Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Liquidity (Details Textual)

v3.7.0.1
Note 2 - Liquidity (Details Textual) - USD ($)
$ in Millions
Mar. 03, 2017
Jun. 22, 2016
Jun. 30, 2017
Feb. 28, 2017
CRG Loan Agreement, Ohio Case [Member]        
Release of Cash Held in Escrow $ 2.0      
CRG Loan Agreement, Texas Case [Member]        
Release of Cash Held in Escrow 3.0      
Term Loan Agreement [Member] | Cardinal Health 414 [Member]        
Letters of Credit Outstanding, Amount 7.0      
Term Loan Agreement [Member] | CRG [Member]        
Letters of Credit Outstanding, Amount 12.0      
CRG [Member] | Term Loan Agreement [Member]        
Debt Instrument, Interest Rate, Stated Percentage       14.00%
Debt Instrument, Default, Interest Rate, Stated Percentage       18.00%
Debt Instrument, Final Payoff Amount, Threshold Above Which the Reporting Entity Will First Pay Without Resorting to Letter of Credit 59.0      
Primary Bank Account Cash Taken Possession Of By Creditor   $ 4.1    
Repayments of Debt 59.0      
Debt Instrument, Amount That May Become Due Depending on the Outcome of Litigation     $ 7.0  
CRG [Member] | Term Loan Agreement [Member] | Minimum [Member]        
Debt Instrument, Agreed-upon Final Payoff Amount 47.0      
CRG [Member] | Term Loan Agreement [Member] | Maximum [Member]        
Debt Instrument, Agreed-upon Final Payoff Amount 66.0      
PPCO [Member] | Platinum Loan Agreement [Member]        
Repayments of Debt 7.7      
Convertible Debt $ 1.9