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LEASES - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Lessee, Lease, Description [Line Items] |  |
Operating lease, weighted average remaining lease term | 12 years 1 month 6 days |
Operating lease, weighted average discount rate | 3.37% |
Operating leases, rent expense | $ 200 |
Finance lease, weighted average remaining lease term | 13 years 8 months 12 days |
Finance lease, weighted average discount rate | 3.51% |
Director |  |
Lessee, Lease, Description [Line Items] |  |
Operating leases, rent expense | $ 24 | $ 12
1365 New Scotland Road, Slingerlands, New York | Director |  |
Lessee, Lease, Description [Line Items] |  |
Operating leases, rent expense | 12 | $ 12
Operating lease, monthly rent expense | 4 |
2 Rush Street, Schenectady, New York | Director |  |
Lessee, Lease, Description [Line Items] |  |
Operating lease, monthly rent expense | $ 8 |

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- Definition Weighted average discount rate for finance lease calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(4) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 + Details
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- Definition Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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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. + Details
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