Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ 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)															15,681	1,038
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 surrendered for tax withholding															0	0	0	(2)	0	0	(2)
Preferred stock dividends															0	0	0	0	(584)	0	(584)
Stock-based compensation															$ 0	$ 0	109	0	0	0	109
Stock offering (in shares)	0	21						18	0
Stock offering	$ 0	$ 503	$ 0	$ 0	$ 0	$ 0	$ 503	$ 0	$ 0	$ 42	$ 0	$ 0	$ 0	$ 42
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)															15,704	1,059
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)
Preferred stock dividends															0	0	0	0	(682)	0	(682)
Stock-based compensation															$ 0	$ 0	115	0	0	0	115
Stock offering (in shares)	0	164
Stock offering	$ 0	$ 3,999	$ 0	$ 0	$ 0	$ 0	$ 3,999	$ 0	$ 0	$ 1	$ 0	$ 0	$ 0	$ 1
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
Balances (in shares)															15,704	1,223
Net loss															$ 0	$ 0	0	0	(2,578)	0	(2,578)
Foreign currency translation															0	0	0	0	0	(17)	(17)
Preferred stock dividends															0	0	0	0	(688)	0	(688)
Stock-based compensation															$ 0	$ 0	183	0	0	0	183
Stock offering (in shares)															0	27
Stock offering															$ 0	$ 642	0				642
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)															15,704	1,250
Balances (in shares)															15,705,000	1,683,000
Balances (in shares) at Jan. 31, 2022															15,705,000	1,683,000
Balances at Jan. 31, 2022															$ 157	$ 37,779	128,926	(16,862)	(117,856)	(1,881)	30,263
Net loss															0	0	0	0	(2,419)	0	(2,419)
Foreign currency translation															$ 0	$ 0	0	0	0	(3)	(3)
Restricted stock issued (in shares)															10,000	0
Restricted stock issued															$ 0	$ 0	0	0	0	0	0
Restricted stock surrendered for tax withholding															0	0	0	(1)	0	0	(1)
Preferred stock dividends															0	0	0	0	(947)	0	(947)
Stock-based compensation															$ 0	$ 0	236	0	0	0	236
Balances (in shares) at Apr. 30, 2022															15,715,000	1,683,000
Balances at Apr. 30, 2022															$ 157	$ 37,779	129,162	(16,863)	(121,222)	(1,884)	27,129
Balances (in shares) at Jan. 31, 2022															15,705,000	1,683,000
Balances at Jan. 31, 2022															$ 157	$ 37,779	128,926	(16,862)	(117,856)	(1,881)	30,263
Net loss																					(9,498)
Balances (in shares) at Oct. 31, 2022															15,721,000	1,683,000
Balances at Oct. 31, 2022															$ 157	$ 37,779	129,450	(16,863)	(128,301)	33	22,255
Balances (in shares)															15,715,000	1,683,000
Balances (in shares) at Apr. 30, 2022															15,715,000	1,683,000
Balances at Apr. 30, 2022															$ 157	$ 37,779	129,162	(16,863)	(121,222)	(1,884)	27,129
Net loss															0	0	0	0	(1,920)	0	(1,920)
Foreign currency translation															$ 0	$ 0	0	0	0	300	300
Restricted stock issued (in shares)															5,000	0
Restricted stock issued															$ 0	$ 0	0	0	0	0	0
Stock-based compensation															$ 0	$ 0	152	0	0	0	152
Balances (in shares) at Jul. 31, 2022															15,720,000	1,683,000
Balances at Jul. 31, 2022															$ 157	$ 37,779	129,314	(16,863)	(123,142)	(1,584)	25,661
Balances (in shares)															15,720,000	1,683,000
Net loss															$ 0	$ 0	0	0	(5,159)	0	(5,159)
Foreign currency translation															$ 0	$ 0	0	0	0	1,617	1,617
Restricted stock issued (in shares)															1,000	0
Restricted stock issued															$ 0	$ 0	0	0	0	0	0
Stock-based compensation															$ 0	$ 0	136	0	0	0	136
Balances (in shares) at Oct. 31, 2022															15,721,000	1,683,000
Balances at Oct. 31, 2022															$ 157	$ 37,779	$ 129,450	$ (16,863)	$ (128,301)	$ 33	$ 22,255
Balances (in shares)															15,721,000	1,683,000