Regulatory Matters (Tables)

12 Months Ended

Jun. 30, 2017

Regulatory Matters [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

(Dollars in thousands)	Actual					For Capital Adequacy Purposes					To Be Well Capitalized Under Prompt Corrective Action Provisions					Capital Conservation Buffer
The Bank of Greene County	Amount		Ratio			Amount		Ratio			Amount		Ratio			Actual			Required
As of June 30, 2017:
Total risk-based capital	$	87,719		15.8	%	$	44,433		8.0	%	$	55,542		10.0	%		7.794	%		1.250	%
Tier 1 risk-based capital		80,671		14.5			33,325		6.0			44,433		8.0			8.525			1.250
Common equity tier 1 capital		80,671		14.5			24.994		4.5			36,102		6.5			10.024			1.250
Tier 1 leverage ratio		80,671		8.5			38,056		4.0			47,571		5.0			4.479			1.250
As of June 30, 2016:
Total risk-based capital	$	76,666		16.3	%	$	37,577		8.0	%	$	46,972		10.0	%		8.322	%		0.625	%
Tier 1 risk-based capital		70,709		15.1			28,183		6.0			37,577		8.0			9.054			0.625
Common equity tier 1 capital		70,709		15.1			21,137		4.5			30,532		6.5			10.554			0.625
Tier 1 leverage ratio		70,709		8.4			33,815		4.0			42,268		5.0			4.364			0.625
Greene County Commercial Bank
As of June 30, 2017:
Total risk-based capital	$	30,095		40.1	%	$	6,011		8.0	%	$	7,514		10.0	%		32.053	%		1.250	%
Tier 1 risk-based capital		30,095		40.1			4,508		6.0			6,011		8.0			34.053			1.250
Common equity tier 1 capital		30,095		40.1			3,381		4.5			4,884		6.5			35.550			1.250
Tier 1 leverage ratio		30,095		9.62			12,508		4.0			15,635		5.0			5.624			1.250
As of June 30, 2016:
Total risk-based capital	$	23,065		40.8	%	$	4,518		8.0	%	$	5,648		10.0	%		32.840	%		0.625	%
Tier 1 risk-based capital		23,065		40.8			3,389		6.0			4,518		8.0			34.840			0.625
Common equity tier 1 capital		23,065		40.8			2,541		4.5			3,671		6.5			36.340			0.625
Tier 1 leverage ratio		23,065		8.1			11,409		4.0			14,262		5.0			4.086			0.625