It represents the cash per share to be paid to each shareholder.

No definition available.

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Represent that percentage of share issued as a part of business consideration for business combination.

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Represent that percentage of cash paid as a part of business consideration for business combination.

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No definition available.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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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 liability recognized arising from contingent consideration in a business combination.

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Amount of assets acquired at the acquisition date.

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

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Amount of liabilities assumed at the acquisition date.

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Fair value of contingent consideration in a business combination that is classified in shareholders' equity.

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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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Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.

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Amount of expense (income) related to the increase (decrease) in reserve for business combination costs. Includes, but is not limited to, legal, accounting, and other costs incurred to consummate the merger.

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

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

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Business Combinations (Details Textual)		1 Months Ended	12 Months Ended
Business Combinations (Details Textual)	Apr. 13, 2017 USD ($)	Feb. 24, 2017 USD ($)	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Goodwill		$ 28,894,000	$ 98,569,000	$ 98,569,000	$ 61,798,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		10 years
Payments to Acquire Businesses, Gross		$ 12,340,000
Business Acquisition, Pro Forma Net Income (Loss)				4,600,000
Noncash Merger Related Costs				3,700,000
Business Combination, Consideration Transferred		68,872,000
Stockholders' Equity Note, Stock Split, Conversion Ratio			2.3616
Labor and Related Expense			$ 52,566,000	49,847,000	40,187,000
Business Combination, Acquisition Related Costs				1,100,000	$ 443,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		4,900,000		756,000
Commercial Bancshares [Member]
Goodwill		28,900,000
Payments to Acquire Businesses, Gross			$ 12,300,000
Labor and Related Expense		2,800,000
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets		348,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		37,500,000
Business Combination, Acquisition Related Costs		$ 3,700,000
Stock Issued During Period, Shares, Acquisitions \| shares			2,279,004
Business Combination Consideration Transferred Cash Per Shares \| $ / shares			$ 51.00
Business Combinations Consideration Transferred In Shares Percentage			80.00%
Business Combinations Consideration Transferred In Cash percentage			20.00%
Corporate One Benefits Agency Inc [Member]
Goodwill				7,900,000
Business Combination, Consideration Transferred	$ 9,300,000
Business Combination, Contingent Consideration, Liability				2,300,000
Contingent Consideration Classified as Equity, Fair Value Disclosure				1,800,000
Corporate One Benefits Agency Inc [Member] \| First Payment [Member]
Payments to Acquire Businesses, Gross	6,500,000
Corporate One Benefits Agency Inc [Member] \| Second Payment [Member]
Payments to Acquire Businesses, Gross	500,000
Corporate One Benefits Agency Inc [Member] \| Third Payment [Member]
Payments to Acquire Businesses, Gross	$ 2,300,000
Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				564,000
Non compete Intangible [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill				$ 192,000