FAIR VALUE - NARRATIVE (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Feb. 28, 2019	Jun. 30, 2018 USD ($)	Oct. 31, 2009
Nonrecurring
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Impaired loans, carrying amount	$ 44,533	$ 44,533		$ 31,226
Related allowance on impaired loans	651	651
Other real estate owned and foreclosed assets, fair value	7,616	7,616		9,591
Nonrecurring | Level 3
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Impaired loans, carrying amount	44,533	44,533		31,226
Other real estate owned and foreclosed assets, fair value	$ 7,616	$ 7,616		$ 9,591
Non-agency | Level 3
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Unemployment rate			3.80%		10.00%
Non-agency | Discounted Cash Flow | Minimum | Projected Loss Severity | Level 3
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Available-for-sale securities, measurement input	0.400	0.400
Non-agency | Discounted Cash Flow | Minimum | Projected Constant Default Rate | Level 3
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Available-for-sale securities, measurement input	0.015	0.015
Non-agency | Discounted Cash Flow | Minimum | Discount Rate
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Available-for-sale securities, measurement input	2.71	2.71
Non-agency | Discounted Cash Flow | Maximum | Projected Loss Severity | Level 3
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Available-for-sale securities, measurement input	0.683	0.683
Non-agency | Discounted Cash Flow | Maximum | Projected Constant Default Rate | Level 3
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Available-for-sale securities, measurement input	0.160	0.160
Non-agency | Discounted Cash Flow | Maximum | Discount Rate
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Available-for-sale securities, measurement input	6.79	6.79
Nonperforming | Nonrecurring
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Impaired loans, charge-offs		$ 1,027
Impaired loans, life to date charge-offs	$ 2,591	2,591
Impaired loans, life to date payments applied to principal		985
Impaired loans, life to date principal balance adjustments for allowance write-downs		$ 3,576
Other real estate owned | Nonrecurring
Fair Value Inputs, Equity, Quantitative Information [Line Items]
Impaired loans, charge-offs	$ 987