CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 15,376	$ 30,810
Accounts receivable, net of allowance for doubtful accounts of $2,752 and $2,773, respectively	79,782	71,932
Inventories	143,304	124,214
Prepaid expenses and other	17,354	12,240
Total current assets	255,816	239,196
Property, plant and equipment	192,161	191,022
Less - accumulated depreciation	(71,682)	(68,944)
Property, plant and equipment, net	120,479	122,078
Goodwill	140,234	141,266
Purchased intangible assets, net	242,568	255,576
Deferred tax assets	8,379	6,930
Other assets	96,448	99,366
Total assets	863,924	864,412
Current liabilities:
Accounts payable	48,114	40,276
Accrued expenses	14,793	13,585
Accrued income taxes	834	9
Accrued employee compensation and benefits	9,208	9,766
Contract liabilities	26,952	21,052
Current portion of long-term debt	15,000	15,000
Other current liabilities	6,287	6,126
Total current liabilities	121,188	105,814
Long-term debt	128,710	132,425
Deferred tax liabilities	937	2,202
Other long-term liabilities	64,398	66,250
Total liabilities	315,233	306,691
Commitments and contingencies (Note 12)
Redeemable noncontrolling interest	197,196	197,196
Stockholders’ equity
Preferred stock, $0.05 par value; 4,000,000 shares authorized; no issued and outstanding shares	0	0
Common stock, $0.05 par value; 25,000,000 shares authorized; 20,084,272 and 19,920,829 shares issued, respectively	1,004	996
Additional paid-in capital	296,774	294,515
Retained earnings	102,026	111,031
Other cumulative comprehensive loss	(27,742)	(26,538)
Treasury stock, at cost, and company stock held for deferred compensation, at par; 587,188 and 570,415 shares, respectively	(20,567)	(19,479)
Total stockholders’ equity	351,495	360,525
Total liabilities, redeemable noncontrolling interest, and stockholders’ equity	$ 863,924	$ 864,412