Income Taxes (Textuals) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Loss Carryforwards [Line Items]
Tax at statutory rate		21.00%	35.00%	35.00%
Impact of Tax Cuts and Jobs Act		$ (2,939,000)	$ 46,660,000	$ 0
Impact of Tax Cuts and Jobs Act, revaluation of deferred tax asset		46,000,000
Impact of Tax Cuts and Jobs Act, accelerated amortization		700,000
Realized Built-in Losses		70,253,000
Tax benefit from TCJA	$ 2,900,000
Valuation allowance for deferred tax assets	1,150,000	1,467,000	1,150,000
Bad debt reserve	91,887,000	109,984,000	91,887,000
Unrecognized tax benefits	0	0	0
Liabilities accrued for interest or penalties	0	0	0
Increase (Decrease) In Deferred Tax Assets Valuation Allowance		(317,000)	1,089,000	$ 706,000
Federal
Operating Loss Carryforwards [Line Items]
Gross Federal Net Operating Losses		55,231,000
Alternative Minimum Tax Credits - no expiration
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards		2,524,000
Talmer
Operating Loss Carryforwards [Line Items]
Valuation allowance for deferred tax assets	1,200,000	1,500,000	1,200,000
Valuation allowance for tax credit carryforward	$ 600,000		$ 600,000
Talmer | Subject to limitations under section 382
Operating Loss Carryforwards [Line Items]
Valuation allowance for deferred tax assets		600,000
First Place Holdings/First Place Bank | Subject to limitations under section 382
Operating Loss Carryforwards [Line Items]
Realized Built-in Losses		61,317,000
Bad debt reserve		36,000,000
Potential unrecognized tax expense that would impact effective tax rate		7,500,000
First Place Holdings/First Place Bank | Subject to limitations under section 382 | Federal
Operating Loss Carryforwards [Line Items]
Gross Federal Net Operating Losses		0
First Place Holdings/First Place Bank | Alternative Minimum Tax Credits - no expiration | Subject to limitations under section 382
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards		2,115,000
Talmer West Bank | Subject to limitations under section 382
Operating Loss Carryforwards [Line Items]
Realized Built-in Losses		8,936,000
Talmer West Bank | Subject to limitations under section 382 | Federal
Operating Loss Carryforwards [Line Items]
Gross Federal Net Operating Losses		41,039,000
Talmer West Bank | Alternative Minimum Tax Credits - no expiration | Subject to limitations under section 382
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards		$ 0