Basis of Presentation (Policy)	9 Months Ended
Sep. 30, 2020
Basis of Presentation [Abstract]
Basis of Presentation	The accompanying unaudited financial statements of Provident Bancorp, Inc., a Maryland corporation (the “Company”), were prepared in accordance with the instructions for Form 10-Q and with Regulation S-X and do not include information or footnotes necessary for a complete presentation of the financial condition, results of operations, and cash flows in conformity with U.S. generally accepted accounting principles (“GAAP”). However, in the opinion of management, all adjustments (consisting only of normal and recurring adjustments) necessary for a fair presentation of the financial statements have been included. The results of operations for the three and nine month periods ended September 30, 2020 are not necessarily indicative of the results that may be expected for future periods, including the entire fiscal year. Certain amounts in 2019 have been reclassified to be consistent with the 2020 consolidated financial statement presentation, and had no effect on the net income reported in the consolidated statements of income. These financial statements should be read in conjunction with the annual financial statements and notes thereto included in the annual report on Form 10-K the Company filed with the Securities and Exchange Commission (the “SEC”) on March 13, 2020. The consolidated financial statements include the accounts of the Company, its wholly owned subsidiary, The Provident Bank, which also operates under the name BankProv (the “Bank”), and the Bank’s wholly owned subsidiaries, Provident Security Corporation and 5 Market Street Security Corporation. Provident Security Corporation and 5 Market Street Security Corporation were established to buy, sell, and hold investments for their own account. All significant inter-company balances and transactions have been eliminated in consolidation.

Basis of Presentation (Policy)

9 Months Ended

Sep. 30, 2020

The accompanying unaudited financial statements of Provident Bancorp, Inc., a Maryland corporation (the “Company”), were prepared in accordance with the instructions for Form 10-Q and with Regulation S-X and do not include information or footnotes necessary for a complete presentation of the financial condition, results of operations, and cash flows in conformity with U.S. generally accepted accounting principles (“GAAP”). However, in the opinion of management, all adjustments (consisting only of normal and recurring adjustments) necessary for a fair presentation of the financial statements have been included. The results of operations for the three and nine month periods ended September 30, 2020 are not necessarily indicative of the results that may be expected for future periods, including the entire fiscal year. Certain amounts in 2019 have been reclassified to be consistent with the 2020 consolidated financial statement presentation, and had no effect on the net income reported in the consolidated statements of income. These financial statements should be read in conjunction with the annual financial statements and notes thereto included in the annual report on Form 10-K the Company filed with the Securities and Exchange Commission (the “SEC”) on March 13, 2020.

The consolidated financial statements include the accounts of the Company, its wholly owned subsidiary, The Provident Bank, which also operates under the name BankProv (the “Bank”), and the Bank’s wholly owned subsidiaries, Provident Security Corporation and 5 Market Street Security Corporation. Provident Security Corporation and 5 Market Street Security Corporation were established to buy, sell, and hold investments for their own account. All significant inter-company balances and transactions have been eliminated in consolidation.