Isramco, Inc. (Nasdaq:ISRL), USEC Inc. (NYSE:USU) and Graham Corp. (AMEX:GHM) are among the biggest percentage gainers in Thursday's trading among companies with market capitalizations under $750 million.

BioMimetic Therapeutics, Inc. (Nasdaq:BMTI), Rand Logistics Inc. (Nasdaq:RLOGU) and China Technology Development Group Corp. (Nasdaq:CTDC) are also among the top small-cap percentage gainers.

Here are Thursday's biggest percentage gainers among small caps:

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