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STOCKHOLDERS' EQUITY (Details) (USD $)
 3 Months Ended 0 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Feb. 18, 2015
Jan. 22, 2015
Issuance of common stock [Abstract]        
Net proceeds from stock issued $ 8,365,000us-gaap_ProceedsFromIssuanceOfCommonStock $ 0us-gaap_ProceedsFromIssuanceOfCommonStock    
Dividends [Abstract]        
Declaration date Apr. 15, 2015      
Record date Apr. 29, 2015      
Payable May 06, 2015      
Amount Paid in Cash 1,299,000us-gaap_DividendsCommonStockCash      
Common Class A [Member]        
Issuance of common stock [Abstract]        
Stock issued (in shares)     450,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember		 2,000,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
Net proceeds from stock issued     $ 8,400,000us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember		 $ 37,000,000us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember
Dividends [Abstract]        
Dividend (in dollars per share) $ 0.072qada_DividendsAmountPerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember		      
Common Class B [Member]        
Dividends [Abstract]        
Dividend (in dollars per share) $ 0.06qada_DividendsAmountPerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember