PENDING ACQUISITION	6 Months Ended
Jun. 30, 2017
Pending Business Combination [Abstract]
Business Combination Pending [Text Block]	Note 16 – PENDING AQUISITION On May 15, 2017, the Company and WashingtonFirst Bankshares, Inc., a Virginia corporation (“WashingtonFirst”) and parent company for WashingtonFirst Bank, entered into a definitive agreement and plan of merger that provides for WashingtonFirst to merge with and into the Company (the “Merger”). At the effective time of the Merger, the combined entity shall exist as a Maryland corporation. Subsequent to the effective date of the Merger, WashingtonFirst Bank, a Virginia state-chartered bank and a wholly-owned subsidiary of WashingtonFirst, will merge with and into the Bank (the “Bank Merger”). The Bank will survive the Bank Merger and continue to exist as a Maryland banking corporation. Under the terms of the agreement, WashingtonFirst shareholders are expected to receive 0.8713 shares of Company common stock for each share owned of WashingtonFirst common stock, subject to adjustment if the Company’s average stock price during a specified measurement period prior to closing is more than $50.15 or less than $37.07 per share. The transaction, which is expected to close in the fourth quarter of 2017, has a value of approximately $498 million in the aggregate, based on the Company’s closing price of $42.72 on May 15, 2017. Upon closing, Sandy Spring shareholders will own approximately 67.8% of the combined company and WashingtonFirst’s shareholders will own approximately 32.2% of the combined company. As of March 31, 2017, WashingtonFirst had $2.1 billion in assets with 19 full-service community banking offices throughout the Washington D.C. Metropolitan region. In addition, WashingtonFirst also provides wealth management services through its subsidiary, 1st Portfolio Wealth Advisors, and mortgage banking services through its subsidiary, WashingtonFirst Mortgage Corporation.

Note 16 – PENDING AQUISITION

On May 15, 2017, the Company and WashingtonFirst Bankshares, Inc., a Virginia corporation (“WashingtonFirst”) and parent company for WashingtonFirst Bank, entered into a definitive agreement and plan of merger that provides for WashingtonFirst to merge with and into the Company (the “Merger”). At the effective time of the Merger, the combined entity shall exist as a Maryland corporation.

Subsequent to the effective date of the Merger, WashingtonFirst Bank, a Virginia state-chartered bank and a wholly-owned subsidiary of WashingtonFirst, will merge with and into the Bank (the “Bank Merger”). The Bank will survive the Bank Merger and continue to exist as a Maryland banking corporation.

Under the terms of the agreement, WashingtonFirst shareholders are expected to receive 0.8713 shares of Company common stock for each share owned of WashingtonFirst common stock, subject to adjustment if the Company’s average stock price during a specified measurement period prior to closing is more than $50.15 or less than $37.07 per share. The transaction, which is expected to close in the fourth quarter of 2017, has a value of approximately $498 million in the aggregate, based on the Company’s closing price of $42.72 on May 15, 2017. Upon closing, Sandy Spring shareholders will own approximately 67.8% of the combined company and WashingtonFirst’s shareholders will own approximately 32.2% of the combined company.

As of March 31, 2017, WashingtonFirst had $2.1 billion in assets with 19 full-service community banking offices throughout the Washington D.C. Metropolitan region. In addition, WashingtonFirst also provides wealth management services through its subsidiary, 1st Portfolio Wealth Advisors, and mortgage banking services through its subsidiary, WashingtonFirst Mortgage Corporation.