Note 10. - Loans Receivable, Net: Loans Receivable Troubled Debt Restructuring Policy (Details) (USD $)
6 Months Ended
Sep. 30, 2012
Mar. 31, 2012
Loans Modified as Troubled Debt Restructurings and Included in Impaired Loans $ 19,893,000  
Loans Classified as Troubled Debt Restructurings in Compliance with Terms 17,653,000  
Troubled Debt Restructurings   $ 21,115,000