Number of shares issued per acquiree share of equity interests issued or issuable to acquire entity.

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Number of branch offices operated by the entity.

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Number of operating subsidiaries held by the entity.

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Number of shares of equity interests issued or issuable to acquire entity.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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The difference between the carrying value and the sale price of equity securities, not separately or otherwise categorized as trading or available-for-sale. This element includes investments in which the entity holds a small ownership stake (generally, less than 20% of the shares outstanding) and cannot exert significant influence.

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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.

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Accounting Policies (Details) $ / shares in Units, $ in Thousands		3 Months Ended
	Apr. 01, 2018 USD ($) shares	Jun. 30, 2018 USD ($) Subsidiary Branch	Mar. 31, 2018 USD ($) $ / shares	Dec. 31, 2017 USD ($)
Accounting Policies [Abstract]
Number of subsidiaries \| Subsidiary		2
Number of branch offices \| Branch		19
Acquisitions [Abstract]
Purchase price	$ 7,121
Goodwill		$ 1,620	$ 999	$ 621
Amortizable assets			$ 440
Citizens National Bank [Member]
Acquisitions [Abstract]
Purchase price	$ 7,100
Shares issued per acquired share (in shares) \| shares	0.1041
Cash paid per acquired share (in dollars per share) \| $ / shares			$ 2.19
Shares issued for acquisition (in shares) \| shares	149,625
Amortizable assets			$ 0
ASU 2016-01 [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Reclassification of net unrealized gains on equity securities from AOCI per ASU 2016-01				0
Gain on sale of equity investments		$ 24
ASU 2016-01 [Member] \| Accumulated Other Comprehensive Loss [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Reclassification of net unrealized gains on equity securities from AOCI per ASU 2016-01				(77)
ASU 2016-01 [Member] \| Retained Earnings [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Reclassification of net unrealized gains on equity securities from AOCI per ASU 2016-01				$ 77