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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 58,788 $ 41,393
Marketable securities   35,354
Accounts receivable, net 14,458 17,061
Inventories, net 28,008 30,712
Prepaid expenses and other 2,245 2,110
Total current assets 103,499 126,630
Other assets:    
Note receivable from affiliate 7,900 10,600
Goodwill 23,742 23,742
Other noncurrent assets 704 769
Total other assets 32,346 35,111
Property and equipment:    
Land 5,390 5,390
Buildings 23,262 23,239
Equipment 75,334 74,315
Construction in progress 527 676
Gross property and equipment 104,513 103,620
Less accumulated depreciation 80,252 77,757
Net property and equipment 24,261 25,863
Total assets 160,106 187,604
Current liabilities:    
Accounts payable and accrued liabilities 13,074 15,745
Income taxes payable to affiliate 694 1,460
Total current liabilities 13,768 17,205
Noncurrent liabilities:    
Deferred income taxes 972 1,509
Other 36 41
Total noncurrent liabilities 1,008 1,550
Stockholders' equity:    
Preferred stock 0 0
Additional paid-in capital 53,396 53,275
Retained earnings 91,811 115,457
Accumulated other comprehensive loss - unrealized loss on marketable securities   (6)
Total stockholders' equity 145,330 168,849
Total liabilities and stockholders' equity 160,106 187,604
Commitments and contingencies (Note 8)
Class A Common Stock    
Stockholders' equity:    
Class A common stock $ 123 $ 123