v3.26.1
Shareholder Report
 6 Months Ended
Apr. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name OAK ASSOCIATES FUNDS
Entity Central Index Key 0001050918
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2026
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
C000017876  
Shareholder Report [Line Items]  
Fund Name Black Oak Emerging Technology Fund
Class Name Class I
Trading Symbol BOGSX
Additional Information Phone Number (888) 462-5386
Additional Information Website https://oakfunds.com/strategies/black-oak-emerging-technology/
Expenses [Text Block]

What were the Fund’s costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$57
1.06%
Expenses Paid, Amount $ 57
Expense Ratio, Percent 1.06%
AssetsNet $ 61,936,317
Holdings Count | Holding 28
Advisory Fees Paid, Amount $ 218,835
InvestmentCompanyPortfolioTurnover 7.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$61,936,317
Number of Portfolio Holdings
28
Advisory Fee
$218,835
Portfolio Turnover
7%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Cash & Other Assets
4.4%
Communications
2.2%
Health Care
3.1%
Consumer Discretionary
3.5%
Industrials
9.7%
Technology
77.1%
C000017877  
Shareholder Report [Line Items]  
Fund Name Live Oak Health Sciences Fund
Class Name Class I
Trading Symbol LOGSX
Additional Information Phone Number (888) 462-5386
Additional Information Website https://oakfunds.com/strategies/live-oak-health-sciences/
Expenses [Text Block]

What were the Fund’s costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$52
1.03%
Expenses Paid, Amount $ 52
Expense Ratio, Percent 1.03%
AssetsNet $ 49,479,495
Holdings Count | Holding 29
Advisory Fees Paid, Amount $ 190,806
InvestmentCompanyPortfolioTurnover 3.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$49,479,495
Number of Portfolio Holdings
29
Advisory Fee
$190,806
Portfolio Turnover
3%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Cash & Other Assets
3.2%
Health Care
96.8%
C000017874  
Shareholder Report [Line Items]  
Fund Name Pin Oak Equity Fund
Class Name Class I
Trading Symbol POGSX
Additional Information Phone Number (888) 462-5386
Additional Information Website https://oakfunds.com/strategies/pin-oak-equity/
Expenses [Text Block]

What were the Fund’s costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$48
0.93%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.93%
AssetsNet $ 144,763,954
Holdings Count | Holding 31
Advisory Fees Paid, Amount $ 533,274
InvestmentCompanyPortfolioTurnover 10.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$144,763,954
Number of Portfolio Holdings
31
Advisory Fee
$533,274
Portfolio Turnover
10%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Cash & Other Assets
2.2%
Materials
4.0%
Industrials
5.4%
Energy
6.6%
Consumer Discretionary
7.5%
Communications
16.0%
Financials
17.2%
Health Care
17.8%
Technology
23.3%
C000017875  
Shareholder Report [Line Items]  
Fund Name Red Oak Technology Select Fund
Class Name Class I
Trading Symbol ROGSX
Additional Information Phone Number (888) 462-5386
Additional Information Website https://oakfunds.com/strategies/red-oak-technology-select/
Expenses [Text Block]

What were the Fund’s costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$46
0.89%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.89%
AssetsNet $ 772,348,621
Holdings Count | Holding 29
Advisory Fees Paid, Amount $ 2,666,083
InvestmentCompanyPortfolioTurnover 6.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$772,348,621
Number of Portfolio Holdings
29
Advisory Fee
$2,666,083
Portfolio Turnover
6%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Cash & Other Assets
0.9%
Industrials
4.8%
Consumer Discretionary
9.0%
Communications
18.5%
Technology
66.8%
C000017879  
Shareholder Report [Line Items]  
Fund Name River Oak Discovery Fund
Class Name Class I
Trading Symbol RIVSX
Additional Information Phone Number (888) 462-5386
Additional Information Website https://oakfunds.com/strategies/river-oak-discovery/
Expenses [Text Block]

What were the Fund’s costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$70
1.25%
Expenses Paid, Amount $ 70
Expense Ratio, Percent 1.25%
AssetsNet $ 15,314,767
Holdings Count | Holding 30
Advisory Fees Paid, Amount $ 62,721
InvestmentCompanyPortfolioTurnover 20.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$15,314,767
Number of Portfolio Holdings
30
Advisory Fee (net of waivers)
$62,721
Portfolio Turnover
20%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Cash & Other Assets
3.2%
Consumer Discretionary
2.2%
Energy
2.2%
Health Care
9.6%
Financials
19.7%
Industrials
20.0%
Technology
43.1%
C000017878  
Shareholder Report [Line Items]  
Fund Name Rock Oak Core Growth Fund
Class Name Class I
Trading Symbol RCKSX
Additional Information Phone Number (888) 462-5386
Additional Information Website https://oakfunds.com/strategies/rock-oak-core-growth/
Expenses [Text Block]

What were the Fund’s costs for the last six months?

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$66
1.25%
Expenses Paid, Amount $ 66
Expense Ratio, Percent 1.25%
AssetsNet $ 12,795,991
Holdings Count | Holding 34
Advisory Fees Paid, Amount $ 25,165
InvestmentCompanyPortfolioTurnover 13.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Table Summary
Net Assets
$12,795,991
Number of Portfolio Holdings
34
Advisory Fee (net of waivers)
$25,165
Portfolio Turnover
13%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Cash & Other Assets
1.4%
Consumer Discretionary
1.7%
Communications
3.3%
Technology
10.8%
Materials
12.0%
Financials
12.6%
Energy
13.2%
Health Care
17.0%
Industrials
28.0%
C000017873  
Shareholder Report [Line Items]  
Fund Name White Oak Select Growth Fund
Class Name Class I
Trading Symbol WOGSX
Additional Information Phone Number (888) 462-5386
Additional Information Website https://oakfunds.com/strategies/white-oak-select-growth/
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.89%
AssetsNet $ 476,902,999
Holdings Count | Holding 30
Advisory Fees Paid, Amount $ 1,670,507
InvestmentCompanyPortfolioTurnover 5.00%