Consolidated Statements of Operations - Scenario, Unspecified [Domain] - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Interest income:
Loans	$ 19,974	$ 20,734
Mortgage-backed securities	799	1,034
Investment securities	1,339	1,321
Money market investments	215	159
Total interest income	22,327	23,248
Interest expense:
Deposits	2,853	2,797
Advances and other borrowed money	1,089	1,154
Total interest expense	3,942	3,951
Net interest income	18,385	19,297
Provision for loan losses	(3,010)	(426)
Net interest income after provision for loan losses	21,395	19,723
Non-interest income:
Depository fees and charges	3,595	3,452
Loan fees and service charges	708	970
Gain on sale of securities, net	8	552
Gain on sale of loans, net	(2)	1,319
Gain (loss) on real estate owned	5	(257)
Lower of cost or market adjustment on loans held-for-sale	(28)	(231)
Other	1,282	1,001
Total non-interest income	5,568	6,806
Non-interest expense:
Employee compensation and benefits	11,588	11,802
Net occupancy expense	3,839	4,039
Equipment, net	900	983
Data processing	733	1,072
Consulting fees	952	506
Federal deposit insurance premiums	603	1,236
Other	8,099	7,735
Total non-interest expense	26,714	27,373
Income / (loss) before income taxes	249	(844)
Income tax expense (benefit)	166	102
Consolidated net (loss) / income	83	(946)
Net (loss) / income attributable to non-controlling interest	(281)	(110)
Net (loss) / income attributable to Carver Bancorp, Inc.	$ 364	$ (836)
(Loss) / Earnings per common share:
Earnings Per Share, Basic	$ 0.10	$ (0.23)
Earnings Per Share, Diluted	$ 0.10	$ (0.23)