Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Preferred Stock Offerings [Member] Common Stock [Member]	Preferred Stock Offerings [Member] Preferred Stock [Member]	Preferred Stock Offerings [Member] Additional Paid-in Capital [Member]	Preferred Stock Offerings [Member] Treasury Stock [Member]	Preferred Stock Offerings [Member] Retained Earnings [Member]	Preferred Stock Offerings [Member] AOCI Attributable to Parent [Member]	Preferred Stock Offerings [Member]	Common Stock Offerings [Member] Common Stock [Member]	Common Stock Offerings [Member] Preferred Stock [Member]	Common Stock Offerings [Member] Additional Paid-in Capital [Member]	Common Stock Offerings [Member] Treasury Stock [Member]	Common Stock Offerings [Member] Retained Earnings [Member]	Common Stock Offerings [Member] AOCI Attributable to Parent [Member]	Common Stock Offerings [Member]	Common Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) at Jan. 31, 2020															14,097	994
Balances at Jan. 31, 2020															$ 141	$ 22,104	$ 123,964	$ (16,860)	$ (77,310)	$ (4,387)	$ 47,652
Net loss															0	0	0	0	(6,642)	0	(6,642)
Foreign currency translation															0	0	0	0	0	(131)	(131)
Preferred stock dividends															0	0	0	0	(559)	0	(559)
Stock-based compensation															$ 0	$ 0	230	0	0	0	230
Balances (in shares) at Apr. 30, 2020															14,097	994
Balances at Apr. 30, 2020															$ 141	$ 22,104	124,194	(16,860)	(84,511)	(4,518)	40,550
Balances (in shares) at Jan. 31, 2020															14,097	994
Balances at Jan. 31, 2020															$ 141	$ 22,104	123,964	(16,860)	(77,310)	(4,387)	47,652
Net loss																					(16,836)
Balances (in shares) at Oct. 31, 2020															14,773	994
Balances at Oct. 31, 2020															$ 148	$ 22,104	125,810	(16,860)	(95,823)	(4,425)	30,954
Balances (in shares) at Apr. 30, 2020															14,097	994
Balances at Apr. 30, 2020															$ 141	$ 22,104	124,194	(16,860)	(84,511)	(4,518)	40,550
Net loss															0	0	0	0	(6,604)	0	(6,604)
Foreign currency translation															0	0	0	0	0	82	82
Preferred stock dividends															0	0	0	0	(559)	0	(559)
Stock-based compensation															$ 0	$ 0	219	0	0	0	219
Balances (in shares) at Jul. 31, 2020															14,097	994
Balances at Jul. 31, 2020															$ 141	$ 22,104	124,413	(16,860)	(91,674)	(4,436)	33,688
Net loss															0	0	0	0	(3,590)	0	(3,590)
Foreign currency translation															0	0	0	0	0	11	11
Stock offering (in shares)								676	0
Stock offering								$ 7	$ 0	$ 1,284	$ 0	$ 0	$ 0	$ 1,291
Preferred stock dividends															0	0	0	0	(559)	0	(559)
Stock-based compensation															$ 0	$ 0	113	0	0	0	113
Balances (in shares) at Oct. 31, 2020															14,773	994
Balances at Oct. 31, 2020															$ 148	$ 22,104	125,810	(16,860)	(95,823)	(4,425)	30,954
Balances (in shares) at Jan. 31, 2021															15,681	1,038
Balances at Jan. 31, 2021															$ 157	$ 23,104	128,241	(16,860)	(99,870)	(4,356)	30,416
Net loss															0	0	0	0	(3,984)	0	(3,984)
Foreign currency translation															$ 0	$ 0	0	0	0	57	57
Restricted stock issued (in shares)															5	0
Restricted stock issued															$ 0	$ 0	11	0	0	0	11
Restricted stock forfeited for taxes															0	0	0	(2)	0	0	(2)
Stock offering (in shares)	0	21						18	0
Stock offering	$ 0	$ 503	$ 0	$ 0	$ 0	$ 0	$ 503	$ 0	$ 0	42	0	0	0	42
Preferred stock dividends															0	0	0	0	(584)	0	(584)
Stock-based compensation															$ 0	$ 0	109	0	0	0	109
Balances (in shares) at Apr. 30, 2021															15,704	1,059
Balances at Apr. 30, 2021															$ 157	$ 23,607	128,403	(16,862)	(104,438)	(4,299)	26,568
Balances (in shares) at Jan. 31, 2021															15,681	1,038
Balances at Jan. 31, 2021															$ 157	$ 23,104	128,241	(16,860)	(99,870)	(4,356)	30,416
Net loss																					(9,222)
Balances (in shares) at Oct. 31, 2021															15,704	1,250
Balances at Oct. 31, 2021															$ 157	$ 28,248	128,702	(16,862)	(111,046)	(4,339)	24,860
Balances (in shares) at Apr. 30, 2021															15,704	1,059
Balances at Apr. 30, 2021															$ 157	$ 23,607	128,403	(16,862)	(104,438)	(4,299)	26,568
Net loss															0	0	0	0	(2,660)	0	(2,660)
Foreign currency translation															0	0	0	0	0	(23)	(23)
Stock offering (in shares)	0	164
Stock offering	$ 0	$ 3,999	0	0	0	0	3,999	0	0	1	0	0	0	1
Preferred stock dividends															0	0	0	0	(682)	0	(682)
Stock-based compensation															$ 0	$ 0	115	0	0	0	115
Balances (in shares) at Jul. 31, 2021															15,704	1,223
Balances at Jul. 31, 2021															$ 157	$ 27,606	128,519	(16,862)	(107,780)	(4,322)	27,318
Net loss															0	0	0	0	(2,578)	0	(2,578)
Foreign currency translation															0	0	0	0	0	(17)	(17)
Stock offering	$ 0	$ 642	$ 0	$ 0	$ 0	$ 0	$ 642	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Preferred stock dividends															0	0	0	0	(688)	0	(688)
Stock-based compensation															$ 0	$ 0	183	0	0	0	183
Balances (in shares) at Oct. 31, 2021															15,704	1,250
Balances at Oct. 31, 2021															$ 157	$ 28,248	$ 128,702	$ (16,862)	$ (111,046)	$ (4,339)	$ 24,860