SECURITIES - UNREALIZED GAIN (LOSS) ON INVESTMENTS (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Available-for-sale debt securities—net unrealized gains	$ (432)	$ 905
Available-for-sale debt securities—non-credit related	(845)	(845)
Subtotal	(1,277)	60
Tax (provision) benefit	340	(44)
Net unrealized gain (loss) on investment securities in accumulated other comprehensive loss	$ (937)	$ 16

Accumulated Other Comprehensive Income (Loss), Investment Securities, Before Tax

No definition available.

Name:	ax_AccumulatedOtherComprehensiveIncomeLossInvestmentSecuritiesBeforeTax
Namespace Prefix:	ax_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Accumulated Other Comprehensive Income (Loss), Investment Securities, Net of Tax

No definition available.

Name:	ax_AccumulatedOtherComprehensiveIncomeLossInvestmentSecuritiesNetOfTax
Namespace Prefix:	ax_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Accumulated Other Comprehensive Income (Loss), Investment Securities, Tax Expense (Benefit)

No definition available.

Name:	ax_AccumulatedOtherComprehensiveIncomeLossInvestmentSecuritiesTaxExpenseBenefit
Namespace Prefix:	ax_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Available-for-sale, Debt Securities, Net Unrealized Gains

No definition available.

Name:	ax_AccumulatedOtherComprehensiveIncomeLossOtherThanTemporaryImpairmentAvailableForSaleDebtSecuritiesNetUnrealizedGains
Namespace Prefix:	ax_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Before Tax, Available-for-Sale, Debt Securities

No definition available.

Name:	ax_AccumulatedOtherComprehensiveIncomeLossOtherthanTemporaryImpairmentNotCreditLossBeforeTaxAvailableforSaleDebtSecurities
Namespace Prefix:	ax_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

Name:	us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration