SEC Filings
| Filing | Description | Date Filed  |
Size | View | ||||
|---|---|---|---|---|---|---|---|---|
| 8-K | current report | May 14, 2012 | 65.5 KB |
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| 8-K | current report | May 10, 2012 | 90.2 KB |
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| 10-Q | quarterly report | May 10, 2012 | 387.3 KB |
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| DEF 14A | definitive proxy statement | Apr 30, 2012 | 690.3 KB |
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| S-8 | registration statement | Apr 13, 2012 | 501.9 KB |
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| 4 | larsen, keith g | Apr 3, 2012 | 29.9 KB |
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| 4 | larsen, mark j | Apr 3, 2012 | 29.1 KB |
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| 4 | youngbauer, steven r | Apr 3, 2012 | 28.6 KB |
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| 8-K | current report | Mar 29, 2012 | 42.2 KB |
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| 8-K | current report | Mar 28, 2012 | 56.5 KB |
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| 4 | lorimer, r scott | Mar 26, 2012 | 27.4 KB |
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| 4 | danni, jerry w | Mar 26, 2012 | 25.2 KB |
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| 4 | heath, leo a | Mar 26, 2012 | 24.7 KB |
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| 4 | conrad, stephen volney | Mar 26, 2012 | 25.1 KB |
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| 4 | winters, allen swain | Mar 26, 2012 | 25.2 KB |
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| 8-K | current report | Mar 15, 2012 | 90.4 KB |
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| 10-K | annual report | Mar 14, 2012 | 1.8 MB |
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| SC 13G/A | amended statement of beneficial ownership | Feb 13, 2012 | 27.4 KB |
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| SC 13G/A | amended statement of beneficial ownership | Feb 1, 2012 | 19.5 KB |
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| 8-K | current report | Jan 31, 2012 | 64.3 KB |
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