CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 55,363	$ 57,153
Accounts receivable, net	139,708	129,433
Contract assets	7,612	9,685
Inventories	117,892	120,430
Prepaid expenses and other current assets	7,984	6,828
Income tax receivable	3,570	3,314
Total current assets	332,129	326,843
Property, plant and equipment, net	84,869	87,285
Goodwill	48,527	48,614
Intangible assets, net	19,973	19,710
Operating lease right-of-use assets	17,702	19,522
Deferred income taxes	4,899	5,564
Other assets	2,687	2,752
Total assets	510,786	510,290
Current liabilities:
Accounts payable	79,922	83,229
Line of credit	40,000	20,000
Accrued compensation	22,802	28,931
Accrued sales discounts, rebates and royalties	8,108	10,758
Accrued income taxes	597	3,535
Other accrued liabilities	33,725	33,057
Total current liabilities	185,154	179,510
Long-term liabilities:
Operating lease obligations	11,292	13,681
Contingent consideration	87	292
Deferred income taxes	2,248	1,913
Income tax payable	1,054	1,054
Other long-term liabilities	332	539
Total liabilities	200,167	196,989
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 5,000,000 shares authorized; none issued or outstanding	0	0
Common stock, $0.01 par value, 50,000,000 shares authorized; 24,581,162 and 24,391,595 shares issued on March 31, 2021 and December 31, 2020, respectively	246	244
Paid-in capital	306,226	302,084
Treasury stock, at cost, 10,808,525 and 10,618,002 shares on March 31, 2021 and December 31, 2020, respectively	(306,446)	(295,495)
Accumulated other comprehensive income (loss)	(21,390)	(18,522)
Retained earnings	331,983	324,990
Total stockholders' equity	310,619	313,301
Total liabilities and stockholders' equity	$ 510,786	$ 510,290