Capital City Bank Group, Inc. Quarterly report pursuant to Section 13 or 15(d)

LOANS, NET (Troubled Debt Restructuring Defaults) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) Contracts	Sep. 30, 2016 USD ($) Contracts	Sep. 30, 2017 USD ($) Contracts	Sep. 30, 2016 USD ($) Contracts
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contracts	0	0	0	3
Post-Modified Recorded Investment \| $	$ 0	$ 0	$ 0	$ 136,000
Commercial, Financial and Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contracts	0	0	0	0
Post-Modified Recorded Investment \| $	$ 0	$ 0	$ 0	$ 0
Real Estate - Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contracts	0	0	0	0
Post-Modified Recorded Investment \| $	$ 0	$ 0	$ 0	$ 0
Real Estate - Commercial Mortgage [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contracts	0	0	0	0
Post-Modified Recorded Investment \| $	$ 0	$ 0	$ 0	$ 0
Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contracts	0	0	0	1
Post-Modified Recorded Investment \| $	$ 0	$ 0	$ 0	$ 98,000
Real Estate - Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contracts	0	0	0	1
Post-Modified Recorded Investment \| $	$ 0	$ 0	$ 0	$ 3,000
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contracts	0	0	0	1
Post-Modified Recorded Investment \| $	$ 0	$ 0	$ 0	$ 35,000