Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Notes Payable (Details Textual)

Note 10 - Notes Payable (Details Textual) - USD ($)			1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended
Note 10 - Notes Payable (Details Textual) - USD ($)	Mar. 03, 2017	Jun. 22, 2016	Dec. 31, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Feb. 28, 2017	May 31, 2015	Jul. 31, 2012
Paid-in-Kind Interest								$ 211,443	$ 1,367,259
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)									(1,800,000)
Interest Expense, Debt				$ 26,000	$ 2,600,000			1,800,000	12,300,000
Amortization of Debt Discount (Premium)				29,000	190,000			0	78,000
Term Loan Agreement [Member] \| Cardinal Health 414 [Member]
Letters of Credit Outstanding, Amount	$ 7,000,000
Term Loan Agreement [Member] \| CRG [Member]
Letters of Credit Outstanding, Amount	12,000,000
Notes Payable Issued for Prepayment of Insurance Premiums [Member] \| IPFS [Member]
Notes Payable			$ 306,000	0				0
Debt Instrument, Face Amount			$ 348,000
Debt Instrument, Interest Rate, Stated Percentage			8.99%
Debt Instrument, Term			240 days
Debt Instrument, Periodic Payment			$ 45,000
Capital Royalty Group, Term Loan [Member]
Payments to Collection of Collateral on Claims of Default							$ 778,000		778,000
Payments to Prepayment Premium on Claims of Default							2,100,000		2,100,000
Debt Instrument, Unamortized Discount					2,000,000		$ 2,000,000		2,000,000
PPCO [Member] \| Platinum Loan Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity												$ 50,000,000
Repayments of Debt	7,700,000
Convertible Debt	1,900,000
Paid-in-Kind Interest								211,000	814,000
Notes Payable			9,487,822	1,981,676				1,981,676
Embedded Derivative, Fair Value of Embedded Derivative Liability			153,000	0				0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)				$ 0	$ 839,000			$ (153,000)	$ (1,800,000)
CRG [Member] \| Term Loan Agreement [Member]
Repayments of Debt	59,000,000
Paid-in-Kind Interest						$ 519,000
Notes Payable			51,700,000
Debt Instrument, Face Amount											$ 50,000,000
Debt Instrument, Additional Loans That May Be Made Available Upon the Satisfaction of Certain Conditions											$ 10,000,000
Primary Bank Account Cash Taken Possession Of By Creditor		$ 4,100,000
Debt Instrument, Final Payoff Amount, Threshold Above Which the Reporting Entity Will First Pay Without Resorting to Letter of Credit	59,000,000
Debt Instrument, Interest Rate, Stated Percentage										14.00%
CRG [Member] \| Term Loan Agreement [Member] \| Minimum [Member]
Debt Instrument, Agreed-upon Final Payoff Amount	47,000,000
CRG [Member] \| Term Loan Agreement [Member] \| Maximum [Member]
Debt Instrument, Agreed-upon Final Payoff Amount	$ 66,000,000
CRG [Member] \| Term Loan Agreement [Member] \| Accrued Liabilities and Other [Member]
Interest Payable, Current			$ 5,800,000