CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 30, 2023	Jan. 31, 2023
CURRENT ASSETS
Cash and cash equivalents	$ 195,947	$ 173,947
Short-term investments	90,614	151,511
Available-for-sale securities	30,376
Accounts receivable, net	60,774	50,132
Contract assets	4,914	24,778
Other current assets	42,376	38,334
TOTAL CURRENT ASSETS	425,001	438,702
Property, plant and equipment, net	10,665	10,430
Goodwill	28,033	28,033
Intangible assets, net	2,511	2,609
Deferred taxes, net	3,606	3,689
Right-of-use and other assets	5,878	6,024
TOTAL ASSETS	475,694	489,487
CURRENT LIABILITIES
Accounts payable	36,334	56,375
Accrued expenses	44,755	49,867
Contract liabilities	111,308	96,261
TOTAL CURRENT LIABILITIES	192,397	202,503
Noncurrent liabilities	5,348	6,087
TOTAL LIABILITIES	197,745	208,590
COMMITMENTS AND CONTINGENCIES (see Notes 7 and 8)
STOCKHOLDERS' EQUITY
Preferred stock, par value $0.10 per share - 500,000 shares authorized; no shares issued and outstanding
Common stock, par value $0.15 per share - 30,000,000 shares authorized; 15,828,289 shares issued; 13,414,404 and 13,441,590 shares outstanding at April 30, 2023 and January 31, 2023, respectively	2,374	2,374
Additional paid-in capital	161,347	162,208
Retained earnings	206,584	207,832
Less treasury stock, at cost - 2,413,885 and 2,386,699 shares at April 30, 2023 and January 31, 2023, respectively	(89,883)	(88,641)
Accumulated other comprehensive loss	(2,473)	(2,876)
TOTAL STOCKHOLDERS' EQUITY	277,949	280,897
TOTAL EQUITY	277,949	280,897
TOTAL LIABILITIES AND EQUITY	$ 475,694	$ 489,487