2. Basis of Presentation and Significant Accounting Policies: Stockholders' Equity (Details)	3 Months Ended
	Apr. 30, 2017 USD ($) shares
Details
Stock Issued During Period, Shares, Employee Stock Ownership Plan	5,892
Treasury Stock, Shares, Acquired	9,108
Stock Issued During Period, Value, Treasury Stock Reissued | $	$ 38,250