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Consolidated Statements of Cash Flows - USD ($)
 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Cash flows from operating activities:    
Net loss $ (19,932,566) $ (36,389,505)
Adjustments to reconcile net loss to net cash used in operating activities:    
Equity-based compensation expense 1,235,143 8,132,106
Depreciation and amortization 1,422,011 1,254,305
Change in acquisition-related contingent consideration 0 (4,800,000)
Impairment of intangible assets 0 9,400,000
Loss on disposal of assets 591,307 0
Bad debt recovery 0 (2,641)
Deferred income taxes 100,332 (3,656,730)
Accretion on marketable securities 0 33,054
Changes in operating assets and liabilities:    
Prepaid expenses and other current assets (35,830) 368,620
Accounts receivable (326,366) 1,816,376
Deferred costs (2,238,034) (406,498)
Unearned revenues 5,698,778 308,912
Other assets 163,393 (8,005)
Accounts payable, accrued liabilities and other liabilities (1,253,723) 2,122,987
Net cash used in operating activities (14,575,555) (21,827,019)
Cash flows from investing activities:    
Purchase of marketable securities 0 (3,013,157)
Sale of marketable securities 0 7,049,000
Acquisition of property, plant and equipment (1,703,297) (1,802,607)
Net cash (used in) provided by investing activities (1,703,297) 2,233,236
Cash flows from financing activities:    
Net proceeds from issuance of common stock 1,050,712 36,136,414
Repayment of long-term debt (6,348,646) 0
Proceeds from notes payable 368,615 1,089,611
Repayment of notes payable (810,554) (594,979)
Sale of ownership interest in subsidiary 19,400,000 0
Net cash provided by financing activities 13,660,127 36,631,046
Net increase (decrease) in cash and cash equivalents (2,618,725) 17,037,263
Cash and cash equivalents at beginning of period 20,318,411 19,174,061
Cash and cash equivalents at beginning of period 17,699,686 36,211,324
Cash paid during the period for:    
Interest $ 1,200,364 $ 744,811