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Employee Stock Compensation and Stock Repurchase Program (Tables)
 6 Months Ended
Jul. 31, 2016
Share-Based Arrangements With Employees and Nonemployees [Abstract]  
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
Shares under 2015 and 2012 Stock Plan
 
Outstanding 
Unvested Grants
 at Maximum at
 Beginning of
 FY17
 
Granted during 
FY17 through
 July 31, 2016
 
Becoming 
Vested during
 FY17 through 
July 31, 2016
 
Forfeited 
during 
FY17 through
 July 31, 2016
 
Outstanding 
Unvested 
Grants at 
Maximum at 
End of 
July 31, 2016
 
Restricted stock grants – employees
 
 
72,999
 
 
—
 
 
—
 
 
5,380
 
 
67,619
 
Matching award program
 
 
3,000
 
 
—
 
 
—
 
 
—
 
 
3,000
 
Bonus in stock - employees
 
 
2,500
 
 
—
 
 
—
 
 
2,500
 
 
—
 
Retainer in stock - directors
 
 
30,764
 
 
—
 
 
2,343
 
 
—
 
 
28,421
 
Total restricted stock plans
 
 
109,263
 
 
—
 
 
2,343
 
 
7,880
 
 
99,040
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average grant date fair value
 
$
9.93
 
 
—
 
$
6.53
 
$
9.68
 
$
10.04