BENEFITS (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Jan. 19, 2018
Retirement Benefits [Abstract]
401(k) Plan contribution expense	$ 282	$ 285
Other post-retirement benefit obligation expense for endorsement split-dollar life insurance arrangements	26	18
Employee Stock Ownership Plan (ESOP)
ESOP expense	60	34
Other Retirement Plans
Expenses for Non-Qualified Deferred Compensation Plan	28	21
Grants of Phantom Stock Appreciation Units pursuant to the Plan			53,500
Expense for Phantom Stock Appreciation Units	$ 60	$ 43
Grants of Restricted Stock and Options
Stock options exercised by former Riverside Bank executives, shares	1,350	12,150
Stock options exercised by former Riverside Bank executives, price per share	$ 31.11	$ 25.93
Expense related to stock based compensation	$ 113	$ 61
Unrecognized compensation cost relating to awards	$ 493	$ 288
Forfeiture of restricted common stock, shares		(200)

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