v3.26.1
Fees and Expenses - TANAKA Growth Fund
Mar. 31, 2026
Prospectus [Line Items]  
Expense Heading [Optional Text] FEES AND EXPENSES
Expense Narrative [Text Block]

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. More information about these and other discounts is available from your financial professional.

 
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
   
Redemption Fees (as a percentage of amount redeemed within 5 days of purchase) 2.00%
Maximum Account Fee (1) $8.00

 

(1)Applies to accounts with a balance of less than $1,000. This fee will be deducted directly from applicable accounts, if necessary by redeeming Fund shares.  For more information about this fee, please see Account Servicing Fee on page [11] of the Prospectus.

 
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment.)
Annual Fund Operating Expenses [Table]
   
Management Fee 1.00%
Distribution/Service Fee (12b-1 Fees) 0.25%
Other Expenses (including administrative fees, transfer agency fees, and all other ordinary operating expenses not listed above) 0.70%
Total Annual Fund Operating Expenses 1.95%
Fee Waiver and/or Expense Reimbursement (1) 0.00%

Total Annual Operating Expenses After Fee Waiver and/or

Expense Reimbursement

 1.95%

 

(1)Pursuant to a written expense limitation agreement, the Fund's Adviser has agreed to waive or limit its fees and assume other expenses of the Fund (excluding interest, taxes, brokerage commissions and other expenditures capitalized in accordance with generally accepted accounting principles or other extraordinary expenses), so that the Fund’s ratio of total annual operating expenses is limited to 2.45% for Class R shares. The expense limitation agreement is effective on an annual basis and may be terminated only by the Board of Trustees by providing 90 days notice, or if the Adviser ceases to serve as adviser to the Fund. The Adviser is entitled to reimbursement of fees waived or expenses assumed subject to the limitations that (i) the reimbursements is made for fees waived or expenses incurred not more than three years prior to the date of the reimbursement and (ii) the reimbursement may not be made if it would cause the Fund’s annual expense limitation to be exceeded for Class R Shares. Further, any recoupments will be subject to any lower expenses limitations that have been later implemented by the Board.

 
Expense Example [Heading] Expense Example
Expense Example Narrative [Text Block]

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

 

 
Expense Example, With Redemption [Table]
One Year Three Years Five Years Ten Years
$198 $612 $1,052 $2,275

 
Portfolio Turnover [Heading] PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 23.35% of the average value of its portfolio.

 
Portfolio Turnover, Rate 23.35%