LEASES - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) lease	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) lease	Sep. 30, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease, weighted average remaining lease term (years)	8 years 10 days		8 years 10 days
Operating lease, weighted average discount rate	3.38%		3.38%
Operating lease, rent expense	$ 200,000		$ 700,000
Operating lease not yet commenced | lease	1		1
Finance lease, weighted average remaining lease term (years)	9 years 6 months 18 days		9 years 6 months 18 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	$ 28,000	$ 25,000	81,000	$ 76,000
Monthly rent and common area maintenance expense			$ 9,000