CONDENSED FINANCIAL INFORMATION - PARENT COMPANY ONLY (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Assets [Abstract]
Cash	$ 12,307				$ 9,960				$ 12,307	$ 9,960
Available-for-sale securities	310,252				318,823				310,252	318,823
Investments in subsidiary [Abstract]
Other assets	8,935				9,042				8,935	9,042
TOTAL ASSETS	882,427				878,567				882,427	878,567
Liabilities [Abstract]
Other liabilities	8,587				7,712				8,587	7,712
Borrowed funds	46,126				53,882				46,126	53,882
TOTAL LIABILITIES	792,952				797,099				792,952	797,099
Stockholders' equity	89,475				81,468				89,475	81,468	68,690	61,527
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	882,427				878,567				882,427	878,567
Dividends from [Abstract]
TOTAL INTEREST AND DIVIDEND INCOME	9,361	9,474	9,613	9,637	9,646	9,613	9,565	9,469	38,085	38,293	39,000
Realized securities gains (losses)	43	240	213	108	(17)	117	114	120	604	334	99
Expenses									4,642	4,756	4,349
NET INCOME	3,549	3,464	3,753	3,449	3,477	3,378	3,147	2,830	14,215	12,832	11,502
Comprehensive income									13,897	16,727	10,515
Cash flows from operating activities:
Net income	3,549	3,464	3,753	3,449	3,477	3,378	3,147	2,830	14,215	12,832	11,502
Adjustments to reconcile net income to net cash provided by operating activities:
Investment securities gains (losses), net	(43)	(240)	(213)	(108)	17	(117)	(114)	(120)	(604)	(334)	(99)
Other, net									(33)	83	(847)
Net cash provided by operating activities									14,811	15,564	12,816
Cash flows from investing activities:
Purchases of available-for-sale securities									(130,966)	(162,247)	(118,105)
Proceeds from the sale of available-for-sale securities									20,619	10,264	8,871
Net cash used in investing activities									(8,166)	(76,137)	(73,746)
Cash flows from financing activities:
Cash dividends paid									(4,601)	(3,148)	(3,162)
Purchase of treasury stock									(1,348)	(851)	(386)
Purchase of restricted stock									(142)	(159)	(9)
Net cash (used) provided by financing activities									(10,744)	47,010	73,476
Net (decrease) increase in cash and cash equivalents									(4,099)	(13,563)	12,546
Cash and Cash Equivalents at Beginning of Year				30,432				43,995	30,432	43,995	31,449
Cash and Cash Equivalents at End of Year	26,333				30,432				26,333	30,432	43,995
Company [Member]
Assets [Abstract]
Cash	2,366				3,609				2,366	3,609
Available-for-sale securities	1,286				1,154				1,286	1,154
Investments in subsidiary [Abstract]
First Citizens Community Bank	93,363				84,136				93,363	84,136
Other assets	520				510				520	510
TOTAL ASSETS	97,535				89,409				97,535	89,409
Liabilities [Abstract]
Other liabilities	560				441				560	441
Borrowed funds	7,500				7,500				7,500	7,500
TOTAL LIABILITIES	8,060				7,941				8,060	7,941
Stockholders' equity	89,475				81,468				89,475	81,468
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	97,535				89,409				97,535	89,409
Dividends from [Abstract]
Bank subsidiary									5,045	3,823	3,608
Available-for-sale securities									51	42	34
TOTAL INTEREST AND DIVIDEND INCOME									5,096	3,865	3,642
Realized securities gains (losses)									58	(38)	0
Expenses									611	488	423
Income before equity in undistributed earnings of subsidiary									4,543	3,339	3,219
Equity in undistributed earnings - First Citizens Community Bank									9,672	9,493	8,283
NET INCOME									14,215	12,832	11,502
Comprehensive income									13,897	16,727	10,515
Cash flows from operating activities:
Net income									14,215	12,832	11,502
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed earnings of subsidiaries									(9,672)	(9,493)	(8,283)
Investment securities gains (losses), net									(58)	38	0
Other, net									394	125	199
Net cash provided by operating activities									4,879	3,502	3,418
Cash flows from investing activities:
Purchases of available-for-sale securities									(141)	(147)	(542)
Proceeds from the sale of available-for-sale securities									110	184	0
Net cash used in investing activities									(31)	37	(542)
Cash flows from financing activities:
Cash dividends paid									(4,601)	(3,148)	(3,162)
Purchase of treasury stock									(1,348)	(851)	(386)
Purchase of restricted stock									(142)	(159)	(9)
Net cash (used) provided by financing activities									(6,091)	(4,158)	(3,557)
Net (decrease) increase in cash and cash equivalents									(1,243)	(619)	(681)
Cash and Cash Equivalents at Beginning of Year				3,609				4,228	3,609	4,228	4,909
Cash and Cash Equivalents at End of Year	$ 2,366				$ 3,609				$ 2,366	$ 3,609	$ 4,228