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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2018
Share-based Compensation [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, 2018 and 2017 were as follows:
| Six Months Ended June 30,
| 2018 |  | 2017
Risk-free interest rate | 2.81 | % |  | 1.96 | %
Expected volatility | 36.60 | % |  | 35.53 | %
Expected life (in years) | 4.29 |  |  | 4.22 |
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, 2018 and 2017:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Cost of product sales | $ | 11 |  |  | $ | 72 |  |  | $ | 82 |  |  | $ | 154 |
Cost of service sales | — |  |  | 1 |  |  | — |  |  | 1 |
Research and development | 149 |  |  | 170 |  |  | 319 |  |  | 359 |
Sales, marketing and support | 166 |  |  | 221 |  |  | 347 |  |  | 489 |
General and administrative | 413 |  |  | 388 |  |  | 844 |  |  | 809 |
| $ | 739 |  |  | $ | 852 |  |  | $ | 1,592 |  |  | $ | 1,812 |
Schedule of Accumulated Other Comprehensive Income (Loss) |
| Foreign Currency Translation |  | Unrealized Gain (Loss) on Available for Sale Marketable Securities |  | Interest Rate Swaps |  | Total Accumulated Other Comprehensive Loss
Balance, March 31, 2017 | $ | (16,050 | ) |  | $ | — |  |  | $ | (131 | ) |  | $ | (16,181 | )
Other comprehensive income (loss) before reclassifications | 2,440 |  |  | (3 | ) |  | (1 | ) |  | 2,436 |
Amounts reclassified from AOCI to Other income, net | — |  |  | — |  |  | 19 |  |  | 19 |
Net other comprehensive income (loss), June 30, 2017 | 2,440 |  |  | (3 | ) |  | 18 |  |  | 2,455 |
Balance, June 30, 2017 | $ | (13,610 | ) |  | $ | (3 | ) |  | $ | (113 | ) |  | $ | (13,726 | )
The balances for the six months ended June 30, 2018 and 2017 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, 2017 | $ | (11,247 | ) |  | $ | (1 | ) |  | $ | (69 | ) |  | $ | (11,317 | )
Other comprehensive (loss) income before reclassifications | (1,422 | ) |  | 1 |  |  | 10 |  |  | (1,411 | )
Amounts reclassified from AOCI to Other income, net | — |  |  | — |  |  | 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 | )
| Foreign Currency Translation |  | Unrealized Gain (Loss) on Available for Sale Marketable Securities |  | Interest Rate Swaps |  | Total Accumulated Other Comprehensive Loss
Balance, December 31, 2016 | $ | (16,651 | ) |  | $ | — |  |  | $ | (158 | ) |  | $ | (16,809 | )
Other comprehensive income (loss) before reclassifications | 3,041 |  |  | (3 | ) |  | 4 |  |  | 3,042 |
Amounts reclassified from AOCI to Other income, net | — |  |  | — |  |  | 41 |  |  | 41 |
Net other comprehensive income (loss), June 30, 2017 | 3,041 |  |  | (3 | ) |  | 45 |  |  | 3,083 |
Balance, June 30, 2017 | $ | (13,610 | ) |  | $ | (3 | ) |  | $ | (113 | ) |  | $ | (13,726 | )

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- Definition Tabular disclosure for share-based compensation plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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