Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balances at Jan. 31, 2014	$ 170,448	$ 139		$ 118,156	$ (7,075)	$ 61,116	$ (1,888)
Beginning balances, shares at Jan. 31, 2014		13,907,000
Net loss	(9,192)					(9,192)
Foreign currency translation	(6,638)						(6,638)
Issuance of common stock upon exercise of options	334	$ 1		333
Issuance of common stock upon exercise of options, shares		65,000
Restricted stock issued	0	$ 0	$ 0	0	0	0	0
Restricted stock issued, shares		40,000
Restricted stock forfeited for taxes	(14)				(14)
Purchase of common stock	(9,762)				(9,762)
Stock-based compensation	1,298			1,298
Ending balances at Jan. 31, 2015	146,474	$ 140		119,787	(16,851)	51,924	(8,526)
Ending balances, shares at Jan. 31, 2015		14,012,000
Net loss	(38,736)					(38,736)
Foreign currency translation	$ (3,575)						(3,575)
Issuance of common stock upon exercise of options, shares	0
Restricted stock issued	$ 0	$ 0	0	0	0	0	0
Restricted stock issued, shares		7,000
Restricted stock forfeited for taxes	(3)				(3)
Tax benefit from exercise of stock options and vesting of restricted stock	(416)			(416)
Stock-based compensation	1,293			1,293
Ending balances at Jan. 31, 2016	105,037	$ 140		120,664	(16,854)	13,188	(12,101)
Ending balances, shares at Jan. 31, 2016		14,019,000
Net loss	(33,153)					(33,153)
Foreign currency translation	$ 1,507						1,507
Issuance of common stock upon exercise of options, shares	0
Restricted stock forfeited for taxes	$ (4)				(4)
Preferred stock offering, value	7,294		$ 7,294
Preferred stock offering, shares			343,000
Preferred stock dividends	(486)					(486)
Stock-based compensation	737			737
Ending balances at Jan. 31, 2017	$ 80,932	$ 140	$ 7,294	$ 121,401	$ (16,858)	$ (20,451)	$ (10,594)
Ending balances, shares at Jan. 31, 2017		14,019,000	343,000