CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ 13,120	$ (264)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	25	27
Stock-based compensation	419	453
Changes in operating assets and liabilities:
Accounts receivable	1,057	0
Prepaid expenses and other current assets	(120)	133
Accrued expenses	(1,465)	2,513
Other long-term assets	(1)	1
Accounts payable	1,700	(1,024)
Accounts payable - related parties	(63)	1
Other current liabilities	2	(28)
Other non-current liabilities	(17)	0
Accrued income taxes	238	0
Net cash provided by operating activities	14,895	1,812
Cash flows from investing activities:
Purchase of additional investment	0	(250)
Net cash provided by operating activities	127	0
Net cash provided by (used in) investing activities	127	(250)
Cash flows from financing activities:
Proceeds from Common share offering, net of issuance costs	10,385	0
Redemption of Series A Preferred shares	(13,777)	0
Proceeds from exercise of stock options	201	76
Net Cash Provided by Financing Activities	11,184	9,566
Net increase in cash and cash equivalents	26,206	11,128
Cash and cash equivalents - beginning	13,678	6,101
Cash and cash equivalents - ending	39,884	17,229
Supplemental disclosures of cash flow information:
Series A-1 warrant liability	3,313	0
Series A-1 Preferred Stock
Cash flows from financing activities:
Proceeds from sale of preferred shares, net of issuance costs	14,375	0
Supplemental disclosures of cash flow information:
Accretion of preferred stock to redemption value	3,634	0
Series A Preferred Stock
Cash flows from financing activities:
Proceeds from sale of preferred shares, net of issuance costs	0	9,490
Supplemental disclosures of cash flow information:
Accretion of preferred stock to redemption value	$ 291	$ 5,480