You observe a company with the following items on the balance sheet (in thousands): Cash and equivalents 2018: $24 Cash and equivalents 2017: $19 Inventory 2018: $32 Inventory 2017: $38 Accounts receivable 2018: $148 Accounts receivable 2017: $131 Property. Plant, and Equipment 2018: $1.427 Property, Plant, and Equipment 2017: $1,304 Current Liabilities 2018: $263 Current Liabilities 2017: $287 Long-term debt 2018: $1,075 Long-term debt 2017: $936 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)