Note 10. - Loans Receivable, Net: Schedule of Allowance for Loan Losses by Segment (Details) (USD $)
6 Months Ended 12 Months Ended
Sep. 30, 2012
Mar. 31, 2012
Allowance for loan losses balance beginning of period $ 8,910,121 $ 7,845,950
Allowance for Loan and Lease Losses, Write-offs (776,605) (4,026,264)
Allowance for loan losses balance at end of period 10,227,527 8,910,121
Commercial non-real estate
   
Allowance for loan losses balance beginning of period 1,332,392 99,408
Allowance for loan losses provision for loan loss 223,017  
Allowance for Loan and Lease Losses, Write-offs (103,080) (364,344)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts 600 8,242
Allowance for loan losses balance at end of period 1,452,929 1,332,392
Loans Receivable Allowance for Loan Losses Individually Evaluated for Impairment 548,991 566,942
Loans Receivable Allowance for Loan Losses Collectively Evaluated for Impairment 903,938 765,450
Loans Receivable Individually Evaluated for Impairment 1,596,286 1,571,433
Loans Receivable Collectively Evaluated for Impairment 52,311,926 47,047,375
Loans Receivable Allowance for Loan Losses Ending Balance 53,908,212 48,618,808
Commercial Real Estate
   
Allowance for loan losses balance beginning of period 566,317 2,223,090
Allowance for loan losses provision for loan loss 1,304,269  
Allowance for Loan and Lease Losses, Write-offs   (206,328)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts 2,897  
Allowance for loan losses balance at end of period 1,873,483 566,317
Loans Receivable Allowance for Loan Losses Individually Evaluated for Impairment 810,803 116,583
Loans Receivable Allowance for Loan Losses Collectively Evaluated for Impairment 1,062,680 449,734
Loans Receivable Individually Evaluated for Impairment 12,219,313 11,697,126
Loans Receivable Collectively Evaluated for Impairment 113,270,625 125,865,617
Loans Receivable Allowance for Loan Losses Ending Balance 125,489,938 137,562,743
Construction and Land Development
   
Allowance for loan losses balance beginning of period 1,802,771 549,393
Allowance for loan losses provision for loan loss 193,049  
Allowance for Loan and Lease Losses, Write-offs (82,469) (144,509)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts 56,772 538
Allowance for loan losses balance at end of period 1,970,123 1,802,771
Loans Receivable Allowance for Loan Losses Individually Evaluated for Impairment 483,186 140,900
Loans Receivable Allowance for Loan Losses Collectively Evaluated for Impairment 1,486,937 1,661,871
Loans Receivable Individually Evaluated for Impairment 2,727,945 3,319,004
Loans Receivable Collectively Evaluated for Impairment 42,167,582 46,794,691
Loans Receivable Allowance for Loan Losses Ending Balance 44,895,527 50,113,695
Consumer non-real estate
   
Allowance for loan losses balance beginning of period 498,687 352,948
Allowance for loan losses provision for loan loss 67,479  
Allowance for Loan and Lease Losses, Write-offs (127,390) (189,741)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts 33,359 108,332
Allowance for loan losses balance at end of period 472,135 498,687
Loans Receivable Allowance for Loan Losses Individually Evaluated for Impairment 65,365 77,666
Loans Receivable Allowance for Loan Losses Collectively Evaluated for Impairment 406,770 421,021
Loans Receivable Individually Evaluated for Impairment 198,376 455,411
Loans Receivable Collectively Evaluated for Impairment 32,748,085 34,128,413
Loans Receivable Allowance for Loan Losses Ending Balance 32,946,461 34,583,824
Residential
   
Allowance for loan losses balance beginning of period 4,709,954 4,621,111
Allowance for loan losses provision for loan loss 199,734  
Allowance for Loan and Lease Losses, Write-offs (463,666) (3,121,342)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts 12,835 65,125
Allowance for loan losses balance at end of period 4,458,857 4,709,954
Loans Receivable Allowance for Loan Losses Individually Evaluated for Impairment 1,704,466 608,969
Loans Receivable Allowance for Loan Losses Collectively Evaluated for Impairment 2,754,391 4,100,985
Loans Receivable Individually Evaluated for Impairment 15,204,353 10,143,625
Loans Receivable Collectively Evaluated for Impairment 165,607,564 172,287,040
Loans Receivable Allowance for Loan Losses Ending Balance 180,811,917 182,430,665
Total Loans by Segment
   
Allowance for loan losses balance beginning of period 8,910,121 7,845,950
Allowance for loan losses provision for loan loss 1,987,548  
Allowance for Loan and Lease Losses, Write-offs (776,605) (4,026,264)
Allowance for Loan and Lease Losses, Recoveries of Bad Debts 106,463 182,237
Allowance for loan losses balance at end of period 10,227,527 8,910,121
Loans Receivable Allowance for Loan Losses Individually Evaluated for Impairment 3,612,811 1,511,060
Loans Receivable Allowance for Loan Losses Collectively Evaluated for Impairment 6,614,716 7,399,061
Loans Receivable Individually Evaluated for Impairment 31,946,273 27,186,599
Loans Receivable Collectively Evaluated for Impairment 406,105,782 426,123,136
Loans Receivable Allowance for Loan Losses Ending Balance $ 438,052,055 $ 453,309,735