Note 4 - Cash, Cash Equivalents and Restricted Cash	9 Months Ended
Sep. 30, 2019
Notes to Financial Statements
Cash and Cash Equivalents Disclosure [Text Block]	*4. Cash, Cash Equivalents and Restricted Cash* The Company manages its cash and cash equivalents, which consist of cash on hand, amounts due from banks, and short-term investments with original maturity of three months or less, based upon the Company’s operating, investment, and financing activities. For the purpose of reporting cash flows, these same accounts are included in cash and cash equivalents. The Company is required to maintain reserves with the Federal Reserve Bank. Reserve requirements are based on a percentage of deposit liabilities. The average reserve balances required were $144 thousand and $5.4 million for the nine months ended September 30, 2019 and for the year ended December 31, 2018, respectively. As of September 30, 2019 and December 31, 2018, the Bancorp had $9.1 million and $1.8 million, respectively, on deposit in a cash margin account that serves as collateral for the Bancorp’s interest rate swaps. As of September 30, 2019 and December 31, 2018, the Company held $27.4 million and $7.8 million, respectively, in a restricted escrow account with a major bank for its alternative energy investments. In the unaudited condensed consolidated statement of cash flows, the amounts for the nine months ended September 30, 2018 have been corrected in the current year and differ from the previously reported amounts of zero for decrease in interest-bearing deposits, $806.1 million for net cash used for investing activities, $42.2 million increase in cash and cash equivalents and $539.8 million for cash and cash equivalents, beginning of period.

Note 4 - Cash, Cash Equivalents and Restricted Cash

9 Months Ended

Sep. 30, 2019

Cash and Cash Equivalents Disclosure [Text Block]

4. Cash, Cash Equivalents and Restricted Cash

The Company manages its cash and cash equivalents, which consist of cash on hand, amounts due from banks, and short-term investments with original maturity of three months or less, based upon the Company’s operating, investment, and financing activities. For the purpose of reporting cash flows, these same accounts are included in cash and cash equivalents.

The Company is required to maintain reserves with the Federal Reserve Bank. Reserve requirements are based on a percentage of deposit liabilities. The average reserve balances required were $144 thousand and $5.4 million for the nine months ended September 30, 2019 and for the year ended December 31, 2018, respectively. As of September 30, 2019 and December 31, 2018, the Bancorp had $9.1 million and $1.8 million, respectively, on deposit in a cash margin account that serves as collateral for the Bancorp’s interest rate swaps. As of September 30, 2019 and December 31, 2018, the Company held $27.4 million and $7.8 million, respectively, in a restricted escrow account with a major bank for its alternative energy investments.

In the unaudited condensed consolidated statement of cash flows, the amounts for the nine months ended September 30, 2018 have been corrected in the current year and differ from the previously reported amounts of zero for decrease in interest-bearing deposits, $806.1 million for net cash used for investing activities, $42.2 million increase in cash and cash equivalents and $539.8 million for cash and cash equivalents, beginning of period.