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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts [Text Block] | Schedule II Valuation and Qualifying Accounts The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of customers to make required payments. This allowance is established using estimates formulated by the Company’s management based upon factors such as the composition of the accounts receivable aging, historical bad debt, changes in payments patterns, customer creditworthiness, and current economic trends. The Company maintains an allowance for the distributors’ ship and debit credits relating to the sell-through of the Company’s products. This reserve is established using the Company’s historical ship and debit amounts and levels of inventory in the distributor channels. Following is a summary of the activity in the allowance for doubtful accounts and allowance for ship and debit credits:
(in thousands) | Balance at Beginning of Period |  | Charged to Costs and Expenses |  | Deductions(1) |  | Balance at End of Period
Allowance for doubtful accounts: |  |  |  |  |  |  |
Year ended December 31, 2014 | $ | 120 |  |  | $ | 135 |  |  | $ | (64 | ) |  | $ | 191 |
Year ended December 31, 2015 | $ | 191 |  |  | $ | 133 |  |  | $ | (6 | ) |  | $ | 318 |
Year ended December 31, 2016 | $ | 318 |  |  | $ | 207 |  |  | $ | — |  |  | $ | 525 |
_______________ (1) Deductions relate to amounts written off against the allowance for doubtful accounts.
(in thousands) | Balance at Beginning of Period |  | Charged to Costs and Expenses |  | Deductions(2) |  | Balance at End of Period
Allowance for ship and debit credits: |  |  |  |  |  |  |
Year ended December 31, 2014 | $ | 28,696 |  |  | $ | 177,260 |  |  | $ | (178,531 | ) |  | $ | 27,425 |
Year ended December 31, 2015 | $ | 27,425 |  |  | $ | 195,669 |  |  | $ | (188,679 | ) |  | $ | 34,415 |
Year ended December 31, 2016 | $ | 34,415 |  |  | $ | 262,501 |  |  | $ | (258,841 | ) |  | $ | 38,075 |
_______________ (2) Deductions relate to ship and debit credits issued which adjust the sell-in price from the standard distribution price to the pre-approved lower price. Refer to Note 2, Summary of Significant Accounting Policies, for the Company’s revenue recognition policy, including the Company’s accounting for ship and debit claims.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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