Earnings Per Share (Details) (USD $)	3 Months Ended		6 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Numerator
Net profit (loss) from continuing operations	$ 4,171,399	$ 1,643,830	$ 3,326,919	$ (8,477,637)
Denominator
Weighted-average shares outstanding before common share equivalents	5,352,034	5,271,997	5,341,578	5,235,957
Weighted average common equivalent shares resulting from the warrant issued June 28, 2013 to the subordinated debt lender LKL Investments LLC	207,539	0	103,769	0
Total weighted average, including common equivalent shares	5,559,573	5,271,997	5,445,348	5,235,957
Effect of dilutive securities from restricted stock plan and from dilutive effect of stock options	108,663	169,170	73,725	0
Denominator for diluted earnings (loss) per share (adjusted weighted average shares)	5,668,236	5,441,167	5,519,073	5,235,957
Basic earnings ( loss) per share from continuing operations (in dollars per share)	$ 0.75	$ 0.31	$ 0.61	$ (1.62)
Diluted earnings (loss) per share from continuing operations (in dollars per share)	$ 0.74	$ 0.30	$ 0.60	$ (1.62)