You observe a company with the following items on the balance sheet (in thousands): Cash and equivalents 2018: $21 Cash and equivalents 2017: $10 Inventory 2018: $37 Inventory 2017: $26 Accounts receivable 2018: $150 Accounts receivable 2017: $89 Property, Plant, and Equipment 2018: $3 Property, Plant, and Equipment 2017: $1,083 Current Liabilities 2018: $241 Current Liabilities 2017: $221 Long-term debt 2018: $1,547 Long-term debt 2017: $1,389 What is the change in net working capital for the firm for these years. Answer in thousands (the same as how the numbers are presented).