LEASES - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Lessee, Lease, Description [Line Items]
Operating lease, weighted average remaining lease term (years)	8 years 2 months 26 days		8 years 2 months 26 days
Operating lease, weighted average discount rate	3.37%		3.37%
Operating lease, rent expense	$ 200,000		$ 500,000
Operating lease not yet commenced	$ 0		$ 0
Finance lease, weighted average remaining lease term (years)	9 years 9 months 7 days		9 years 9 months 7 days
Finance lease, weighted average discount rate	3.41%		3.41%
Finance lease not yet commenced	$ 0		$ 0
1365 New Scotland Road, Slingerlands, New York | Director
Lessee, Lease, Description [Line Items]
Monthly rent and common area maintenance expense			4,000
Rent and common area maintenance expense				$ 25,000
2 Rush Street, Schenectady, New York | Director
Lessee, Lease, Description [Line Items]
Operating lease, rent expense	$ 27,000	$ 25,000	53,000	$ 51,000
Monthly rent and common area maintenance expense			$ 9,000