Quarterly report pursuant to Section 13 or 15(d)

Debt and Interest - Long-term debt (Detail)

v3.10.0.1
Debt and Interest - Long-term debt (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Debt [Line Items]    
Total notes payable $ 85,064 $ 67,544
Less: Discount of notes payable 1,035 1,035
Total notes payable, net 84,029 66,509
IDB Note [Member]    
Debt [Line Items]    
Total notes payable $ 14,929 14,929
Interest Rate 2.25%  
Maturity Date August - 2020  
2017 Subordinated Note Financing One [Member]    
Debt [Line Items]    
Total notes payable $ 3,254 3,254
Interest Rate 8.00%  
Maturity Date March - 2020  
2017 Subordinated Note Financing Two [Member]    
Debt [Line Items]    
Total notes payable $ 13,893 13,893
Interest Rate 8.00%  
Maturity Date May - 2020  
2017 Subordinated Note Financing Three [Member]    
Debt [Line Items]    
Total notes payable $ 1,820 1,820
Interest Rate 8.00%  
Maturity Date June - 2020  
2017 Subordinated Note Financing Four [Member]    
Debt [Line Items]    
Total notes payable $ 3,017 3,018
Interest Rate 8.00%  
Maturity Date August - 2020  
2017 Subordinated Note Financing Five [Member]    
Debt [Line Items]    
Total notes payable $ 6,371 6,371
Interest Rate 8.00%  
Maturity Date September - 2020  
2018 Venture Notes One [Member]    
Debt [Line Items]    
Total notes payable $ 6,517 0
Interest Rate 8.00%  
Maturity Date February - 2021  
2018 Venture Notes Two [Member]    
Debt [Line Items]    
Total notes payable $ 15,190 0
Interest Rate 8.00%  
Maturity Date March - 2021  
Opus Credit Facility [Member]    
Debt [Line Items]    
Total notes payable $ 9,500 9,500
Interest Rate 12.00%  
Maturity Date September - 2019  
Helocyte Convertible Note One [Member]    
Debt [Line Items]    
Total notes payable $ 0 1,000
Maturity Date December - 2017  
Helocyte Convertible Note One [Member] | Maximum [Member]    
Debt [Line Items]    
Interest Rate 8.00%  
Helocyte Convertible Note Two [Member]    
Debt [Line Items]    
Total notes payable $ 300 2,194
Maturity Date September - 2018  
Helocyte Convertible Note Two [Member] | Maximum [Member]    
Debt [Line Items]    
Interest Rate 8.00%  
Helocyte Convertible Note Three [Member]    
Debt [Line Items]    
Total notes payable $ 0 1,062
Maturity Date April - 2018  
Helocyte Convertible Note Three [Member] | Maximum [Member]    
Debt [Line Items]    
Interest Rate 8.00%  
Helocyte Convertible Note four [Member]    
Debt [Line Items]    
Total notes payable $ 23 444
Maturity Date November - 2018  
Helocyte Convertible Note four [Member] | Maximum [Member]    
Debt [Line Items]    
Interest Rate 8.00%  
Helocyte Convertible Note Five [Member]    
Debt [Line Items]    
Total notes payable $ 0 0
Maturity Date September - 2018  
Helocyte Convertible Note Five [Member] | Maximum [Member]    
Debt [Line Items]    
Interest Rate 8.00%  
Helocyte Convertible Note Six [Member]    
Debt [Line Items]    
Total notes payable $ 10 0
Maturity Date October - 2018  
Helocyte Convertible Note Six [Member] | Maximum [Member]    
Debt [Line Items]    
Interest Rate 8.00%  
Caelum Convertible Note one [Member]    
Debt [Line Items]    
Total notes payable $ 1,036 1,017
Interest Rate 8.00%  
Maturity Date January - 2019  
Caelum Convertible Note Two [Member]    
Debt [Line Items]    
Total notes payable $ 7,024 6,900
Interest Rate 8.00%  
Maturity Date February - 2019  
Caelum Convertible Note one Three [Member]    
Debt [Line Items]    
Total notes payable $ 2,180 $ 2,142
Interest Rate 8.00%  
Maturity Date March - 2019