Note 2 - Business Combinations - Acquired Identifiable Assets and Liabilities (Details) - USD ($) $ in Thousands		3 Months Ended
Feb. 21, 2020	Mar. 31, 2021	Mar. 31, 2020
Cash paid		$ (0)	$ 10,761
Plains Capital Bank [Member]
Cash paid	$ 11,162
Cash and cash equivalents	353
Loans	45,299
Bank premises and equipment	2,770
Core deposit intangible asset	170
Other assets	163
Total assets acquired	48,755
Deposits	36,973
Other liabilities	1,084
Total liabilities assumed	38,057
Fair value of net assets acquired	10,698
Goodwill	$ 464

The amount of financing receivable recognized as of the acquisition date.

No definition available.

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- Definition

The amount of deposits assumed which have been recognized as of the acquisition date.

+ References

No definition available.

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- Definition

Amount of assets acquired at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

+ References

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- Definition

Amount of liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

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-Name Accounting Standards Codification
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