Loans Receivable, Net: Schedule of Impaired Loans With No Related Allowance and With An Allowance Recorded (Details) (USD $)	Jun. 30, 2012	Mar. 31, 2012
Impaired Loans Recorded Investment	$ 42,600,000	$ 40,800,000
With no related allowance recorded | Residential Real Estate
Impaired Loans Recorded Investment	2,570,235	2,201,560
Impaired Loans Unpaid Principal Balance	2,625,235	2,456,960
Impaired Loans Average Recorded Investment	2,385,897	2,066,066
Impaired Loans Interest Income Recognized	19,202	65,818
With no related allowance recorded | Consumer
Impaired Loans Recorded Investment	449,577	1,829,478
Impaired Loans Unpaid Principal Balance	513,577	1,879,478
Impaired Loans Average Recorded Investment	1,139,528	2,398,298
Impaired Loans Interest Income Recognized	3,498	86,180
With no related allowance recorded | Commercial Business
Impaired Loans Recorded Investment	14,143	23,752
Impaired Loans Unpaid Principal Balance	14,143	47,752
Impaired Loans Average Recorded Investment	18,948	294,894
Impaired Loans Interest Income Recognized	161	1,677
With no related allowance recorded | Commercial Real Estate
Impaired Loans Recorded Investment	38,506,851	27,425,873
Impaired Loans Unpaid Principal Balance	43,446,649	29,175,328
Impaired Loans Average Recorded Investment	32,966,362	24,020,047
Impaired Loans Interest Income Recognized	211,447	1,186,679
With an allowance recorded | Residential Real Estate
Impaired Loans Recorded Investment	835,364	1,342,501
Impaired Loans Unpaid Principal Balance	1,547,364	1,954,501
Impaired Loans Related Allowance	34,917	155,000
Impaired Loans Average Recorded Investment	1,088,933	586,109
Impaired Loans Interest Income Recognized		6,137
With an allowance recorded | Consumer
Impaired Loans Recorded Investment		19,568
Impaired Loans Unpaid Principal Balance		60,668
Impaired Loans Related Allowance		19,568
Impaired Loans Average Recorded Investment	9,784	28,181
With an allowance recorded | Commercial Business
Impaired Loans Recorded Investment		148,610
Impaired Loans Unpaid Principal Balance		148,610
Impaired Loans Related Allowance		148,610
Impaired Loans Average Recorded Investment	74,305	207,135
Impaired Loans Interest Income Recognized		5,608
With an allowance recorded | Commercial Real Estate
Impaired Loans Recorded Investment	254,450	7,805,844
Impaired Loans Unpaid Principal Balance	700,374	9,945,912
Impaired Loans Related Allowance	9,624	1,313,670
Impaired Loans Average Recorded Investment	4,030,147	4,687,210
Impaired Loans Interest Income Recognized		228,483
Total without and with a related allowance recorded | Residential Real Estate
Impaired Loans Recorded Investment	3,405,599	3,544,061
Impaired Loans Unpaid Principal Balance	4,172,599	4,411,461
Impaired Loans Related Allowance	34,917	155,000
Impaired Loans Average Recorded Investment	3,474,830	2,652,175
Impaired Loans Interest Income Recognized	19,202	71,955
Total without and with a related allowance recorded | Consumer
Impaired Loans Recorded Investment	449,577	1,849,046
Impaired Loans Unpaid Principal Balance	513,577	1,940,146
Impaired Loans Related Allowance		19,568
Impaired Loans Average Recorded Investment	1,149,312	2,426,479
Impaired Loans Interest Income Recognized	3,498	86,180
Total without and with a related allowance recorded | Commercial Business
Impaired Loans Recorded Investment	14,143	172,362
Impaired Loans Unpaid Principal Balance	14,143	196,362
Impaired Loans Related Allowance		148,610
Impaired Loans Average Recorded Investment	93,253	502,029
Impaired Loans Interest Income Recognized	161	7,285
Total without and with a related allowance recorded | Commercial Real Estate
Impaired Loans Recorded Investment	38,761,301	35,231,717
Impaired Loans Unpaid Principal Balance	44,147,023	39,121,240
Impaired Loans Related Allowance	9,624	1,313,670
Impaired Loans Average Recorded Investment	36,996,509	28,707,257
Impaired Loans Interest Income Recognized	211,447	1,415,162
Total without and with a related allowance recorded | Total Loans
Impaired Loans Recorded Investment	42,630,620	40,797,186
Impaired Loans Unpaid Principal Balance	48,847,342	45,669,209
Impaired Loans Related Allowance	44,541	1,636,848
Impaired Loans Average Recorded Investment	41,713,904	34,287,940
Impaired Loans Interest Income Recognized	$ 234,308	$ 1,580,582