STOCKHOLDERS' EQUITY AND REGULATORY MATTERS (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)	Dec. 31, 2019
Regulatory Matters [Abstract]
Number of previous years retained profit taken for dividend calculation	2 years
Funds available for dividends without prior approval	$ 11.4
Tier 1 capital	$ 203.8
Summary of Regulatory Capital Ratios [Abstract]
Tier 1 Capital to average assets (CBLR), Ratio	0.110	0.113
Tier 1 Capital to average assets (CBLR), Regulatory Minimum Requirements, Ratio	0.080
Tier 1 Capital to average assets (CBLR) To Be Considered Well Capitalized, Ratio	0.080
Premier Bank, Inc. [Member]
Summary of Regulatory Capital Ratios [Abstract]
Tier 1 Capital to average assets (CBLR), Ratio	0.108
Citizens Deposit Bank & Trust [Member]
Summary of Regulatory Capital Ratios [Abstract]
Tier 1 Capital to average assets (CBLR), Ratio	0.085