Regulatory Capital (Tables)

6 Months Ended

Jun. 30, 2015

Banking and Thrift [Abstract]

Corporation's and Chemical Bank's actual capital amounts and ratios with the quantitative measures established by regulation to ensure capital adequacy

The summary below compares the actual capital amounts and ratios with the quantitative measures established by regulation to ensure capital adequacy:

	Actual				Minimum Required for Capital Adequacy Purposes				Required to be Well Capitalized Under Prompt Corrective Action Regulations
	Capital Amount		Ratio		Capital Amount		Ratio		Capital Amount		Ratio
	(Dollars in thousands)
June 30, 2015
Total Capital to Risk-Weighted Assets:
Corporation	$	816,595	11.7	%	$	559,273	8.0	%	N/A		N/A
Chemical Bank	713,999		12.1		471,422		8.0		$	589,277	10.0	%
The Bank of Holland	72,506		9.5		61,028		8.0		76,285		10.0
The Bank of Northern Michigan	32,779		10.1		25,878		8.0		32,347		10.0
Tier 1 Capital to Risk-Weighted Assets:
Corporation	741,654		10.6		419,455		6.0		N/A		N/A
Chemical Bank	640,324		10.9		353,566		6.0		471,422		8.0
The Bank of Holland	72,506		9.5		45,771		6.0		61,028		8.0
The Bank of Northern Michigan	32,779		10.1		19,408		6.0		25,878		8.0
Common Equity Tier 1 Capital to Risk-Weighted Assets:
Corporation	723,654		10.4		314,591		4.5		N/A		N/A
Chemical Bank	640,324		10.9		265,175		4.5		383,030		6.5
The Bank of Holland	72,506		9.5		34,328		4.5		49,585		6.5
The Bank of Northern Michigan	32,779		10.1		14,556		4.5		21,025		6.5
Leverage Ratio:
Corporation	741,654		9.4		314,344		4.0		N/A		N/A
Chemical Bank	640,324		8.5		300,703		4.0		375,878		5.0
The Bank of Holland	72,506		9.4		30,710		4.0		38,388		5.0
The Bank of Northern Michigan	32,779		9.1		14,421		4.0		18,026		5.0
December 31, 2014
Total Capital to Risk-Weighted Assets:
Corporation	$	705,130	12.4	%	$	456,302	8.0	%	N/A		N/A
Chemical Bank	654,031		11.5		455,633		8.0		$	569,541	10.0	%
Tier 1 Capital to Risk-Weighted Assets:
Corporation	633,779		11.1		228,151		4.0		N/A		N/A
Chemical Bank	582,783		10.2		227,816		4.0		341,725		6.0
Leverage Ratio:
Corporation	633,779		9.3		273,226		4.0		N/A		N/A
Chemical Bank	582,783		8.5		273,048		4.0		341,310		5.0
June 30, 2014
Total Capital to Risk-Weighted Assets:
Corporation	$	748,332	15.3	%	$	391,911	8.0	%	N/A		N/A
Chemical Bank	601,561		12.3		391,305		8.0		$	489,131	10.0	%
Tier 1 Capital to Risk-Weighted Assets:
Corporation	686,892		14.0		195,955		4.0		N/A		N/A
Chemical Bank	540,214		11.0		195,653		4.0		293,479		6.0
Leverage Ratio:
Corporation	686,892		11.2		244,757		4.0		N/A		N/A
Chemical Bank	540,214		8.8		244,604		4.0		305,755		5.0