CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 11,462	$ 3,565
Short-term investments	6,124	2,691
Accounts receivable	26,555	23,029
Inventories	67,641	82,307
Prepaid expenses and other current assets	7,480	3,173
Current Assets	119,262	114,765
Long-term investments	5,624	8,165
Property, plant and equipment	286,224	286,445
Less accumulated depreciation and amortization	163,319	161,098
Property, Plant and Equipment, Net	122,905	125,347
Other assets and deferred charges:
Patents and licenses	1,015	1,072
Goodwill	9,730	9,730
Other	1,818	1,746
Prepaid Expense and Other Assets	12,563	12,548
Total assets	260,354	260,825
Current liabilities:
Accounts payable and accrued liabilities	16,314	12,515
Accrued income and other taxes	1,223	106
Liabilities, Current	17,537	12,621
Other non-current liabilities	3,944	5,315
Stockholders' equity:
Common stock, par value $0.10 per share; authorized 10,000 shares, issued 3,420 shares	342	342
Additional paid-in capital	67,911	67,331
Retained earnings	377,176	381,754
Treasury shares,1,660 at June 30, 2024 and 1,660 at December 31, 2023, at cost	(206,556)	(206,538)
Total stockholders' equity	238,873	242,889
Total liabilities and stockholders' equity	$ 260,354	$ 260,825