Share repurchase programs are typically viewed positively by the market as they often indicate that the company believes its stock is undervalued and that it is confident in its current financial position. The expansion of Alpha Pro Tech's buyback program by $2 million could lead to a reduction in the number of shares outstanding, potentially increasing earnings per share and the stock price in the short term. However, the actual impact will depend on the market's perception of the company's long-term growth prospects and financial health.