17 Inventories

	31.12.2018	31.12.2019
CHF 1,000
Raw materials, semi-finished and finished goods	90,813	95,454
Allowance for slow-moving inventories	(12,389)	(15,225)
Work in progress	4,639	4,837
Capitalized customer-specific development costs	88,646	66,881

Total inventories	171,709	151,947

Increase/(decrease)	7,944	(21,828)
Acquisition through business combination	3,892	3,225
Reclassifications	101	–
Translation differences	(446)	(1,159)
Total change compared with previous year	11,491	(19,762)

Amount of write-offs due to slow-moving inventories charged to the statement of profit or loss	3,046	3,444