CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 3,659,534	$ 13,468,188
Short-term investment securities	58,975,513	0
Accounts receivable, net	957,066	40,992
Inventory, net	3,282,537	3,092,686
Prepaid expenses and other assets	746,805	195,569
Total current assets	67,621,455	16,797,435
Machinery and equipment, net	3,316,047	2,434,663
Other assets:
Intangible assets, net	7,435,411	7,389,946
Investment	1,366,493	1,020,313
Total other assets	8,801,904	8,410,259
Total assets	79,739,406	27,642,357
Current liabilities:
Current portion of note payable	0	307,938
Accounts payable	2,080,691	1,340,156
Accrued expenses	1,987,675	1,401,566
Accrued severance	0	199,657
Deferred income	28,350	0
Warrant liability	216,490	0
Total current liabilities	4,313,206	3,249,317
Warrant liability	0	58,681
Total liabilities	4,313,206	3,307,998
Commitments and contingencies (Note 17)
Shareholders' equity
Common stock value	1,236	907
Capital in excess of par value	166,592,536	102,471,907
Accumulated deficit	(91,167,572)	(78,138,455)
Total shareholders' equity	75,426,200	24,334,359
Total liabilities and shareholders' equity	$ 79,739,406	$ 27,642,357

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).

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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.