CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jan. 31, 2023	Jan. 31, 2022
CURRENT ASSETS
Cash and cash equivalents	$ 173,947	$ 350,472
Short-term investments	151,511	90,026
Accounts receivable, net	50,132	26,978
Contract assets	24,778	4,904
Other current assets	38,334	34,904
TOTAL CURRENT ASSETS	438,702	507,284
Property, plant and equipment, net	10,430	10,460
Goodwill	28,033	28,033
Other purchased intangible assets, net	2,609	3,322
Deferred taxes, net	3,689	457
Right-of-use and other assets	6,024	4,029
TOTAL ASSETS	489,487	553,585
CURRENT LIABILITIES
Accounts payable	56,375	41,822
Accrued expenses	49,867	53,315
Contract liabilities	96,261	127,890
TOTAL CURRENT LIABILITIES	202,503	223,027
Noncurrent liabilities	6,087	4,963
TOTAL LIABILITIES	208,590	227,990
COMMITMENTS AND CONTINGENCIES (see Notes 10 and 11)
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 and 15,788,673 shares issued at January 31, 2023 and 2022, respectively; 13,441,590 and 15,257,688 shares outstanding at January 31, 2023 and 2022, respectively	2,374	2,368
Additional paid-in capital	162,208	158,190
Retained earnings	207,832	188,690
Less treasury stock, at cost - 2,386,699 and 530,985 shares at January 31, 2023 and 2022, respectively	(88,641)	(20,405)
Accumulated other comprehensive loss	(2,876)	(2,451)
TOTAL STOCKHOLDERS' EQUITY	280,897	326,392
Non-controlling interest		(797)
TOTAL EQUITY	280,897	325,595
TOTAL LIABILITIES AND EQUITY	$ 489,487	$ 553,585