest rate lock commitments
Assets
Derivative Assets	8,023	6,253
Level 2 \| Forward commitments to sell mortgage-backed securities
Assets
Derivative Assets		125
Liabilities
Derivative liability	140
Level 3
Assets
Available-for-sale Securities	7,734	7,481
Recurring member
Assets
Loans held for sale	39,900	70,565
Total Assets	307,255	323,282
Recurring member \| Interest rate lock commitments
Assets
Derivative Assets	8,023	6,253
Recurring member \| Forward commitments to sell mortgage-backed securities
Assets
Derivative Assets		125
Liabilities
Derivative liability	140
Recurring member \| U.S. Treasury securities
Assets
Available-for-sale Securities	45,906	75,901
Recurring member \| Government sponsored entity debt securities
Assets
Available-for-sale Securities	7,477	7,688
Recurring member \| Agency mortgage-backed securities
Assets
Available-for-sale Securities	123,861	90,070
Recurring member \| Non-agency mortgage-backed securities
Assets
Available-for-sale Securities		1
Recurring member \| State and municipal securities
Assets
Available-for-sale Securities	31,234	25,274
Recurring member \| Corporate securities
Assets
Available-for-sale Securities	50,854	47,405
Recurring member \| Level 1
Assets
Total Assets	45,906	75,901
Recurring member \| Level 1 \| U.S. Treasury securities
Assets
Available-for-sale Securities	45,906	75,901
Recurring member \| Level 2
Assets
Loans held for sale	39,900	70,565
Total Assets	253,615	239,900
Recurring member \| Level 2 \| Interest rate lock commitments
Assets
Derivative Assets	8,023	6,253
Recurring member \| Level 2 \| Forward commitments to sell mortgage-backed securities
Assets
Derivative Assets		125
Liabilities
Derivative liability	140
Recurring member \| Level 2 \| Government sponsored entity debt securities
Assets
Available-for-sale Securities	7,477	7,688
Recurring member \| Level 2 \| Agency mortgage-backed securities
Assets
Available-for-sale Securities	123,861	90,070
Recurring member \| Level 2 \| State and municipal securities
Assets
Available-for-sale Securities	31,234	25,274
Recurring member \| Level 2 \| Corporate securities
Assets
Available-for-sale Securities	43,120	39,925
Recurring member \| Level 3
Assets
Total Assets	7,734	7,481
Recurring member \| Level 3 \| Non-agency mortgage-backed securities
Assets
Available-for-sale Securities		1
Recurring member \| Level 3 \| Corporate securities
Assets
Available-for-sale Securities	7,734	7,480
Non recurring member
Assets measured at fair value on a non-recurring basis:
Mortgage servicing rights	68,557
Impaired loans	7,581	10,202
Other real estate owned	1,102	165
Assets held for sale		1,550
Non recurring member \| Level 2
Assets measured at fair value on a non-recurring basis:
Impaired loans	1,875	6,635
Other real estate owned	1,102	165
Assets held for sale		1,550
Non recurring member \| Level 3
Assets measured at fair value on a non-recurring basis:
Mortgage servicing rights	68,557
Impaired loans	$ 5,706	$ 3,567

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