The number is multiplied by the core capital to determine the total consideration in a business combination.

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The maximum amount of the acquired company's adjustable tangible equity as a valuation input to determine the consideration to be paid in a business acquisition.

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The number of banking branches owned.

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The number of shares issued in a stock offering.

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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 equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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Price of a single share of a number of saleable stocks of a company.

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Number of shares of stock issued during the period pursuant to acquisitions.

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Note 8 - Acquisition of Guaranty Bank and Trust Company (Details Textual)			1 Months Ended	6 Months Ended
	Jul. 27, 2017 shares	Jun. 08, 2017 USD ($) $ / shares	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)
Assets			$ 3,457,186,695		$ 3,301,943,748	$ 2,683,434,288
Deposits			$ 2,870,234,239		$ 2,669,261,273
Share Price \| $ / shares		$ 46.05
Term Note [Member]
Debt Instrument, Term			4 years
Debt Instrument, Interest Rate, Effective Percentage			4.16%
Term Note [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate			3.00%
Scenario, Forecast [Member] \| Term Note [Member]
Proceeds from Issuance of Long-term Debt				$ 7,000,000
Guaranty Bank and Trust Company [Member] \| Subsequent Event [Member]
Stock Offering, Number of Shares \| shares	881,631
Community State Bank [Member]
Business Combination, Valuation Input, Acquired Company's Adjusted Tangible Equity		$ 24,286,985
Business Combination, Valuation Input		1.53
Community State Bank [Member] \| Scenario, Forecast [Member]
Business Combination, Consideration Transferred				37,200,000
Payments to Acquire Businesses, Gross				$ 7,800,000
Stock Issued During Period, Shares, Acquisitions \| shares				638,400
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable				$ 29,400,000
Guaranty Bank and Trust Company [Member]
Number of Branches		5
Assets			$ 264,000,000
Deposits			$ 212,000,000