Consolidated Statement of Changes in Stockholders' Equity - USD ($)	Total		Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]		Accumulated deficit [Member]		Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]
Stockholders' Equity at Mar. 31, 2014	$ 50,471,000	[1]	$ 45,118,000	$ 61,000	$ 56,114,000		$ (45,268,000)	[1]	$ (417,000)	$ (4,768,000)	$ (369,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) / income attributable to Carver Bancorp, Inc.	(272,000)	[2],[3],[4]	0	0	0				0	0	0
Other comprehensive income (loss), net of tax	3,723,000		0	0	0		0		0	3,723,000	0
Transfer between Non-controlling and Controlling Interest	0		0	0	(650,000)	[5]	0		0	0	650,000	[5]
Net (loss) / income attributable to non-controlling interest	(281,000)		0	0	0		0		0	0	(281,000)
Stock based compensation expense	4,000		0	0	4,000		0		0	0	0
Stockholders' Equity at Mar. 31, 2015	53,645,000	[2],[6]	45,118,000	61,000	55,468,000		(45,540,000)	[3]	(417,000)	(1,045,000)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) / income attributable to Carver Bancorp, Inc.	(170,000)		0	0	0				0	0	0
Other comprehensive income (loss), net of tax	738,000		0	0	0		0		0	738,000	0
Net (loss) / income attributable to non-controlling interest	0
Stock based compensation expense	2,000		0	0	2,000		0		0	0	0
Stockholders' Equity at Mar. 31, 2016	$ 54,215,000		$ 45,118,000	$ 61,000	$ 55,470,000		$ (45,710,000)		$ (417,000)	$ (307,000)	$ 0

[1] (1) March 31, 2015 and 2014 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 18 for further detail.

[2] (1) March 31, 2015 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 18 for further detail.

[3] (1) March 31, 2015 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 18 for further detail. See acc

[4] 1) March 31, 2015 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 18 for further detail.

[5] (2) Carrying amount of non-controlling interest adjusted to reflect the transfer of ownership interest under ASC Topic 810.

[6] (1) March 31, 2015 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 18 for further detail.