Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jul. 31, 2024	Jan. 31, 2024
Allowance for credit losses	$ 332	$ 332
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	1,683,000	1,683,000
Preferred stock, shares outstanding (in shares)	1,683,000	1,683,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	40,000,000	40,000,000
Common stock, issued (in shares)	1,406,000	1,406,000
Common stock, outstanding (in shares)	1,406,000	1,406,000