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SECURITIES - Additional Information (Details) | Sep. 30, 2020 USD ($) item | Dec. 31, 2019 USD ($) item
--- | --- | ---
Equity Securities, FV-NI | $ 1,003,000 | $ 979,000
Number of mutual funds | item | 1 | 1
Mutual Fund |  |
Equity Securities Unrealized Gain Cumulative Amount | $ 3,000 |
Equity Securities Unrealized Loss Cumulative Amount |  | $ 21,000
Other Assets | Federal Home Loan Bank of Pittsburgh |  |
Federal Home Loan Bank Stock | 11,929,000 | 10,131,000
Investment Securities [Member] |  |
Debt Securities, Available-for-sale, Restricted | $ 255,312,000 | $ 215,270,000

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- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=75031641&loc=d3e63345-112809 + Details
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