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CONDENSED CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Available-for-sale securities, at amortized cost	$ 1,140,086	$ 1,363,902
Held-to-maturity securities, at fair value	142,583	139,377
Equity securities, at amortized cost	$ 1,000	$ 1,000
Common stock, par value (in dollars per share)	$ 0.1	$ 0.1
Common stock, authorized (in shares)	25,000,000	25,000,000
Common stock, issued (in shares)	15,011,660	15,348,287
Treasury stock, shares (in shares)	121,880	122,227

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Face amount or stated value per share of common stock.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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