Employee Benefit Plans - Additional Information (Detail) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Schedule Of Stock Options [Line Items]
Defined contribution plan employer discretionary contribution amount	$ 0	$ 0	$ 0
Share Granted
Compensation expense	55,000	256,000	305,000
Shares vested	18,000	11,500	15,650
Common stock	100,000,000	100,000,000
Employee Stock Ownership Plan
Schedule Of Stock Options [Line Items]
Minimum age of employees	21
Minimum working hours for eligibility of ESOP	1000 hours
ESOP contributions			0
Employee Stock Ownership Plan | Minimum
Schedule Of Stock Options [Line Items]
ESOP eligibility period	1 year
Management Recognition Plan
Schedule Of Stock Options [Line Items]
Percentage of common stock acquired and reserved for issuance under Management Recognition Plan ("MRP")	4.00%
Contribution towards Management Recognition Plan ("MRP")	2,000,000
Number of Shares acquired under Management Recognition Plan ("MRP") Contribution	1,000,000
Share Granted	0	0	0
Compensation expense	0	0	0
Shares vested	0	0	0
Number of unallocated Management Recognition Plan ("MRP") shares	429,869	429,869	429,869
Cost of unallocated shares	927,000	927,000	927,000
Stock Compensation Plans
Schedule Of Stock Options [Line Items]
Common stock	921,990
Options expiration term	10 years
Stock Compensation Plans | Maximum
Schedule Of Stock Options [Line Items]
Restricted stock	300,000
Stock Options
Schedule Of Stock Options [Line Items]
Compensation expense	0	0	0
Aggregate intrinsic value of options outstanding and exercisable	0
Future grants	810,445
Restricted Stock
Schedule Of Stock Options [Line Items]
Share Granted	0	0	0
Restricted stock option plan expense	55,000	256,000	305,000
Fair value of restricted stock vested	8,000
Restricted Stock | Minimum
Schedule Of Stock Options [Line Items]
Vesting Period	3 years
Restricted Stock | Maximum
Schedule Of Stock Options [Line Items]
Vesting Period	5 years
Defined Contribution Plans
Schedule Of Stock Options [Line Items]
Contribution plan eligibility period	60 days
Employees contribution to defined contribution plan	100.00%
Description of defined contribution pension and other postretirement plans	The Corporation matches the first 2% contributed with a dollar-for-dollar match and the next 2% of employee contributions at a rate of $.50 for each dollar.
Defined contribution plan number of investment options	20
Defined contribution plan employer discretionary contribution amount	213,000	0	0
Deferred Compensation Plans
Schedule Of Stock Options [Line Items]
Compensation expense	0	0	0
Percentage Of Shares Vested	100.00%
Deferred Compensation share vested distribution installments	10
Remaining Shares after first distribution	166,480
Contributions made to participant's account	0	0	0
Deferred compensation obligation component of stockholders deficit	$ 901,000
Deferred Compensation Plans | Excess Benefit and Supplemental Benefit Plans
Schedule Of Stock Options [Line Items]
Remaining Shares after first distribution	67,078