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Condensed Consolidated Balance Sheets (Unaudited) (USD $) | Jun. 30, 2012 | Dec. 31, 2011
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Current assets: |  |
Cash and cash equivalents | $ 138,699,000 | $ 124,929,000
Restricted cash | 239,000 | 31,000
Short-term investments | 10,006,000 | 10,005,000
Accounts receivable, net | 97,375,000 | 87,351,000
Inventories: |  |
Finished goods | 24,868,000 | 29,009,000
Work in progress | 4,931,000 | 4,855,000
Raw materials | 28,023,000 | 25,642,000
Total inventories | 57,822,000 | 59,506,000
Supplies, prepaid items and other: |  |
Prepaid insurance | 2,963,000 | 5,953,000
Precious metals | 15,453,000 | 17,777,000
Supplies | 8,533,000 | 7,513,000
Fair value of derivatives and other | 42,000 | 53,000
Prepaid income taxes | 1,619,000 | 8,679,000
Other | 2,379,000 | 2,034,000
Total supplies, prepaid items and other | 30,989,000 | 42,009,000
Deferred income taxes | 3,505,000 | 4,275,000
Total current assets | 338,635,000 | 328,106,000
Property, plant and equipment, net | 179,009,000 | 164,547,000
Other assets: |  |
Investment in affiliate | 2,396,000 | 2,910,000
Goodwill | 1,724,000 | 1,724,000
Other, net | 6,332,000 | 4,722,000
Total other assets | 10,452,000 | 9,356,000
Total assets | 528,096,000 | 502,009,000
Current liabilities: |  |
Accounts payable | 51,002,000 | 57,891,000
Short-term financing | 2,270,000 | 5,646,000
Accrued and other liabilities | 25,407,000 | 28,677,000
Current portion of long-term debt | 4,764,000 | 4,935,000
Total current liabilities | 83,443,000 | 97,149,000
Long-term debt | 70,051,000 | 74,525,000
Noncurrent accrued and other liabilities | 16,310,000 | 15,239,000
Deferred income taxes | 23,595,000 | 21,826,000
Commitments and contingencies (Note 8) |  |
Stockholders' equity: |  |
Common stock, $.10 par value; 75,000,000 shares authorized, 26,679,530 shares issued (26,638,285 at December 31, 2011) | 2,668,000 | 2,664,000
Capital in excess of par value | 163,479,000 | 162,092,000
Retained earnings | 193,924,000 | 153,888,000
Stockholders equity including treasury stock | 363,071,000 | 321,644,000
Less treasury stock at cost: |  |
Common stock, 4,320,462 shares | 28,374,000 | 28,374,000
Total stockholders' equity | 334,697,000 | 293,270,000
Total Liabilities and Stockholders' equity | 528,096,000 | 502,009,000
Series B preferred stock |  |
Stockholders' equity: |  |
Convertible preferred stock | 2,000,000 | 2,000,000
Series D preferred stock |  |
Stockholders' equity: |  |
Convertible preferred stock | $ 1,000,000 | $ 1,000,000

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