XML 42 R20.htm IDEA: XBRL DOCUMENT v2.4.1.9
Net Income per Common Share (Detail Textuals)
3 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Earnings Per Share [Abstract]    
Common stock excluded from the diluted net income per share calculation 160,000us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount  
Common stock issued in connection with exercise or vesting of equity awards 23,000us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation 195,374us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation