pre_text: Stock repurchases (1) On March 15, 2019, the Company announced that the Board of Directors extended the expiration date of the current stock repurchase program to June 30, 2020 and increased the amount of common stock the Company is authorized to repurchase by $60 million.
table: 2019 2018 2017
table: (in thousands) Shares Amount Shares Amount Shares Amount
table: January 1, $6,620 $34,892 $39,385
table: Authorizations (1) $60,000 $27,003 $ -
table: Repurchases (333) $(21,136) (1,001) $(55,275) (99) $(4,493)
table: December 31, $45,484 $6,620 $34,892
question: Analyse this data from a financial earnings document. What is the average stock repurchases as at January 1, 2017 and 2018?