v3.26.1
Shareholder Report, Line Graph (Details) - USD ($)
 12 Months Ended 24 Months Ended 36 Months Ended 48 Months Ended 60 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended
Jun. 30, 2016
Jun. 30, 2026
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2026
C000009900                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   James Balanced: Golden Rainbow Fund - Retail Class                    
Accumulated Value $ 10,000   $ 10,392 $ 10,586 $ 10,455 $ 10,331 $ 11,920 $ 10,851 $ 11,546 $ 13,114 $ 14,221 $ 16,310
C000075008                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   James Balanced: Golden Rainbow Fund - Institutional Class                    
Accumulated Value 50,000   52,116 53,218 52,691 52,198 60,355 55,088 58,745 66,913 72,750 83,622
C000009903                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   James Small Cap Fund                    
Accumulated Value 10,000   11,136 12,406 10,468 8,475 13,803 12,701 14,712 18,329 20,493 27,117
C000090023                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   James Micro Cap Fund                    
Accumulated Value 10,000   11,490 12,826 12,153 10,032 15,502 13,549 15,670 18,864 19,069 24,840
C000157576                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   James Aggressive Allocation Fund                    
Accumulated Value 10,000   10,654 11,438 11,049 10,099 12,636 10,848 12,477 15,114 16,728 20,898
Bloomberg US 3000 (USD) TR                        
Account Value [Line Items]                        
Accumulated Value 10,000   11,853 13,611 14,814 15,808 22,842 19,604 23,303 28,707 33,047 40,697
Bloomberg US 3000 (USD) TR                        
Account Value [Line Items]                        
Accumulated Value 50,000   59,267 68,055 74,071 79,040 114,208 98,019 116,517 143,534 165,235 203,483
Bloomberg US 3000 (USD) TR                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg US 3000 Index                    
Accumulated Value 10,000   11,853 13,611 14,814 15,808 22,842 19,604 23,303 28,707 33,047 40,697
Bloomberg US 3000 (USD) TR                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg US 3000 Index                    
Accumulated Value 10,000   11,853 13,611 14,814 15,808 22,842 19,604 23,303 28,707 33,047 40,697
Bloomberg US 3000 (USD) TR                        
Account Value [Line Items]                        
Accumulated Value 10,000   11,853 13,611 14,814 15,808 22,842 19,604 23,303 28,707 33,047 40,697
Bloomberg Intermediate U.S. Government/Credit Bond Index                        
Account Value [Line Items]                        
Accumulated Value 10,000   9,979 9,921 10,609 11,364 11,385 10,556 10,546 10,989 11,729 12,097
Bloomberg US 1000 Total Return Index                        
Account Value [Line Items]                        
Accumulated Value 10,000   11,815 13,536 14,883 16,027 22,923 19,850 23,673 29,343 33,877 41,474
Bloomberg US 2000 (USD) TR                        
Account Value [Line Items]                        
Accumulated Value 10,000   12,334 14,573 13,897 12,950 21,962 16,581 18,611 20,353 21,980 30,973
James Golden Rainbow Blend *                        
Account Value [Line Items]                        
Accumulated Value 10,000   10,999 11,848 12,478 13,064 16,410 14,263 15,416 17,043 18,681 21,799
VettaFi U.S. Equity 3000 Index                        
Account Value [Line Items]                        
Accumulated Value 10,000   11,849 13,618 14,861 15,852 22,872 19,582 23,283 28,661 33,024 40,683
James Golden Rainbow Blend *                        
Account Value [Line Items]                        
Accumulated Value 50,000   54,996 59,238 62,390 65,322 82,050 71,315 77,078 85,217 93,403 108,996
Bloomberg Intermediate U.S. Government/Credit Bond Index                        
Account Value [Line Items]                        
Accumulated Value 50,000   49,894 49,605 53,043 56,818 56,927 52,782 52,732 54,943 58,645 60,484
Bloomberg US 1000 Total Return Index                        
Account Value [Line Items]                        
Accumulated Value 50,000   59,074 67,681 74,416 80,134 114,613 99,251 118,364 146,713 169,383 207,369
Bloomberg US 2000 (USD) TR                        
Account Value [Line Items]                        
Accumulated Value 50,000   61,670 72,865 69,485 64,749 109,810 82,907 93,054 101,766 109,898 154,863
VettaFi U.S. Equity 3000 Index                        
Account Value [Line Items]                        
Accumulated Value 50,000   59,245 68,089 74,305 79,260 114,359 97,910 116,417 143,303 165,121 203,415
Bloomberg US 2000 (USD) TR                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg US 2000 Index                    
Accumulated Value 10,000   12,334 14,573 13,897 12,950 21,962 16,581 18,611 20,353 21,980 30,973
VettaFi U.S. Equity 3000 Index                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   VettaFi U.S. Equity 3000 Index                    
Accumulated Value 10,000   11,849 13,618 14,861 15,852 22,872 19,582 23,283 28,661 33,024 40,683
Bloomberg US Micro Cap Total Return Index                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   Bloomberg US Micro Cap Index                    
Accumulated Value 10,000   12,614 15,210 12,878 13,003 27,313 17,730 17,744 17,198 19,077 26,558
VettaFi U.S. Equity 3000 Index                        
Account Value [Line Items]                        
Line Graph and Table Measure Name   VettaFi U.S. Equity 3000 Index                    
Accumulated Value 10,000   11,849 13,618 14,861 15,852 22,872 19,582 23,283 28,661 33,024 40,683
Bloomberg U.S. Government/Credit Bond Index                        
Account Value [Line Items]                        
Accumulated Value 10,000   9,959 9,896 10,740 11,816 11,770 10,492 10,419 10,704 11,334 11,711
James Aggressive Blend *                        
Account Value [Line Items]                        
Accumulated Value 10,000   11,162 12,197 13,320 14,449 18,388 16,032 17,948 20,776 23,269 26,994
VettaFi U.S. Equity 3000 Index                        
Account Value [Line Items]                        
Accumulated Value $ 10,000   $ 11,849 $ 13,618 $ 14,861 $ 15,852 $ 22,872 $ 19,582 $ 23,283 $ 28,661 $ 33,024 $ 40,683