CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 49,565	$ 53,207
Accounts receivable, net	154,633	144,689
Contract assets	23,639	25,572
Inventories, net	148,909	144,350
Prepaid expenses and other current assets	9,047	11,638
Income tax receivable	3,149	997
Total current assets	388,942	380,453
Property, plant and equipment, net	93,867	95,840
Goodwill	48,472	48,485
Intangible assets, net	22,046	24,370
Operating lease right-of-use assets	20,306
Deferred income taxes	2,237	1,833
Other assets	2,423	4,615
Total assets	578,293	555,596
Current liabilities:
Accounts payable	113,827	107,282
Line of credit	95,000	101,500
Accrued compensation	36,337	33,965
Accrued sales discounts, rebates and royalties	8,676	9,574
Accrued income taxes	517	3,524
Other accrued liabilities	36,087	24,011
Total current liabilities	290,444	279,856
Long-term liabilities:
Operating lease obligations	16,403
Contingent consideration	4,429	8,435
Deferred income taxes	4,486	930
Income tax payable	1,647	1,647
Other long-term liabilities	13	1,768
Total liabilities	317,422	292,636
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; 24,042,791 and 23,932,703 shares issued on June 30, 2019 and December 31, 2018, respectively	240	239
Paid-in capital	281,583	276,103
Treasury stock, at cost, 10,163,559 and 10,116,459 shares on June 30, 2019 and December 31, 2018, respectively	(277,293)	(275,889)
Accumulated other comprehensive income (loss)	(20,381)	(20,281)
Retained earnings	276,722	282,788
Total stockholders' equity	260,871	262,960
Total liabilities and stockholders' equity	$ 578,293	$ 555,596