15 Inventories

	2015	2016
CHF 1,000
Raw materials, semi-finished and finished goods	58,430	63,477
Allowance for slow-moving inventories	(10,268)	(10,458)
Work in progress	3,273	2,340
Capitalized customer-specific development costs	123,867	113,050

Balance at December 31	175,302	168,409

Decrease	(2,509)	(9,375)
Acquisition through business combination	3,794	2,481
Translation differences	(1,160)	1
Total change compared with previous year	125	(6,893)

Amount of write-offs due to slow-moving inventories charged to the statement of profit or loss	2,042	2,564