Earnings per share

9 Months Ended

Oct. 31, 2012

Earnings Per Share [Abstract]

Earnings per share [Text Block]

Earnings per share.

	Three Months Ended October 31,		Nine Months Ended October 31,
	2012	2011	2012	2011
Basic weighted average number of common shares outstanding	6,924	6,881	6,921	6,866
Dilutive effect of stock options	—	—	—	—
Weighted average number of common shares outstanding assuming full dilution	6,924	6,881	6,921	6,866
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	785	311	494	311
Stock options with an exercise price below the average market price	172	547	463	547