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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Correction of Immaterial Error (Details) - USD ($)	3 Months Ended			6 Months Ended
	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Correction of an Immaterial Error
Net gain on equity securities	$ 831,000		$ 364,000	$ 1,415,000	$ 282,000
Income tax benefit	(554,000)		$ (985,000)	(857,000)	(387,000)
Retained earnings	(143,023,000)	$ (139,734,000)		(143,023,000)
Accumulated other comprehensive loss	(17,456,000)	(17,370,000)		(17,456,000)
Securities available for sale	(130,440,000)	(75,768,000)		(130,440,000)
Equity securities	$ 2,472,000	8,533,000		$ 2,472,000
Restatement Adjustment
Correction of an Immaterial Error
Income tax benefit					$ (4,093,000)
Restatement Adjustment | Error in Adoption of ASU 2016-01
Correction of an Immaterial Error
Net gain on equity securities		16,000
Income tax benefit		4,000
Unrealized holding gains, net of tax, arising during the period		12,000
Retained earnings		702,000
Accumulated other comprehensive loss		702,000
Securities available for sale		5,100,000
Equity securities		$ 5,100,000

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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