Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 23,433,297	$ 3,310,787
Accounts receivable (net of allowance for bad debts of $20,000 at September 30, 2017 and December 31, 2016)	333,057	143,692
Inventory	1,586,629	1,789,578
Prepaid expenses and other current assets	252,473	476,624
Total current assets	25,605,456	5,720,681
Property and equipment, net	195,514	200,720
Goodwill	6,397,671
Other intangible assets (net of accumulated amortization of $44,777 at September 30, 2017)	21,842,409
Other assets	1,142,304	1,119,405
Total assets	55,183,354	7,040,806
Current liabilities:
Accounts payable	706,520	1,311,706
Accrued expenses	3,427,245	2,751,415
Total current liabilities	4,133,765	4,063,121
Common stock warrant liability	2,159	39,119
Total liabilities	4,135,924	4,102,240
Commitments and contingencies (Note 5)
Stockholders' equity:
Common stock, $0.01 par value; 300,000,000 shares authorized; 12,208,671 and 2,736,621 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively	122,087	27,366
Additional paid-in capital	376,057,278	303,852,582
Accumulated deficit	(325,142,047)	(300,941,382)
Total stockholders' equity	51,047,430	2,938,566
Total liabilities and stockholders' equity	55,183,354	7,040,806
Series A convertible preferred stock
Stockholders' equity:
Preferred stock, 5,000,000 shares authorized:
Conditional convertible preferred stock
Stockholders' equity:
Preferred stock, 5,000,000 shares authorized:	10,002
Series B convertible preferred stock
Stockholders' equity:
Preferred stock, 5,000,000 shares authorized:	$ 110

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.