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	(10,494)
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)
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
Restricted stock issued	0
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)
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	(5,551)
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)
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)