Earnings per share

6 Months Ended

Jul. 31, 2018

Earnings Per Share [Abstract]

Earnings per share [Text Block]

Earnings per share

	Three Months Ended July 31,		Six Months Ended July 31,
	2018	2017	2018	2017
Basic weighted average common shares outstanding	7,820	7,679	7,769	7,645
Dilutive effect of equity compensation plans	—	—	—	—
Weighted average common shares outstanding assuming full dilution	7,820	7,679	7,769	7,645
Stock options not included in the computation of diluted earnings per share of common stock because the option exercise prices exceeded the average market prices of the common shares	178	163	178	163
Stock options with an exercise price below the average market price	90	255	90	255