XML 19 R13.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Valuation and Qualifying Accounts
12 Months Ended
Mar. 31, 2011
Valuation and Qualifying Accounts [Abstract]  
VALUATION AND QUALIFYING ACCOUNTS
4.   VALUATION AND QUALIFYING ACCOUNTS
    Information related to the Companies’ allowance for doubtful receivables was as follows:
                                 
                            Thousands of  
    Millions of Yen     U.S. Dollars  
    2011     2010     2009     2011  
 
                               
Balance at beginning of year
  ¥ 116     ¥ 82     ¥ 77     $ 1,401  
Increase due to change in scope of consolidation (Note 7)
            28                  
Charged to costs and expenses
    13       38       13       157  
Balances written-off/reversed
    (30 )     (32 )     (8 )     (362 )
 
                       
 
                               
Balance at end of year
  ¥ 99     ¥ 116     ¥ 82     $ 1,196  
 
                       
    Information related to the Companies’ allowance for returns was as follows:
                                 
                            Thousands of  
    Millions of Yen     U.S. Dollars  
    2011     2010     2009     2011  
 
                               
Balance at beginning of year
  ¥ 1,856     ¥ 2,197     ¥ 3,068     $ 22,426  
Increase due to change in scope of consolidation (Note 7)
            15                  
Charged to costs and expenses
    1,450       1,856       2,197       17,521  
Balances utilized
    (1,856 )     (2,212 )     (3,068 )     (22,426 )
 
                       
 
                               
Balance at end of year
  ¥ 1,450     ¥ 1,856     ¥ 2,197     $ 17,521