CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 58,832	$ 74,302
Accounts receivable, net	143,893	139,198
Contract assets	6,493	12,579
Inventories	134,650	145,135
Prepaid expenses and other current assets	5,339	6,733
Income tax receivable	1,743	805
Total current assets	350,950	378,752
Property, plant and equipment, net	83,438	90,732
Goodwill	48,451	48,447
Intangible assets, net	19,187	19,830
Operating lease right-of-use assets	17,854	19,826
Deferred income taxes	4,082	4,409
Other assets	2,458	2,163
Total assets	526,420	564,159
Current liabilities:
Accounts payable	80,701	102,588
Line of credit	73,000	68,000
Accrued compensation	19,640	43,668
Accrued sales discounts, rebates and royalties	9,366	9,766
Accrued income taxes	8,425	6,989
Other accrued liabilities	31,117	35,445
Total current liabilities	222,249	266,456
Long-term liabilities:
Operating lease obligations	13,121	15,639
Contingent consideration	234	4,349
Deferred income taxes	2,871	1,703
Income tax payable	1,368	1,600
Other long-term liabilities	445	13
Total liabilities	240,288	289,760
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; 24,268,744 and 24,118,088 shares issued on June 30, 2020 and December 31, 2019, respectively	243	241
Paid-in capital	294,007	288,338
Treasury stock, at cost, 10,346,473 and 10,174,199 shares on June 30, 2020 and December 31, 2019, respectively	(284,222)	(277,817)
Accumulated other comprehensive income (loss)	(30,560)	(22,781)
Retained earnings	306,664	286,418
Total stockholders' equity	286,132	274,399
Total liabilities and stockholders' equity	$ 526,420	$ 564,159