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Stockholders' Equity and Regulatory Capital Reconciliation of stockholders' equity to federal regulatory capital (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Stockholders’ equity of the Corporation	$ 194,156	$ 180,707	$ 169,278
Net unrealized and accumulated losses on specific items	1,348	1,684
Disallowed servicing assets	(629)	(751)
Disallowed goodwill and other intangibles	(10,466)	(10,498)
Junior subordinated notes	10,047	10,033
Tier 1 capital	194,456	181,175
Allowable general valuation allowances and subordinated debt	44,573	47,150
Total capital	$ 239,029	$ 228,325

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Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Tier 1 Risk Based Capital as defined in the regulations.

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