STOCK-BASED COMPENSATION (Details) (USD $)	6 Months Ended		12 Months Ended	6 Months Ended				0 Months Ended			3 Months Ended	0 Months Ended		6 Months Ended
	Jul. 31, 2012 Stock options [Member]	Jul. 31, 2011 Stock options [Member]	Jan. 31, 2012 Stock options [Member]	Jul. 31, 2012 Stock options [Member] Maximum [Member]	Jul. 31, 2011 Stock options [Member] Maximum [Member]	Jul. 31, 2012 Stock options [Member] Minimum [Member]	Jul. 31, 2011 Stock options [Member] Minimum [Member]	Jun. 06, 2012 Stock options [Member] Senior executives [Member]	Apr. 02, 2012 Stock options [Member] Senior executives [Member]	Feb. 27, 2012 Stock options [Member] Senior executives [Member]	Apr. 30, 2012 Stock options [Member] Former Chief Financial Officer [Member]	Jun. 06, 2012 Restricted Stock Units [Member]	Dec. 16, 2011 Restricted Stock Units [Member]	Jul. 31, 2012 Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights of awards granted								one-third exercisable one year from the grant date and the remaining two-thirds vesting two and three years from grant date, respectively.	one-third exercisable one year from the grant date and the remaining two-thirds vesting two and three years from grant date, respectively.	one-third exercisable one year from the grant date and the remaining two-thirds vesting two and three years from grant date, respectively.
Term of awards (in years)	10 years
Weighted average grant date fair value per unit (in dollars per unit)								$ 2.91	$ 3.18	$ 2.96
Unrecognized compensation expense	$ 388,291
Assumptions used [Abstract]
Expected term (years)	5 years	0 years
Risk-free interest rate (in hundredths)	0.88%	0.00%
Expected volatility (in hundredths)	44.00%	0.00%
Dividend yield				2.93%	0.00%	2.88%	0.00%
Options [Roll Forward]
Outstanding at beginning of period (in shares)	1,223,292
Granted (in shares)	155,224							3,300	54,625	97,299
Forfeited (in shares)	(3,301)
Expired (in shares)	(9,956)
Exercised (in shares)	0
Outstanding at end of period (in shares)	1,365,259		1,223,292
Exercisable at end of period (in shares)	1,074,125
Weighted average exercise price [Roll Forward]
Outstanding at beginning of period (in dollars per share)	$ 10.2437
Granted (in dollars per share)	$ 10.0439
Forfeited (in dollars per share)	$ 12.1800
Expired (in dollars per share)	$ 5.5476
Exercised (in dollars per share)	$ 0
Outstanding at end of period (in dollars per share)	$ 10.2506		$ 10.2437
Exercisable at end of period (in dollars per share)	$ 10.1874
Additional disclosures [Abstract]
Outstanding, average remaining life (in years)	5 years 4 months 2 days		5 years 6 months 8 days
Exercisable, average remaining life (in years)	4 years 4 months 24 days
Outstanding, aggregate intrinsic value	227,781
Exercisable, aggregate intrinsic value	227,781
Additional stock compensation expense due to modification											250,000
Awarded aggregate of RSUs												15,465	8,385
Number of non-employee Directors												5	5
Number of common share at vesting date for each grantee (in shares)												1	1
Weighted average fair value as of grant date												$ 9.70
Non-vested, beginning (in units)														8,385
Granted (in units)														15,465
Vested (in units)														(8,385)
Forfeited (in units)														0
Non-vested, ending (in units)														15,465
Unrecognized compensation expense														$ 125,008