Segment Reporting (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Segment Reporting [Abstract]
Description of operating segments			The Company operates in a decentralized fashion in three principal business segments: The Old Point National Bank of Phoebus (the Bank), Old Point Trust & Financial Services, N. A. (Trust), and the Company as a separate segment (for purposes of this Note, the Parent). Revenues from the Bank's operations consist primarily of interest earned on loans and investment securities and service charges on deposit accounts. Trust's operating revenues consist principally of income from fiduciary activities. The Parent's revenues are mainly interest and dividends received from the Bank and Trust companies. The Company has no other segments
Number of operating segments			3
Segment reporting information profit (loss) and assets [Abstract]
Interest and dividend Income	$ 7,958,227	$ 8,991,923	$ 24,692,037	$ 27,508,967
Income from fiduciary activities	776,615	713,946	2,396,266	2,244,842
Other income	3,329,017	2,486,800	8,858,099	6,710,868
Total operating income	12,063,859	12,192,669	35,946,402	36,464,677
Interest expense	1,414,095	1,619,033	4,423,427	5,153,302
Provision for loan losses	750,000	600,000	1,950,000	2,900,000	3,700,000
Salaries and employee benefits	5,259,880	4,834,750	15,440,042	14,360,119
Other expenses	3,492,350	3,703,760	10,808,276	10,844,182
Total operating expenses	10,916,325	10,757,543	32,621,745	33,257,603
Income before taxes	1,147,534	1,435,126	3,324,657	3,207,074
Income tax expense (benefit)	73,346	391,847	533,961	783,841
Net income	1,074,188	1,043,279	2,790,696	2,423,233
Total assets	887,885,878	852,568,736	887,885,878	852,568,736	849,503,595
Intersegment loan [Abstract]
Intersegment line of credit facility, amount outstanding	124,000		124,000
Intersegment line of credit facility, remaining borrowing capacity	7,000		7,000
Intersegment line of credit facility, interest rate description			Wall Street Journal Prime Rate minus 0.5%, with a floor of 5.0%
Held-to-maturity securities pledged as collateral on intersegment loan	145,000		145,000
Held-to-maturity securities, fair value	146,000		146,000
Bank [Member]
Segment reporting information profit (loss) and assets [Abstract]
Interest and dividend Income	7,950,468	8,980,855	24,664,745	27,476,064
Income from fiduciary activities	0	0	0	0
Other income	3,224,829	2,437,145	8,520,811	6,503,875
Total operating income	11,175,297	11,418,000	33,185,556	33,979,939
Interest expense	1,414,414	1,619,245	4,424,381	5,153,941
Provision for loan losses	750,000	600,000	1,950,000	2,900,000
Salaries and employee benefits	4,600,299	4,195,687	13,413,051	12,444,063
Other expenses	3,356,522	3,500,412	10,445,457	10,255,450
Total operating expenses	10,121,235	9,915,344	30,232,889	30,753,454
Income before taxes	1,054,062	1,502,656	2,952,667	3,226,485
Income tax expense (benefit)	35,348	408,793	387,534	772,305
Net income	1,018,714	1,093,863	2,565,133	2,454,180
Total assets	883,610,555	848,274,180	883,610,555	848,274,180
Trust [Member]
Segment reporting information profit (loss) and assets [Abstract]
Interest and dividend Income	7,488	10,139	26,440	30,119
Income from fiduciary activities	776,615	713,946	2,396,266	2,244,842
Other income	119,464	65,431	383,816	253,421
Total operating income	903,567	789,516	2,806,522	2,528,382
Interest expense	0	0	0	0
Provision for loan losses	0	0	0	0
Salaries and employee benefits	531,492	510,582	1,632,145	1,524,632
Other expenses	243,821	223,337	728,845	682,616
Total operating expenses	775,313	733,919	2,360,990	2,207,248
Income before taxes	128,254	55,597	445,532	321,134
Income tax expense (benefit)	43,438	18,904	150,977	109,186
Net income	84,816	36,693	294,555	211,948
Total assets	5,335,378	4,882,446	5,335,378	4,882,446
Unconsolidated Parent [Member]
Segment reporting information profit (loss) and assets [Abstract]
Interest and dividend Income	1,105,705	1,134,786	2,866,213	2,678,818
Income from fiduciary activities	0	0	0	0
Other income	165,000	75,000	495,000	225,000
Total operating income	1,270,705	1,209,786	3,361,213	2,903,818
Interest expense	1,585	3,089	4,719	9,267
Provision for loan losses	0	0	0	0
Salaries and employee benefits	128,089	128,481	394,846	391,424
Other expenses	72,283	70,787	175,502	177,544
Total operating expenses	201,957	202,357	575,067	578,235
Income before taxes	1,068,748	1,007,429	2,786,146	2,325,583
Income tax expense (benefit)	(5,440)	(35,850)	(4,550)	(97,650)
Net income	1,074,188	1,043,279	2,790,696	2,423,233
Total assets	90,524,865	85,589,149	90,524,865	85,589,149
Eliminations [Member]
Segment reporting information profit (loss) and assets [Abstract]
Interest and dividend Income	(1,105,434)	(1,133,857)	(2,865,361)	(2,676,034)
Income from fiduciary activities	0	0	0	0
Other income	(180,276)	(90,776)	(541,528)	(271,428)
Total operating income	(1,285,710)	(1,224,633)	(3,406,889)	(2,947,462)
Interest expense	(1,904)	(3,301)	(5,673)	(9,906)
Provision for loan losses	0	0	0	0
Salaries and employee benefits	0	0	0	0
Other expenses	(180,276)	(90,776)	(541,528)	(271,428)
Total operating expenses	(182,180)	(94,077)	(547,201)	(281,334)
Income before taxes	(1,103,530)	(1,130,556)	(2,859,688)	(2,666,128)
Income tax expense (benefit)	0	0	0	0
Net income	(1,103,530)	(1,130,556)	(2,859,688)	(2,666,128)
Total assets	$ (91,584,920)	$ (86,177,039)	$ (91,584,920)	$ (86,177,039)