FAIR VALUE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value Measurements
Blended interest rate for determining fair value of nonaccrual loans (as a percent)	0.00%
Fair value of commitments	$ 0
Financial assets:
Interest-bearing deposits	14,047	$ 5,089
Securities available for sale	86,273	53,728
Carrying Amount
Financial assets:
Total financial assets	928,839	700,800
Financial liabilities:
Total financial liabilities	891,358	656,251
Estimated Fair Value
Financial assets:
Total financial assets	930,379	701,597
Financial liabilities:
Total financial liabilities	884,520	653,799
Level 1 | Carrying Amount
Financial assets:
Cash and cash equivalents	46,755	25,008
Level 1 | Estimated Fair Value
Financial assets:
Cash and cash equivalents	46,755	25,008
Level 2 | Carrying Amount
Financial assets:
Interest-bearing deposits	14,047	5,089
Securities available for sale	84,623	53,728
Federal Home Loan Bank stock	2,911	2,169
Financial liabilities:
Deposits	823,512	610,323
Borrowings	67,579	45,754
Level 2 | Estimated Fair Value
Financial assets:
Interest-bearing deposits	14,047	5,089
Securities available for sale	84,623	53,728
Federal Home Loan Bank stock	2,911	2,169
Financial liabilities:
Deposits	815,960	607,636
Borrowings	68,293	45,989
Significant Unobservable Inputs (Level 3) | Carrying Amount
Financial assets:
Securities available for sale	1,650
Net loans	776,837	613,390
Accrued interest receivable	2,016	1,416
Financial liabilities:
Accrued interest payable	267	174
Significant Unobservable Inputs (Level 3) | Estimated Fair Value
Financial assets:
Securities available for sale	1,650
Net loans	778,377	614,187
Accrued interest receivable	2,016	1,416
Financial liabilities:
Accrued interest payable	$ 267	$ 174