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Stockholders' Equity Stockholders' Equity (Tables)
 12 Months Ended
Mar. 31, 2017
Stockholders' Equity Note [Abstract]  
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations
The table below presents the Bank's regulatory capital ratios at March 31, 2017 and 2016.
 
 
March 31, 2017
 
March 31, 2016 Restated (1)
($ in thousands)
 
Amount
 
Ratio
 
Amount
 
Ratio
Tier 1 leverage capital - Restated (1)
 
 
 
 
 
 
 
 
Regulatory capital
 
$
61,960

 
8.98
%
 
$
63,931

 
8.60
%
Individual minimum capital requirement
 
62,092

 
9.00
%
 
 
 
N/A

Minimum capital requirement
 
27,597

 
4.00
%
 
29,740

 
4.00
%
Excess
 
34,363

 
4.98
%
 
34,191

 
4.60
%
 
 
 
 
 
 
 
 
 
Common equity Tier 1 - Restated (1)
 
 
 
 
 
 
 
 
Regulatory capital
 
$
61,960

 
11.88
%
 
$
63,931

 
12.18
%
Minimum capital requirement
 
23,470

 
4.50
%
 
23,622

 
4.50
%
Excess
 
38,490

 
7.38
%
 
40,309

 
7.68
%
 
 
 
 
 
 
 
 
 
Tier 1 risk-based capital - Restated (1)
 
 
 
 
 
 
 
 
Regulatory capital
 
$
61,960

 
11.88
%
 
$
63,931

 
12.18
%
Minimum capital requirement
 
31,294

 
6.00
%
 
31,496

 
6.00
%
Excess
 
30,666

 
5.88
%
 
32,435

 
6.18
%
 
 
 
 
 
 
 
 
 
Total risk-based capital - Restated (1)
 
 
 
 
 
 
 
 
Regulatory capital
 
$
67,020

 
12.85
%
 
$
71,163

 
13.56
%
Individual minimum capital requirement
 
62,588

 
12.00
%
 
 
 
N/A

Minimum capital requirement
 
41,725

 
8.00
%
 
41,995

 
8.00
%
Excess
 
25,295

 
4.85
%
 
29,168

 
5.56
%

(1) March 31, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 19 for further detail.