Overstock.com CEO Patrick Byrne says Bitcoin holders have boosted his company's bottom line as a reward for his decision earlier this year to become the first major retailer to accept the digital currency.

Reached by phone by Business Insider Tuesday, Byrne confirmed a report from Reuters' Gertrude Chavez-Dreyfuss that Bitcoin sales had exceeded $2 million since the Utah-based company began accepting the  cryptocurrency in January. He added that he expected up to $8 million in total sales for the year, and forecast Bitcoin revenues would be responsible for $0.04 in earnings per share.

Byrne told Chavez-Dreyfuss he expects total 2014 earnings attributable to shares to reach $0.75-$0.89. In 2013 the company had diluted full-year earnings attributable to common shares of $3.64.

The average daily sales clip has now reached $15,000 a day, or $300,0000 per month, he said, though that rate was only recently achieved. 

"What I get at conferences is, 'I switched my purchases to you online as a show of support,' " he told BI. "That’s what I get in the Bitcoin community. It's become part of the Bitcoin ethic to go and buy something on Overstock.com."

"We’re associated with Bitcoin at this point," he added. 

Almost 90% of Overstock's Bitcoin shoppers are male, but they're often buying products like bedding or furniture more regularly purchased by women, Byrne said. The average size of a Bitcoin order is $240 versus $165 for regular items. 

Overstock saw $330 million in revenues in its quarter ended July 28, and that there is no plan to breakout Bitcoin volumes in quarterly filings — at 1/4 of 1%, the overall amount remains insignificant to topline data.

"There's a ramp to it," he said.

Besides Overstock, 2014 has also seen Dell, DirecTV, Newegg and Reddit announce they would accept Bitcoin payments.

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