Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Preferred Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balances (in shares) at Jan. 31, 2018		14,019	532
Beginning balances at Jan. 31, 2018	$ 65,849	$ 140	$ 11,544	$ 122,304	$ (16,860)	$ (42,425)	$ (8,854)
Net loss	(5,905)					(5,905)
Foreign currency translation	(237)						(237)
Preferred stock offering (in shares)			166
Preferred stock offering	3,768		$ 3,768
Preferred stock dividends	(385)					(385)
Stock-based compensation	126			126
Ending balances (in shares) at Apr. 30, 2018		14,019	698
Ending balances at Apr. 30, 2018	63,216	$ 140	$ 15,312	122,430	(16,860)	(48,715)	(9,091)
Beginning balances (in shares) at Jan. 31, 2018		14,019	532
Beginning balances at Jan. 31, 2018	65,849	$ 140	$ 11,544	122,304	(16,860)	(42,425)	(8,854)
Net loss	(15,685)
Ending balances (in shares) at Oct. 31, 2018		14,049	798
Ending balances at Oct. 31, 2018	60,254	$ 140	$ 17,611	122,879	(16,860)	(59,355)	(4,161)
Beginning balances (in shares) at Apr. 30, 2018		14,019	698
Beginning balances at Apr. 30, 2018	63,216	$ 140	$ 15,312	122,430	(16,860)	(48,715)	(9,091)
Net loss	(4,589)					(4,589)
Foreign currency translation	(141)						(141)
Restricted stock issued (in shares)		30
Preferred stock offering (in shares)			70
Preferred stock offering	1,637		$ 1,637
Preferred stock dividends	(411)					(411)
Stock-based compensation	242			242
Ending balances (in shares) at Jul. 31, 2018		14,049	768
Ending balances at Jul. 31, 2018	59,954	$ 140	$ 16,949	122,672	(16,860)	(53,715)	(9,232)
Net loss	(5,191)					(5,191)
Foreign currency translation	5,071						5,071
Preferred stock offering (in shares)			30
Preferred stock offering	662		$ 662
Preferred stock dividends	(449)					(449)
Stock-based compensation	207			207
Ending balances (in shares) at Oct. 31, 2018		14,049	798
Ending balances at Oct. 31, 2018	60,254	$ 140	$ 17,611	122,879	(16,860)	(59,355)	(4,161)
Beginning balances (in shares) at Jan. 31, 2019		14,049	830
Beginning balances at Jan. 31, 2019	56,678	$ 140	$ 18,330	123,085	(16,860)	(63,973)	(4,044)
Net loss	(2,415)					(2,415)
Foreign currency translation	(450)						(450)
Preferred stock offering (in shares)			17
Preferred stock offering	409		$ 409
Preferred stock dividends	(471)					(471)
Stock-based compensation	172			172
Ending balances (in shares) at Apr. 30, 2019		14,049	847
Ending balances at Apr. 30, 2019	53,923	$ 140	$ 18,739	123,257	(16,860)	(66,859)	(4,494)
Beginning balances (in shares) at Jan. 31, 2019		14,049	830
Beginning balances at Jan. 31, 2019	56,678	$ 140	$ 18,330	123,085	(16,860)	(63,973)	(4,044)
Net loss	(7,579)
Ending balances (in shares) at Oct. 31, 2019		14,097	928
Ending balances at Oct. 31, 2019	50,078	$ 141	$ 20,540	123,721	(16,860)	(73,044)	(4,420)
Beginning balances (in shares) at Apr. 30, 2019		14,049	847
Beginning balances at Apr. 30, 2019	53,923	$ 140	$ 18,739	123,257	(16,860)	(66,859)	(4,494)
Net loss	(3,136)					(3,136)
Foreign currency translation	(41)						(41)
Equity Compensation (in shares)		9
Equity Compensation	26	$ 1		25
Preferred stock offering (in shares)			70
Preferred stock offering	1,571		$ 1,571
Preferred stock dividends	(499)					(499)
Stock-based compensation	170			170
Ending balances (in shares) at Jul. 31, 2019		14,058	917
Ending balances at Jul. 31, 2019	52,014	$ 141	$ 20,310	123,452	(16,860)	(70,494)	(4,535)
Net loss	(2,028)					(2,028)
Foreign currency translation	115						115
Restricted stock issued (in shares)		39
Restricted stock issued	(1)			(1)
Preferred stock offering (in shares)			11
Preferred stock offering	230		$ 230
Preferred stock dividends	(522)					(522)
Stock-based compensation	270			270
Ending balances (in shares) at Oct. 31, 2019		14,097	928
Ending balances at Oct. 31, 2019	$ 50,078	$ 141	$ 20,540	$ 123,721	$ (16,860)	$ (73,044)	$ (4,420)