LEASES - Additional Information (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Lessee Lease Description [Line Items]
Operating lease right-of-use assets	$ 9,569,000		$ 9,569,000		$ 9,421,000
Operating lease liabilities	$ 9,902,000		$ 9,902,000		$ 9,737,000
Weighted average discount rate	2.81%		2.81%		3.11%
Weighted average lease term	6 years 7 months 6 days		6 years 7 months 6 days		6 years 3 days
Operating lease costs	$ 691,000	$ 812,000	$ 1,400,000	$ 1,600,000
Variable lease costs	$ 83,000	$ 87,000	$ 167,000	$ 176,000
Minimum [Member]
Lessee Lease Description [Line Items]
Remaining lease term			5 months		1 month
Maximum [Member]
Lessee Lease Description [Line Items]
Remaining lease term			16 years		16 years

Operating lease, remaining lease term.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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-Publisher FASB
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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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