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Note 12 - Fair Value and Interest Rate Risk (Details) - Carrying Amounts and Estimated Fair Values of Financial Instruments - USD ($) | Mar. 31, 2016 | Dec. 31, 2015
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Financial Assets: |  |
Cash and noninterest bearing balances due from banks | $ 2,931,000 | $ 2,588,000
Interest-bearing deposits due from banks | 64,075,000 | 82,812,000
Other investments | 4,450,000 | 4,450,000
Federal Reserve Bank stock | 2,099,000 | 2,075,000
Federal Home Loan Bank stock | 6,570,000 | 6,570,000
Loans receivable, net | 479,936,000 | 479,127,000
Accrued interest receivable | 2,075,000 | 2,010,000
Financial Liabilities: |  |
Savings deposits | 120,051,000 | 108,658,000
Money market deposits | 19,007,000 | 19,522,000
NOW accounts | 28,913,000 | 28,684,000
Brokered Deposits | 33,173,000 | 48,154,000
FHLB Borrowings | 134,900,000 | 132,000,000
Note Payable | 1,893,000 | 1,939,000
Accrued interest payable | 510,000 |
Fair Value, Inputs, Level 1 [Member] |  |
Financial Assets: |  |
Cash and noninterest bearing balances due from banks | 2,931,000 | 2,588,000
Cash and noninterest bearing balances due from banks | 2,931,000 | 2,588,000
Interest-bearing deposits due from banks | 64,075,000 | 82,812,000
Interest-bearing deposits due from banks | 64,075,000 | 82,812,000
Financial Liabilities: |  |
Brokered Deposits | 33,173,000 | 48,154,000
Brokered Deposits | 33,177,000 | 48,062,000
Fair Value, Inputs, Level 2 [Member] |  |
Financial Assets: |  |
Other investments | 4,450,000 | 4,450,000
Other investments | 4,450,000 | 4,450,000
Federal Reserve Bank stock | 2,099,000 | 2,075,000
Federal Reserve Bank stock | 2,099,000 | 2,075,000
Federal Home Loan Bank stock | 6,570,000 | 6,570,000
Federal Home Loan Bank stock | 6,570,000 | 6,570,000
Accrued interest receivable | 2,075,000 | 2,010,000
Accrued interest receivable | 2,075,000 | 2,010,000
Financial Liabilities: |  |
Demand deposits | 79,483,000 | 85,065,000
Demand deposits | 79,483,000 | 85,065,000
Savings deposits | 120,051,000 | 108,658,000
Savings deposits | 120,051,000 | 108,658,000
Money market deposits | 19,007,000 | 19,522,000
Money market deposits | 19,007,000 | 19,522,000
NOW accounts | 28,913,000 | 28,684,000
NOW accounts | 28,913,000 | 28,684,000
Time deposits | 145,010,000 | 156,964,000
Time deposits | 144,775,000 | 156,363,000
FHLB Borrowings | 134,900,000 | 132,000,000
FHLB Borrowings | 134,900,000 | 131,903,000
Subordinated debentures | 8,248,000 | 8,248,000
Subordinated debentures | 8,248,000 | 8,248,000
Accrued interest payable | 586,000 | 532,000
Accrued interest payable | 586,000 | 532,000
Fair Value, Inputs, Level 3 [Member] |  |
Financial Assets: |  |
Loans receivable, net | 479,936,000 | 479,127,000
Loans receivable, net | 481,893,000 | 478,160,000
Financial Liabilities: |  |
Note Payable | 1,893,000 | 1,939,000
Note Payable | $ 1,829,000 | $ 1,904,000

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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://www.xbrl.org/2003/role/presentationRef -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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