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Stock-Based Compensation - Narrative (Details) |  |  |  |  |  |  |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended
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Jul. 07, 2017 $ / shares shares | Jun. 19, 2017 $ / shares shares | Apr. 01, 2017 $ / shares shares | Feb. 15, 2017 $ / shares shares | Feb. 07, 2017 $ / shares shares | Nov. 01, 2016 employee $ / shares shares | Apr. 01, 2016 $ / shares shares | Aug. 04, 2015 $ / shares shares | Aug. 11, 2017 $ / shares shares | Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2016 USD ($) shares
Compensation Expense |  |  |  |  |  |  |  |  |  |  |  |
Stock based compensation | $ |  |  |  |  |  |  |  |  |  |  | $ 1,279,807 | $ 1,264,266
Compensation cost related to non vested awards not yet recognized | $ |  |  |  |  |  |  |  |  |  | $ 1,211,197 | $ 1,211,197 |
Average remaining expense recognition period |  |  |  |  |  |  |  |  |  |  | 1 year |
Award Information and Activity |  |  |  |  |  |  |  |  |  |  |  |
Number of options outstanding (in shares) |  |  |  |  |  |  |  |  |  | 264,246 | 264,246 | 264,246
Number of options exercisable (in shares) |  |  |  |  |  |  |  |  |  | 264,246 | 264,246 |
Intrinsic value of options exercisable | $ |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 |
Weighted average exercise price (in usd per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 2.84 | $ 2.84 |
Weighted average remaining contractual term |  |  |  |  |  |  |  |  |  |  | 3 years 2 months 1 day |
Options forfeited and expired in period (in shares) |  |  |  |  |  |  |  |  |  |  | 0 |
Forfeited, expired or cancelled (in usd per share) | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 0.00 |
Granted in period |  |  |  |  |  |  |  |  |  |  | 0 | 0
Expected dividend yield |  |  |  |  |  |  |  |  |  |  | 0.00% |
Options |  |  |  |  |  |  |  |  |  |  |  |
Award Information and Activity |  |  |  |  |  |  |  |  |  |  |  |
Expected forfeiture rate |  |  |  |  |  |  |  |  |  |  | 0.00% |
Restricted stock units | Board of Directors |  |  |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Equity instruments other than options, grants in period (in shares) |  |  |  |  |  | 22,936 | 63,160 |  |  |  |  |
Granted (in usd per share) | $ / shares |  |  |  |  |  | $ 1.02 | $ 1.90 |  |  |  |  |
Number of new members receiving grants in period | employee |  |  |  |  |  | 2 |  |  |  |  |  |
Restricted stock units | Employee |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Option and restricted stock unit vesting period |  |  |  |  | 3 years |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Equity instruments other than options, grants in period (in shares) | 20,000 |  |  | 20,520 | 186,828 |  |  |  |  |  |  |
Granted (in usd per share) | $ / shares | $ 1.02 |  |  | $ 1.62 | $ 1.65 |  |  |  |  |  |  |
Restricted stock units | Board of Directors |  |  |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Equity instruments other than options, grants in period (in shares) |  |  | 116,280 |  |  |  |  |  |  |  |  |
Granted (in usd per share) | $ / shares |  |  | $ 1.29 |  |  |  |  |  |  |  |  |
Service based RSUs | Employee |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Option and restricted stock unit vesting period |  |  |  |  |  |  |  | 3 years |  |  |  |
Service based RSUs | Share-based Compensation Award, Tranche One | Employee |  |  |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Percentage of award vesting rights |  |  |  |  |  |  |  | 25.00% |  |  |  |
Service based RSUs | Share-based Compensation Award, Tranche Two | Employee |  |  |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Percentage of award vesting rights |  |  |  |  |  |  |  | 25.00% |  |  |  |
Service based RSUs | Share-based Compensation Award, Tranche Three | Employee |  |  |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Percentage of award vesting rights |  |  |  |  |  |  |  | 50.00% |  |  |  |
Restricted Stock Units (RSUs) and Performance Restricted Stock Units (RSUs) | Employee |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Option and restricted stock unit vesting period | 3 years | 3 years |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Equity instruments other than options, grants in period (in shares) |  | 125,000 |  |  |  |  |  | 965,500 |  |  |  |
Granted (in usd per share) | $ / shares |  | $ 1.04 |  |  |  |  |  | $ 3.03 |  |  |  |
Shares issued in period (in shares) |  |  |  |  |  |  |  |  | 294,152 |  |  |
Weighted average fair value (in usd per share) | $ / shares |  |  |  |  |  |  |  |  | $ 1.00 |  |  |
Restricted Stock Units (RSUs) and Performance Restricted Stock Units (RSUs) | Former NetSeer Employees |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Option and restricted stock unit vesting period |  | 3 years |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Equity instruments other than options, grants in period (in shares) |  | 400,000 |  |  |  |  |  |  |  |  |  |
Equity instruments other than options, canceled in period (in shares) |  |  |  |  |  |  |  |  |  | 92,487 |  |
Restricted Stock Units- Performance Based | Share-based Compensation Award, Tranche One | Employee |  |  |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Percentage of award vesting rights |  |  |  |  |  |  |  | 33.33% |  |  |  |
Restricted Stock Units- Performance Based | Share-based Compensation Award, Tranche Two | Employee |  |  |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Percentage of award vesting rights |  |  |  |  |  |  |  | 33.33% |  |  |  |
Restricted Stock Units- Performance Based | Share-based Compensation Award, Tranche Three | Employee |  |  |  |  |  |  |  |  |  |  |  |
Significant Grants and Cancellations |  |  |  |  |  |  |  |  |  |  |  |
Percentage of award vesting rights |  |  |  |  |  |  |  | 33.33% |  |  |  |
Maximum | Options |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Option and restricted stock unit vesting period |  |  |  |  |  |  |  |  |  |  | 3 years |

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- Definition Unrecognized cost of unvested share-based compensation awards. + 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 (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + 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)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + 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)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + 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)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 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 (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Number of share instruments newly issued under a share-based compensation plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Percentage of vesting of share-based compensation awards. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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