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Stockholder's Equity (Tables) | 6 Months Ended
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Jun. 30, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract] |
Schedule of share-based payment award, stock options, valuation assumptions | The weighted average assumptions utilized to determine the fair value of options granted during the six months ended June 30, 2019 and 2018 were as follows:
| Six Months Ended June 30,
| 2019 |  | 2018
Risk-free interest rate | 1.93 | % |  | 2.81 | %
Expected volatility | 36.95 | % |  | 36.60 | %
Expected life (in years) | 4.27 |  |  | 4.29 |
Dividend yield | 0 | % |  | 0 | %
Schedule of share-based compensation, activity | The following table presents stock-based compensation expense, including expense for the ESPP, in the Company's consolidated statements of operations for the three and six months ended June 30, 2019 and 2018:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Cost of product sales | $ | 61 |  |  | $ | 11 |  |  | $ | 102 |  |  | $ | 82 |
Research and development | 196 |  |  | 149 |  |  | 368 |  |  | 319 |
Sales, marketing and support | 212 |  |  | 166 |  |  | 394 |  |  | 347 |
General and administrative | 564 |  |  | 413 |  |  | 1,043 |  |  | 844 |
| $ | 1,033 |  |  | $ | 739 |  |  | $ | 1,907 |  |  | $ | 1,592 |
Schedule of accumulated other comprehensive income (loss) | The balances for the three months ended June 30, 2019 and 2018 are as follows:
| Foreign Currency Translation |  | Unrealized Gain (Loss) on Available for Sale Marketable Securities |  | Interest Rate Swaps |  | Total Accumulated Other Comprehensive Loss
Balance, March 31, 2019 | $ | (13,640 | ) |  | $ | — |  |  | $ | (3 | ) |  | $ | (13,643 | )
Other comprehensive (loss) income before reclassifications | (1,332 | ) |  | — |  |  | 3 |  |  | (1,329 | )
Reclassified from AOCI | 11,483 |  |  | — |  |  | — |  |  | 11,483 |
Net other comprehensive income, June 30, 2019 | 10,151 |  |  | — |  |  | 3 |  |  | 10,154 |
Balance, June 30, 2019 | $ | (3,489 | ) |  | $ | — |  |  | $ | — |  |  | $ | (3,489 | )
| Foreign Currency Translation |  | Unrealized Gain (Loss) on Available for Sale Marketable Securities |  | Interest Rate Swaps |  | Total Accumulated Other Comprehensive Loss
Balance, March 31, 2018 | $ | (8,803 | ) |  | $ | — |  |  | $ | (47 | ) |  | $ | (8,850 | )
Other comprehensive (loss) income before reclassifications | (3,866 | ) |  | — |  |  | 3 |  |  | (3,863 | )
Reclassified from AOCI | — |  |  | — |  |  | 12 |  |  | 12 |
Net other comprehensive (loss) income, June 30, 2018 | (3,866 | ) |  | — |  |  | 15 |  |  | (3,851 | )
Balance, June 30, 2018 | $ | (12,669 | ) |  | $ | — |  |  | $ | (32 | ) |  | $ | (12,701 | )
The balances for the six months ended June 30, 2019 and 2018 are as follows:
| Foreign Currency Translation |  | Unrealized Gain (Loss) on Available for Sale Marketable Securities |  | Interest Rate Swaps |  | Total Accumulated Other Comprehensive Loss
Balance, December 31, 2018 | $ | (14,720 | ) |  | $ | — |  |  | $ | (11 | ) |  | $ | (14,731 | )
Other comprehensive (loss) income before reclassifications | (252 | ) |  | — |  |  | 3 |  |  | (249 | )
Reclassified from AOCI | 11,483 |  |  | — |  |  | 8 |  |  | 11,491 |
Net other comprehensive income, June 30, 2019 | 11,231 |  |  | — |  |  | 11 |  |  | 11,242 |
Balance, June 30, 2019 | $ | (3,489 | ) |  | $ | — |  |  | $ | — |  |  | $ | (3,489 | )
| Foreign Currency Translation |  | Unrealized (Loss) Gain on Available for Sale Marketable Securities |  | Interest Rate Swaps |  | Total Accumulated Other Comprehensive Loss
Balance, December 31, 2017 | $ | (11,247 | ) |  | $ | (1 | ) |  | $ | (69 | ) |  | $ | (11,317 | )
Other comprehensive (loss) income before reclassifications | (1,422 | ) |  | 1 |  |  | 10 |  |  | (1,411 | )
Reclassified from AOCI | — |  |  | — |  |  | 27 |  |  | 27 |
Net other comprehensive (loss) income, June 30, 2018 | (1,422 | ) |  | 1 |  |  | 37 |  |  | (1,384 | )
Balance, June 30, 2018 | $ | (12,669 | ) |  | $ | — |  |  | $ | (32 | ) |  | $ | (12,701 | )

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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