Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 312,235	$ 309,085
Deferred loan orignation fees, net	(626)	(593)
Total loans	$ 311,609	$ 308,492	[1]
Percent of total	100.00%	100.00%
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 184,476	$ 181,210
Total loans	$ 183,850	$ 180,617
Percent of total	59.08%	58.63%
Commercial Real Estate [Member] | Residential ADC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 3,438	$ 2,463
Total loans	$ 3,438	$ 2,463
Percent of total	1.10%	0.80%
Commercial Real Estate [Member] | Commercial ADC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 23,330	$ 24,583
Total loans	$ 23,330	$ 24,583
Percent of total	7.47%	7.95%
Commercial Real Estate [Member] | Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 4,680	$ 3,826
Total loans	$ 4,680	$ 3,826
Percent of total	1.50%	1.24%
Commercial Real Estate [Member] | Mulitfamily [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 12,202	$ 11,980
Total loans	$ 12,202	$ 11,980
Percent of total	3.91%	3.88%
Commercial Real Estate [Member] | Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 72,270	$ 70,279
Total loans	$ 71,644	$ 69,686
Percent of total	23.14%	22.74%
Commercial Real Estate [Member] | Non-owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 68,556	$ 68,079
Total loans	$ 68,556	$ 68,079
Percent of total	21.96%	22.02%
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 44,074	$ 43,780
Total loans	$ 44,074	$ 43,780
Percent of total	14.12%	14.16%
Commercial [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 42,359	$ 41,935
Total loans	$ 42,359	$ 41,935
Percent of total	13.57%	13.56%
Commercial [Member] | Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 374	$ 209
Total loans	$ 374	$ 209
Percent of total	0.12%	0.07%
Commercial [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 1,341	$ 1,636
Total loans	$ 1,341	$ 1,636
Percent of total	0.43%	0.53%
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 44,988	$ 44,698
Total loans	$ 44,988	$ 44,698
Percent of total	14.41%	14.46%
Residential Mortgage [Member] | First Lien Closed-End [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 44,133	$ 43,811
Total loans	$ 44,133	$ 43,811
Percent of total	14.14%	14.17%
Residential Mortgage [Member] | Junior Lien Closed-End [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 855	$ 887
Total loans	$ 855	$ 887
Percent of total	0.27%	0.29%
Home Equity Lines [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 34,199	$ 35,119
Total loans	$ 34,199	$ 35,119
Percent of total	10.95%	11.36%
Consumer - Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 4,498	$ 4,278
Total loans	$ 4,498	$ 4,278
Percent of total	1.44%	1.39%

[1] Derived from Carolina Trust Bancshares Inc's audited financial statements included in its 2016 Annual Report on Form 10-K