12. SUBSEQUENT EVENTS	6 Months Ended
Jun. 30, 2011
Schedule of Subsequent Events [Text Block]	12. SUBSEQUENT EVENTS In July 2011, our board of directors approved a new stock repurchase program authorizing the repurchase of up to 5.0 million shares of our common stock. At that time, we had 279,800 shares available for repurchase pursuant to a stock repurchase program authorized by our board of directors in 2006. The repurchases will be made in the open market at prevailing market prices or in privately negotiated transactions in accordance with all applicable securities laws and regulations. Such repurchases may occur from time to time and may be discontinued at any time. In August 2011 through the filing of this quarterly report, we repurchased an aggregate of 71,739 shares of our common stock in the open market pursuant to our 2006 board-approved stock repurchase program for approximately $0.6 million.

Describes disclosed significant events or transactions that occurred after the balance sheet date, but before the issuance of the financial statements. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 11

Name:	us-gaap_ScheduleOfSubsequentEventsTextBlock
Namespace Prefix:	us-gaap
Data Type:	us-types:textBlockItemType
Balance Type:	na
Period Type:	duration