BUSINESS SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Segment Reporting Information [Line Items]
Net interest income	$ 12,850	$ 11,895	$ 38,644	$ 36,299
Noninterest income	4,559	3,973	13,953	12,466
Provision for loan losses	750	1,500	3,750	5,500
Salaries and benefits	7,029	5,789	19,550	17,579
Premises and equipment expense	2,290	2,322	7,034	7,058
Other noninterest expense	2,674	2,462	8,193	8,214
Income before income tax expense	4,666	3,795	14,070	10,414
Income tax expense	1,834	(1,537)	5,432	773
Net income	2,832	5,332	8,638	9,641
Total assets for period end	1,583,490		1,583,490		1,600,335
Banking
Segment Reporting Information [Line Items]
Net interest income	12,011	11,028	36,116	33,669
Noninterest income	1,564	1,354	4,390	4,166
Total income	13,575	12,382	40,506	37,835
Provision for loan losses	750	1,500	3,750	5,500
Salaries and benefits	5,696	4,587	15,631	13,968
Premises and equipment expense	2,149	2,169	6,604	6,561
Other noninterest expense	1,837	1,587	5,395	5,153
Total noninterest expense	10,432	9,843	31,380	31,182
Income before income tax expense	3,143	2,539	9,126	6,653
Income tax expense	1,235	(2,021)	3,524	(585)
Net income	1,908	4,560	5,602	7,238
Total assets for period end	1,582,127	1,574,000	1,582,127	1,574,000
PGB Trust & Investments
Segment Reporting Information [Line Items]
Net interest income	839	867	2,528	2,630
Noninterest income	2,995	2,619	9,563	8,300
Total income	3,834	3,486	12,091	10,930
Provision for loan losses
Salaries and benefits	1,333	1,202	3,919	3,611
Premises and equipment expense	141	153	430	497
Other noninterest expense	837	875	2,798	3,061
Total noninterest expense	2,311	2,230	7,147	7,169
Income before income tax expense	1,523	1,256	4,944	3,761
Income tax expense	599	484	1,908	1,358
Net income	924	772	3,036	2,403
Total assets for period end	1,363	1,288	1,363	1,288
Total
Segment Reporting Information [Line Items]
Net interest income	12,850	11,895	38,644	36,299
Noninterest income	4,559	3,973	13,953	12,466
Total income	17,409	15,868	52,597	48,765
Provision for loan losses	750	1,500	3,750	5,500
Salaries and benefits	7,029	5,789	19,550	17,579
Premises and equipment expense	2,290	2,322	7,034	7,058
Other noninterest expense	2,674	2,462	8,193	8,214
Total noninterest expense	12,743	12,073	38,527	38,351
Income before income tax expense	4,666	3,795	14,070	10,414
Income tax expense	1,834	(1,537)	5,432	773
Net income	2,832	5,332	8,638	9,641
Total assets for period end	$ 1,583,490	$ 1,575,288	$ 1,583,490	$ 1,575,288