Note M - Income Taxes (Details Textual) - USD ($) |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| State and Local Income Tax Expense (Benefit), Continuing Operations | $ 15,000 | $ 15,000 | $ 22,000 | ||||||||
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | $ (9,940,000) | $ (13,433,000) | $ 9,764,000 | $ (2,922,000) | $ (9,204,000) | $ (9,724,000) | $ (29,743,000) | $ (5,967,000) | (16,531,000) | $ (54,638,000) | $ (24,477,000) |
| Operating Loss Carryforwards | 103,364,000 | 103,364,000 | |||||||||
| State and Local Jurisdiction [Member] | |||||||||||
| Operating Loss Carryforwards | $ 108,600,000 | $ 108,600,000 | |||||||||
| Operating Loss Carryforwards, Expiration, Beginning Year | 2027 | ||||||||||
| Operating Loss Carryforwards, Expiration, Ending Year | 2036 | ||||||||||