Note 15 - Regulatory Capital Ratios (Tables)

12 Months Ended

Mar. 31, 2017

Notes Tables

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

						Minimum Capital					Minimum Capital					To be well
	Actual					Required - Basel III					Required - Basel III					capitalized (1)
						Phase-In Schedule					Fully Phased-In
	Amount		Ratio			Amount		Ratio			Amount		Ratio			Amount		Ratio
						(dollars in thousands)					(dollars in thousands)
March 31, 2017
Common equity tier 1 capital (to risk-weighted assets)
Hamilton Bank	$	40,084		12.13	%	$	18,996		5.750	%	$	23,126		7.00	%	$	21,474		6.50	%
Hamilton Bancorp		48,318		14.56	%		19,078		5.750	%		23,225		7.00	%	$	21,566		6.50	%
Total risk-based capital (to risk-weighted assets)
Hamilton Bank		42,334		12.81	%		30,559		9.250	%		34,689		10.50	%		33,037		10.00	%
Hamilton Bancorp		50,568		15.24	%		30,690		9.250	%		34,838		10.50	%		33,179		10.00	%
Tier 1 capital (to risk-weighted assets)
Hamilton Bank		40,084		12.13	%		23,952		7.250	%		28,081		8.50	%		26,429		8.00	%
Hamilton Bancorp		48,318		14.56	%		24,055		7.250	%		28,202		8.50	%		26,543		8.00	%
Tier 1 capital (to adjusted total assets)
Hamilton Bank		40,084		8.28	%		19,365		4.000	%		19,365		4.00	%		24,207		5.00	%
Hamilton Bancorp		48,318		9.96	%		19,402		4.000	%		19,402		4.00	%		24,253		5.00	%
March 31, 2016
Common equity tier 1 capital (to risk-weighted assets)
Hamilton Bank	$	44,518		19.06	%	$	11,971		5.125	%	$	16,350		7.00	%	$	15,182		6.50	%
Hamilton Bancorp		54,459		23.14	%		12,062		5.125	%		16,475		7.00	%		15,298		6.50	%
Total risk-based capital (to risk-weighted assets)
Hamilton Bank		46,262		19.81	%		20,146		8.625	%		24,525		10.50	%		23,357		10.00	%
Hamilton Bancorp		56,203		23.88	%		20,299		8.625	%		24,712		10.50	%		23,535		10.00	%
Tier 1 capital (to risk-weighted assets)
Hamilton Bank		44,518		19.06	%		15,474		6.625	%		19,854		8.50	%		18,686		8.00	%
Hamilton Bancorp		54,459		23.14	%		15,592		6.625	%		20,005		8.50	%		18,828		8.00	%
Tier 1 capital (to adjusted total assets)
Hamilton Bank		44,518		11.78	%		15,114		4.000	%		15,114		4.00	%		18,892		5.00	%
Hamilton Bancorp		54,459		14.23	%		15,312		4.000	%		15,312		4.00	%		19,140		5.00	%