STOCKHOLDERS' EQUITY (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Stockholders' Equity [Abstract]
Number of previous years retained profit taken for dividend calculation		2 years
Funds available for dividends without prior approval		$ 11,400
Capital conservation buffer		8.46%	7.88%		2.50%
Consolidated [Member]
Stockholders' Equity [Abstract]
Capital conservation buffer		2.50%
Total Capital (to risk-weighted assets) [Abstract]
Actual Amount	[1]	$ 206,275	$ 190,770
Actual Ratio	[1]	16.50%	15.90%
For Capital Adequacy Purposes, Amount	[1]	$ 131,615	$ 96,110
For Capital Adequacy Purposes, Ratio	[1]	10.50%	8.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount	[1]	$ 156,684	$ 120,138
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio	[1]	12.50%	10.00%
Tier I Capital (to risk-weighted assets) [Abstract]
Actual Amount	[1]	$ 192,733	$ 177,032
Actual Ratio	[1]	15.40%	14.70%
For Capital Adequacy Purposes, Amount	[1]	$ 106,545	$ 72,083
For Capital Adequacy Purposes, Ratio	[1]	8.50%	6.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount	[1]	$ 131,615	$ 96,110
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio	[1]	10.50%	8.00%
Common Equity Tier I Capital (to risk-weighted assets) [Abstract]
Actual Amount	[1]	$ 186,733	$ 171,032
Actual Ratio	[1]	14.90%	14.20%
For Capital Adequacy Purposes, Amount	[1]	$ 87,743	$ 54,062
For Capital Adequacy Purposes, Ratio	[1]	7.00%	4.50%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount	[1]	$ 112,812	$ 78,090
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio	[1]	9.00%	6.50%
Tier I Capital (to average assets) [Abstract]
Actual Amount	[1]	$ 192,733	$ 177,032
Actual Ratio	[1]	11.30%	10.70%
For Capital Adequacy Purposes, Amount	[1]	$ 68,422	$ 66,040
For Capital Adequacy Purposes, Ratio	[1]	4.00%	4.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount	[1]	$ 85,528	$ 82,550
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio	[1]	5.00%	5.00%
Premier Bank, Inc. [Member]
Stockholders' Equity [Abstract]
Capital conservation buffer		2.50%
Total Capital (to risk-weighted assets) [Abstract]
Actual Amount		$ 144,793	$ 141,302
Actual Ratio		15.80%	15.40%
For Capital Adequacy Purposes, Amount		$ 96,248	$ 73,320
For Capital Adequacy Purposes, Ratio		10.50%	8.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 114,581	$ 91,650
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		12.50%	10.00%
Tier I Capital (to risk-weighted assets) [Abstract]
Actual Amount		$ 133,609	$ 130,428
Actual Ratio		14.60%	14.20%
For Capital Adequacy Purposes, Amount		$ 77,915	$ 54,990
For Capital Adequacy Purposes, Ratio		8.50%	6.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 96,248	$ 73,320
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		10.50%	8.00%
Common Equity Tier I Capital (to risk-weighted assets) [Abstract]
Actual Amount		$ 133,609	$ 130,428
Actual Ratio		14.60%	14.20%
For Capital Adequacy Purposes, Amount		$ 64,166	$ 41,242
For Capital Adequacy Purposes, Ratio		7.00%	4.50%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 82,499	$ 59,572
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		9.00%	6.50%
Tier I Capital (to average assets) [Abstract]
Actual Amount		$ 133,609	$ 130,428
Actual Ratio		11.30%	10.80%
For Capital Adequacy Purposes, Amount		$ 47,240	$ 48,368
For Capital Adequacy Purposes, Ratio		4.00%	4.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 59,051	$ 60,460
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		5.00%	5.00%
Citizens Deposit Bank [Member]
Stockholders' Equity [Abstract]
Capital conservation buffer		2.50%
Total Capital (to risk-weighted assets) [Abstract]
Actual Amount		$ 47,466	$ 42,284
Actual Ratio		14.10%	14.80%
For Capital Adequacy Purposes, Amount		$ 35,387	$ 22,852
For Capital Adequacy Purposes, Ratio		10.50%	8.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 42,128	$ 28,565
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		12.50%	10.00%
Tier I Capital (to risk-weighted assets) [Abstract]
Actual Amount		$ 45,108	$ 39,420
Actual Ratio		13.40%	13.80%
For Capital Adequacy Purposes, Amount		$ 28,647	$ 17,139
For Capital Adequacy Purposes, Ratio		8.50%	6.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 35,387	$ 22,852
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		10.50%	8.00%
Common Equity Tier I Capital (to risk-weighted assets) [Abstract]
Actual Amount		$ 45,108	$ 39,420
Actual Ratio		13.40%	13.80%
For Capital Adequacy Purposes, Amount		$ 23,592	$ 12,854
For Capital Adequacy Purposes, Ratio		7.00%	4.50%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 30,332	$ 18,567
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		9.00%	6.50%
Tier I Capital (to average assets) [Abstract]
Actual Amount		$ 45,108	$ 39,420
Actual Ratio		8.50%	9.00%
For Capital Adequacy Purposes, Amount		$ 21,128	$ 17,571
For Capital Adequacy Purposes, Ratio		4.00%	4.00%	[2]
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 26,410	$ 21,964
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		5.00%	5.00%

[1] The consolidated company is not subject to Prompt Corrective Action Provisions.

[2] The ratios for capital adequacy purposes do not include the additional capital conservation buffer.