Note 18 - Fair Value and Interest Rate Risk - Financial Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Available-for-sale securities	$ 39,496	$ 25,576
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale securities	20,473	7,224
Corporate Debt Securities [Member]
Available-for-sale securities	12,974	13,804
Subordinated Notes [Member]
Available-for-sale securities	4,564	4,548
US Treasury Securities [Member]
Available-for-sale securities	1,485
Fair Value, Measurements, Recurring [Member]
Available-for-sale securities	39,496	25,576
Impaired PCI Loans, net	615
Contingent consideration liability	707
Interest rate swap receivable	286
Interest rate swap liability	286
Fair Value, Measurements, Recurring [Member] \| Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale securities	20,473	7,224
Fair Value, Measurements, Recurring [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities	12,974	13,804
Fair Value, Measurements, Recurring [Member] \| Subordinated Notes [Member]
Available-for-sale securities	4,564	4,548
Fair Value, Measurements, Recurring [Member] \| US Treasury Securities [Member]
Available-for-sale securities	1,485
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Available-for-sale securities
Impaired PCI Loans, net
Contingent consideration liability
Interest rate swap receivable
Interest rate swap liability
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member] \| Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale securities
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member] \| Subordinated Notes [Member]
Available-for-sale securities
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member] \| US Treasury Securities [Member]
Available-for-sale securities
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Available-for-sale securities	39,496	25,576
Impaired PCI Loans, net
Contingent consideration liability
Interest rate swap receivable	286
Interest rate swap liability	286
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale securities	20,473	7,224
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities	12,974	13,804
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Subordinated Notes [Member]
Available-for-sale securities	4,564	4,548
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| US Treasury Securities [Member]
Available-for-sale securities	1,485
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member]
Available-for-sale securities
Impaired PCI Loans, net	615
Contingent consideration liability	707
Interest rate swap receivable
Interest rate swap liability
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member] \| Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Available-for-sale securities
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member] \| Subordinated Notes [Member]
Available-for-sale securities
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member] \| US Treasury Securities [Member]
Available-for-sale securities

Fair value portion of impaired PCI loans receivables.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Fair value of contingent consideration in a business combination that is classified in shareholders' equity.

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