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Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 15,854 $ 21,457
Certificates of deposit 5,520 2,880
Investments held to maturity at amortized cost 2,955 6,077
Accounts receivable, net 53,418 50,338
Income tax receivable 4,971 1,643
Notes receivable 27 28
Inventories, net 70,467 70,786
Prepaid expenses and other 1,453 518
Total current assets 154,665 153,727
Property, plant and equipment:    
Land 2,794 2,233
Buildings 96,043 92,075
Machinery and equipment 205,464 184,316
Furniture and fixtures 14,747 13,714
Total property, plant and equipment 319,048 292,338
Less: Accumulated depreciation 157,927 149,963
Property, plant and equipment, net 161,121 142,375
Intangible assets, net 622 0
Goodwill 3,229 0
Note receivable 634 678
Total assets 320,271 296,780
Current liabilities:    
Revolving credit facility 0 0
Accounts payable 25,127 10,967
Dividends payable 8,400 0
Accrued liabilities 38,146 39,098
Total current liabilities 71,673 50,065
Deferred revenue 1,546 1,512
Deferred tax liabilities 8,415 7,977
Donations 200 0
Commitments and contingencies
Stockholders' equity:    
Preferred stock, $.001 par value, 5,000,000 shares authorized, no shares issued 0 0
Common stock, $.004 par value, 100,000,000 shares authorized, 52,290,064 and 52,422,801 issued and outstanding at March 31, 2018 and December 31, 2017, respectively 209 210
Additional paid-in capital 0 0
Retained earnings 238,228 237,016
Total stockholders' equity 238,437 237,226
Total liabilities and stockholders' equity $ 320,271 $ 296,780