The beginning PPE balance of Hawkeye Games Inc. is $$22$K$.$ In the year, it sold equipment with a book value of $$5$K$.$ The ending balance of net PPE is $$12$K$.$ What is the ending balance of accumulated depreciation $($in thousands$)?[$In thousands means: if the answer you calculate is $4$K or $4000,$ fill in the blank with $4.]$