10. Loans Receivable, Net: Schedule of non-accrual loans by category (Details) (USD $)	6 Months Ended
	Sep. 30, 2012		Mar. 31, 2012
Residential Real Estate
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 4,580,150		$ 3,638,929
FInancing Receivable Recorded Investment in Non-accrual Status, Percentage	1.10%	[1]	0.80%	[1]
Financing Receivable Recorded Investment in Non-accrual Status, Increase (Decrease)	941,221
Financing Receivable Recorded Investment in Non-accrual Status, Percent, Increase (Decrease)	25.90%
Commercial Business
Financing Receivable, Recorded Investment, Nonaccrual Status	42,993		20,808
FInancing Receivable Recorded Investment in Non-accrual Status, Percentage	0.00%	[1]
Financing Receivable Recorded Investment in Non-accrual Status, Increase (Decrease)	22,185
Financing Receivable Recorded Investment in Non-accrual Status, Percent, Increase (Decrease)	106.60%
Commercial Real Estate
Financing Receivable, Recorded Investment, Nonaccrual Status	22,156,550		18,378,165
FInancing Receivable Recorded Investment in Non-accrual Status, Percentage	5.40%	[1]	4.20%	[1]
Financing Receivable Recorded Investment in Non-accrual Status, Increase (Decrease)	3,778,385
Financing Receivable Recorded Investment in Non-accrual Status, Percent, Increase (Decrease)	20.60%
Consumer
Financing Receivable, Recorded Investment, Nonaccrual Status	632,354		620,358
FInancing Receivable Recorded Investment in Non-accrual Status, Percentage	0.20%	[1]	0.10%	[1]
Financing Receivable Recorded Investment in Non-accrual Status, Increase (Decrease)	11,996
Financing Receivable Recorded Investment in Non-accrual Status, Percent, Increase (Decrease)	1.90%
Total Loans
Financing Receivable, Recorded Investment, Nonaccrual Status	27,412,047		22,658,260
FInancing Receivable Recorded Investment in Non-accrual Status, Percentage	6.70%	[1]	5.10%	[1]
Financing Receivable Recorded Investment in Non-accrual Status, Increase (Decrease)	$ 4,753,787
Financing Receivable Recorded Investment in Non-accrual Status, Percent, Increase (Decrease)	21.00%

[1] Percent of gross loans held for investment, net of deferred fees and loans in process and loans held for sale.