Note E - Preferred Stock and Warrants (Details Textual) - $ / shares		3 Months Ended
	Oct. 05, 2018	Mar. 31, 2019	Dec. 31, 2018	Feb. 09, 2016
Preferred Stock, Shares Authorized		10,000,000
Preferred Stock, Shares Issued, Total		9,577
Preferred Stock, Shares Outstanding, Ending Balance		3,337	3,337
Exchanged 2021 Notes for Series A Preferred Stock [Member]
Debt Conversion, Converted Instrument, Shares Issued	9,577
Preferred Stock, Aggregate Stated Value Per Share	$ 1,000
Series A Preferred Stock [Member]
Preferred Stock, Shares Authorized		9,578
Preferred Stock, Shares Outstanding, Ending Balance		3,337
Preferred Stock, Aggregate Stated Value Per Share	1,000
Convertible Preferred Stock, Conversion Price	$ 3
Convertible Preferred Stock, Shares Issuable Upon Conversion	3,192,334	1,112,334
Convertible Preferred Stock, Conversion Restriction, Percentage of Common Stock	4.985%
Preferred Stock, Par or Stated Value Per Share	$ 0.0001			$ 0.0001
Conversion of Stock, Shares Converted		6,240
Conversion of Stock, Shares Issued		2,080,000