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BORROWINGS (Long-Term Debt) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Debt Instrument [Line Items] |  |
Total Long-Term Borrowings | $ 110,901 | $ 107,755
Subordinated Debt | 34,728 | 34,682
Junior Subordinated Debentures [Member] | Capital Trust V Preferred Securities Due in 2037 [Member] |  |
Debt Instrument [Line Items] |  |
Total Long-Term Borrowings | 51,505 | 51,503
Junior Subordinated Debentures [Member] | Slades Ferry Trust I Preferred Securities Due in 2034 [Member] |  |
Debt Instrument [Line Items] |  |
Total Long-Term Borrowings | 10,234 | 10,229
Junior Subordinated Debentures [Member] | Central Bancorp Capital Trust I Securities Due in 2034 [Member] |  |
Debt Instrument [Line Items] |  |
Total Long-Term Borrowings | 5,258 | 5,258
Junior Subordinated Debentures [Member] | Central Bancorp Capital Trust II Securities Due in 2037 [Member] |  |
Debt Instrument [Line Items] |  |
Total Long-Term Borrowings | 6,083 | 6,083
Junior Subordinated Debentures [Member] | East Main Street Trust [Member] |  |
Debt Instrument [Line Items] |  |
Total Long-Term Borrowings | $ 3,093 | $ 0

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- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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