STOCKHOLDERS' EQUITY (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017		Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Number of previous years retained profit taken for dividend calculation		2 years
Funds available for dividends without prior approval		$ 7,700
Capital conservation buffer		7.56%		6.95%
Consolidated [Member]
Total Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount	[1]	$ 168,072		$ 158,433
Actual Ratio	[1]	15.60%		15.00%
For Capital Adequacy Purposes, Amount	[1]	$ 86,401		$ 84,779
For Capital Adequacy Purposes, Ratio	[1]	8.00%	[2]	8.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount	[1]	$ 108,001		$ 105,973
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio	[1]	10.00%		10.00%
Tier I Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount	[1]	$ 155,968		$ 147,597
Actual Ratio	[1]	14.40%		13.90%
For Capital Adequacy Purposes, Amount	[1]	$ 64,800		$ 63,584
For Capital Adequacy Purposes, Ratio	[1]	6.00%	[2]	6.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount	[1]	$ 86,401		$ 84,779
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio	[1]	8.00%		8.00%
Common Equity Tier I Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount	[1]	$ 150,069		$ 142,024
Actual Ratio	[1]	13.90%		13.40%
For Capital Adequacy Purposes, Amount	[1]	$ 48,600		$ 47,688
For Capital Adequacy Purposes, Ratio	[1]	4.50%	[2]	4.50%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount	[1]	$ 70,201		$ 68,883
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio	[1]	6.50%		6.50%
Tier I Capital (to Average Assets) [Abstract]
Actual Amount	[1]	$ 155,968		$ 147,597
Actual Ratio	[1]	10.70%		10.10%
For Capital Adequacy Purposes, Amount	[1]	$ 58,484		$ 58,420
For Capital Adequacy Purposes, Ratio	[1]	4.00%	[2]	4.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount	[1]	$ 73,106		$ 73,025
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio	[1]	5.00%		5.00%
Premier Bank, Inc. [Member]
Total Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount		$ 123,444		$ 119,860
Actual Ratio		15.40%		15.30%
For Capital Adequacy Purposes, Amount		$ 64,300		$ 62,720
For Capital Adequacy Purposes, Ratio		8.00%	[2]	8.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 80,375		$ 78,400
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		10.00%		10.00%
Tier I Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount		$ 113,938		$ 111,538
Actual Ratio		14.20%		14.20%
For Capital Adequacy Purposes, Amount		$ 48,225		$ 47,040
For Capital Adequacy Purposes, Ratio		6.00%	[2]	6.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 64,300		$ 62,720
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		8.00%		8.00%
Common Equity Tier I Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount		$ 113,938		$ 111,538
Actual Ratio		14.20%		14.20%
For Capital Adequacy Purposes, Amount		$ 36,169		$ 35,280
For Capital Adequacy Purposes, Ratio		4.50%	[2]	4.50%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 52,244		$ 50,960
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		6.50%		6.50%
Tier I Capital (to Average Assets) [Abstract]
Actual Amount		$ 113,938		$ 111,538
Actual Ratio		11.00%		10.60%
For Capital Adequacy Purposes, Amount		$ 41,618		$ 42,159
For Capital Adequacy Purposes, Ratio		4.00%	[2]	4.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 52,022		$ 52,699
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		5.00%		5.00%
Citizens Deposit Bank [Member]
Total Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount		$ 40,839		$ 39,725
Actual Ratio		14.80%		14.30%
For Capital Adequacy Purposes, Amount		$ 22,078		$ 22,181
For Capital Adequacy Purposes, Ratio		8.00%	[2]	8.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 27,598		$ 27,727
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		10.00%		10.00%
Tier I Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount		$ 38,241		$ 37,211
Actual Ratio		13.90%		13.40%
For Capital Adequacy Purposes, Amount		$ 16,559		$ 16,636
For Capital Adequacy Purposes, Ratio		6.00%	[2]	6.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 22,078		$ 22,181
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		8.00%		8.00%
Common Equity Tier I Capital (to Risk-Weighted Assets) [Abstract]
Actual Amount		$ 38,241		$ 37,211
Actual Ratio		13.90%		13.40%
For Capital Adequacy Purposes, Amount		$ 12,419		$ 12,477
For Capital Adequacy Purposes, Ratio		4.50%	[2]	4.50%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 17,939		$ 18,022
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Ratio		6.50%		6.50%
Tier I Capital (to Average Assets) [Abstract]
Actual Amount		$ 38,241		$ 37,211
Actual Ratio		9.00%		9.10%
For Capital Adequacy Purposes, Amount		$ 16,947		$ 16,289
For Capital Adequacy Purposes, Ratio		4.00%	[2]	4.00%
To Be Well Capitalized Under Prompt Corrective Actions Provisions, Amount		$ 21,183		$ 20,361
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.