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Revenues (Schedule of Net Product Revenues by Product) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenue from External Customer [Line Items] |  |  |
Revenues | $ 40,200,832 | $ 40,376,563 | $ 32,478,185
Acetadote |  |  |
Revenue from External Customer [Line Items] |  |  |
Revenues | 4,284,111 | 6,576,720 | 7,214,341
Omeclamox-Pak |  |  |
Revenue from External Customer [Line Items] |  |  |
Revenues | 623,297 | 1,761,868 | 2,536,027
Kristalose |  |  |
Revenue from External Customer [Line Items] |  |  |
Revenues | 12,055,625 | 11,455,805 | 15,898,760
Vaprisol |  |  |
Revenue from External Customer [Line Items] |  |  |
Revenues | 1,763,874 | 1,576,222 | 1,857,838
Caldolor |  |  |
Revenue from External Customer [Line Items] |  |  |
Revenues | 5,001,997 | 4,178,443 | 4,132,833
Ethyol |  |  |
Revenue from External Customer [Line Items] |  |  |
Revenues | 10,545,906 | 10,835,038 | 838,386
Totect |  |  |
Revenue from External Customer [Line Items] |  |  |
Revenues | 850,965 | 3,992,467 | 0
Vibativ |  |  |
Revenue from External Customer [Line Items] |  |  |
Revenues | $ 5,075,057 | $ 0 | $ 0

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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