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Note 11 - Other Borrowings (Details Textual) - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2006 | Dec. 31, 2019 | Jan. 01, 2019
Annual Paydown of Principal Required |  | 20.00% |
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds |  | $ 273,400,000 |
Stock Issued During Period, Value, New Issues | $ 248,000 |  |
Notes Payable, Total | $ 8,300,000 |  |
Finance Lease, Liability, Total |  | 4,098,000 |
Accounting Standards Update 2016-02 [Member] |  |  |
Finance Lease, Liability, Total |  |  | $ 3,800,000
London Interbank Offered Rate (LIBOR) [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.67% |  |
Mandatorily Redeemable Securities [Member] | Special Purpose Entity [Member] |  |  |
Securities Sold under Agreements to Repurchase, Total | $ 8,000,000 |  |
Letter of Credit [Member] |  |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available |  | 10,000,000 |
Advances from Federal Home Loan Banks, Total |  | $ 0 |

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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