v3.26.1
Shareholder Fees - TANAKA Growth Fund - Class R
Mar. 31, 2026
USD ($)
Prospectus [Line Items]  
Redemption Fee (as a percentage of Amount Redeemed) (2.00%)
Maximum Account Fee $ 8.00 [1]
[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.