The table below contains data on Fincorp Inc. The balance sheet items correspond to values at year-end 2018 and 2019, while the income statement items correspond to revenues or expenses during the year ending in either 2018 or 2019. All values are in thousands of dollars.

	2018			2019
Revenue	$	5,700		$	5,800
Cost of goods sold		1,600			1,700
Depreciation		430			450
Inventories		350			405
Administrative expenses		500			550
Interest expense		120			120
Federal and state taxes*		920			940
Accounts payable		260			335
Accounts receivable		450			490
Net fixed assets		5,800			6,490
Long-term debt		2,000			2,320
Notes payable		820			490
Dividends paid		350			350
Cash and marketable securities		760			370

* 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?