CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 30, 2022	Jan. 31, 2022
CURRENT ASSETS
Cash and cash equivalents	$ 192,255	$ 350,472
Short-term investments	175,229	90,026
Accounts receivable, net	36,047	26,978
Contract assets	6,880	4,904
Other current assets	37,180	34,904
TOTAL CURRENT ASSETS	447,591	507,284
Property, plant and equipment, net	9,936	10,460
Goodwill	28,033	28,033
Other purchased intangible assets, net	3,175	3,322
Right-of-use, deferred tax and other assets	4,075	4,486
TOTAL ASSETS	492,810	553,585
CURRENT LIABILITIES
Accounts payable	39,942	41,822
Accrued expenses	39,365	53,315
Contract liabilities	106,967	127,890
TOTAL CURRENT LIABILITIES	186,274	223,027
Other noncurrent liabilities	4,523	4,963
TOTAL LIABILITIES	190,797	227,990
COMMITMENTS AND CONTINGENCIES
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; 15,827,772 and 15,788,673 shares issued at April 30, 2022 and January 31, 2022, respectively; 14,585,908 and 15,257,688 shares outstanding at April 30, 2022 and January 31, 2022, respectively	2,374	2,368
Additional paid-in capital	159,170	158,190
Retained earnings	192,463	188,690
Less treasury stock, at cost - 1,241,864 and 530,985 shares at April 30, 2022 and January 31, 2022, respectively	(47,482)	(20,405)
Accumulated other comprehensive loss	(3,715)	(2,451)
TOTAL STOCKHOLDERS' EQUITY	302,810	326,392
Non-controlling interest	(797)	(797)
TOTAL EQUITY	302,013	325,595
TOTAL LIABILITIES AND EQUITY	$ 492,810	$ 553,585