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15. Subsequent Events (Details) - $ / shares
3 Months Ended 9 Months Ended
Dec. 07, 2017
Oct. 29, 2017
Oct. 30, 2016
Oct. 29, 2017
Oct. 30, 2016
15. Subsequent Events (Details) [Line Items]          
Common Stock, Dividends, Per Share, Declared   $ 0.12 $ 0.10 $ 0.36 $ 0.30
Subsequent Event [Member]          
15. Subsequent Events (Details) [Line Items]          
Dividends Payable, Date of Record Dec. 18, 2017        
Dividends Payable, Date Declared Dec. 07, 2017        
Common Stock, Dividends, Per Share, Declared $ 0.14        
Dividends Payable, Date to be Paid Dec. 29, 2017