Consolidated Statements of Changes in Stockholders' Equity - 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] Retained Earnings [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] Retained Earnings [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, January 31, 2020 (in shares) at Jan. 31, 2020											14,097	994
Balances, January 31, 2020 at Jan. 31, 2020											$ 141	$ 22,104	$ 123,964	$ (16,860)	$ (77,310)	$ (4,387)	$ 47,652
Net loss															(20,306)		(20,306)
Foreign currency translation												0			0	31	31
Stock offering (in shares)	0	44				1,584	0
Stock offering		$ 1,000	$ 0	$ 0	$ 1,000	$ 16			$ 0	$ 3,585
Preferred stock dividends												0			(2,254)		(2,254)
Common stock offerings								$ 3,569
Stock-based compensation												$ 0	708		0		708
Balances, January 31, 2021 (in shares) at Jan. 31, 2021											15,681	1,038
Balances, January 31, 2021 at Jan. 31, 2021											$ 157	$ 23,104	128,241	(16,860)	(99,870)	(4,356)	30,416
Net loss												0			(15,085)		(15,085)
Foreign currency translation												0			0	2,475	2,475
Stock offering (in shares)	19	645
Stock offering		$ 14,675	$ 0	$ 0	$ 14,675				$ 0	$ 42		0	42
Preferred stock dividends												0			(2,901)		(2,901)
Stock-based compensation												0	632		0		632
Restricted stock forfeited for taxes												0		(2)	0		(2)
Restricted stock issued (in shares)											5
Restricted stock issued												$ 0			0		11
Restricted stock issued													11
Balances, January 31, 2021 (in shares) at Jan. 31, 2022											15,705	1,683
Balances, January 31, 2021 at Jan. 31, 2022											$ 157	$ 37,779	$ 128,926	$ (16,862)	$ (117,856)	$ (1,881)	$ 30,263