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Recent Accounting Pronouncements Details (Tables) | 9 Months Ended
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Sep. 30, 2018
Accounting Policies [Abstract] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] | The cumulative effect of applying the new revenue standard, primarily relating to financing components of contracts executed in prior periods and estimates of variable consideration for sales and usage based royalty agreements executed in prior periods, was as follows (in thousands):
|  | Balance at December 31, 2017 |  | Adjustments Due to ASC 606 |  | Balance at January 1, 2018
Balance Sheets: |  |  |  |  |  |
Accounts receivable |  | $ | 153 |  |  | $ | 4,542 |  |  | $ | 4,695 |
Royalties and contingent legal fees payable |  | 1,601 |  |  | 1,728 |  |  | 3,329 |
Accumulated deficit |  | (320,018 | ) |  | 2,506 |  |  | (317,512 | )
Noncontrolling interests |  | 1,358 |  |  | 308 |  |  | 1,666 |
The impact of the adoption of the new accounting standard on the condensed consolidated balance sheet and statement of operations was as follows (in thousands):
|  | September 30, 2018
|  | Balance as Reported |  | Balance under Legacy GAAP |  | Effect of Change
Balance Sheets: |  |  |  |  |  |
Accounts receivable |  | $ | 10,572 |  |  | $ | 7,250 |  |  | $ | 3,322 |
Royalties and contingent legal fees payable |  | 7,193 |  |  | 6,011 |  |  | 1,182 |
|  | Three Months Ended September 30, 2018
|  | Balance as Reported |  | Balance under Legacy GAAP |  | Effect of Change
Statements of Operations: |  |  |  |  |  |
Revenues |  | $ | 13,725 |  |  | $ | 15,798 |  |  | $ | (2,073 | )
Inventor royalties |  | 1,181 |  |  | 1,050 |  |  | 131 |
Contingent legal fees |  | 2,949 |  |  | 3,598 |  |  | (649 | )
|  | Nine Months Ended September 30, 2018
|  | Balance as Reported |  | Balance under Legacy GAAP |  | Effect of Change
Statements of Operations: |  |  |  |  |  |
Revenues |  | $ | 82,303 |  |  | $ | 83,583 |  |  | $ | (1,280 | )
Inventor royalties |  | $ | 24,166 |  |  | $ | 23,718 |  |  | $ | 448 |
Contingent legal fees |  | $ | 19,745 |  |  | $ | 20,339 |  |  | $ | (594 | )

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22580-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22499-107794 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22583-107794 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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