Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Preferred Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)
Beginning balances at Jan. 31, 2015	$ 146,474	$ 140	$ 0	$ 119,787	$ (16,851)	$ 51,924	$ (8,526)
Beginning balances (in shares) at Jan. 31, 2015		14,012,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(38,736)					(38,736)
Foreign currency translation	(3,575)						(3,575)
Issuance of common stock upon exercise of options	$ 0	$ 0
Issuance of common stock upon exercise of options (in shares)	0	0
Restricted stock issued	$ 0	$ 0
Restricted stock issued (in shares)		7,000
Restricted stock forfeited for taxes	(3)				(3)
Purchase of common stock	(416)			(416)
Stock-based compensation	1,293			1,293
Ending balances at Jan. 31, 2016	105,037	$ 140	$ 0	120,664	(16,854)	13,188	(12,101)
Ending balances (in shares) at Jan. 31, 2016		14,019,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(33,153)					(33,153)
Foreign currency translation	$ 1,507						1,507
Issuance of common stock upon exercise of options (in shares)	0
Restricted stock forfeited for taxes	$ (4)				(4)
Preferred stock offering	7,294		$ 7,294
Preferred stock offering (in 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 (in shares) at Jan. 31, 2017		14,019,000	343,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(21,069)					(21,069)
Foreign currency translation	$ 1,740						1,740
Issuance of common stock upon exercise of options (in shares)	0
Restricted stock forfeited for taxes	$ (2)				(2)
Preferred stock offering	4,250		$ 4,250
Preferred stock offering (in shares)			189,000
Preferred stock dividends	(905)					(905)
Stock-based compensation	903			903
Ending balances at Jan. 31, 2018	$ 65,849	$ 140	$ 11,544	$ 122,304	$ (16,860)	$ (42,425)	$ (8,854)
Ending balances (in shares) at Jan. 31, 2018		14,019,000	532,000