The table below contains data on Fincorp Inc. The balance sheet items correspond to values at year-end 2015 and 2016, while the income statement items correspond to revenues or expenses during the year ending in either 2015 or 2016. All values are in thousands of dollars.

	2015			2016
Revenue	$	4,200		$	4,300
Cost of goods sold		1,800			1,900
Depreciation		490			510
Inventories		350			380
Administrative expenses		580			630
Interest expense		240			240
Federal and state taxes*		340			360
Accounts payable		310			345
Accounts receivable		430			460
Net fixed assets		6,000			6,740
Long-term debt		1,900			2,340
Notes payable		990			510
Dividends paid		400			400
Cash and marketable securities		880			330

* Taxes are paid in their entirety in the year that the tax obligation is incurred.

Net fixed assets are fixed assets net of accumulated depreciation since the asset was installed.

What was the change in net working capital during the year?