JOINT FILING AGREEMENT
EXHIBIT 1
In accordance with Rule 13d-1(k) (1) (iii) under the Securities Exchange Act of 1934, as
amended, the persons named below agree to the joint filing on behalf of each of them of a Statement
on Schedule 13D dated April 30, 2008 (including amendments thereto) with respect to the Common
Stock of ▇▇▇▇▇▇ Corporation This Joint Filing Agreement shall be filed as an Exhibit to such
Statement.
Dated: April 30, 2008
| Prescott Group Capital Management, L.L.C. |
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| By: | /s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇ | |||
| ▇▇▇▇ ▇▇▇▇▇▇▇▇, Managing Member | ||||
| Prescott Group Aggressive Small Cap, L.P. By: Prescott Group Capital Management, L.L.C., its general partner |
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| By: | /s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇ | |||
| ▇▇▇▇ ▇▇▇▇▇▇▇▇, Managing Member | ||||
| Prescott Group Aggressive Small Cap II, L.P. By: Prescott Group Capital Management, L.L.C., its general partner |
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| By: | /s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇ | |||
| ▇▇▇▇ ▇▇▇▇▇▇▇▇, Managing Member | ||||
| ▇▇▇▇ ▇▇▇▇▇▇▇▇ |
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| By: | /s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇ | |||
| ▇▇▇▇ ▇▇▇▇▇▇▇▇ | ||||