Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000786947 (http://www.sec.gov/CIK)

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	A summary of our stock option plans as of December 31, 2016 and 2015 and for the years then ended consisted of the following (in thousands except exercise price):       Years Ended December 31,       2016   2015           Weighted       Weighted       Number   Average       Average       of   Exercise   Number of   Exercise       Options   Price   Options   Price   Outstanding, beginning     1,198   $ 15.67     911   $ 20.70   Granted     199     0.92     315     2.01   Exercised     -     -     -     -   Forfeited or expired     -     -     (28)     26.75   Outstanding, ending     1,397   $ 15.67     1,198   $ 15.67   Exercisable, ending     1,062   $ 17.41     814   $ 22.04
Schedule of Nonvested Share Activity	The following table summarizes information about nonvested stock options outstanding at December 31, 2016 (in thousands except price data):       Number of   Weighted       Options Not   Average Fair       Exercisable   Value   Outstanding at December 31, 2015     384   $ 1.85   Granted     199     0.92   Vested     (248)     1.89   Forfeited     -     -   Outstanding at December 31, 2016     335   $ 1.18
Schedule of fair value of the warrants	The assumptions used in the Black-Scholes model to determine fair value for the 2016 and 2015 stock option grants were:       2016     2015   Expected dividend yield     0.0 %     0.0 % Risk-free interest rates     2.3 %     2.2 % Average expected  volatility     85 %     89 % Expected term (years)     10       10   Weighted average grant date fair value   $ 0.77     $ 1.72
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	A summary of the grants under the RSU Plans as of December 31, 2016 and 2015, and for the years then ended consisted of the following (in thousands):       Years Ended December 31,       2016   2015           Number of       Number of       Number of   Vested   Number of   Vested       RSUs   RSUs   RSUs   RSUs   Outstanding, beginning     45     45     29     29   Granted     88     -     42     -   Distributed     (42)     (42)     (26)     (26)   Vested     -     88     -     42   Forfeited or expired     -     -     -     -   Outstanding, ending     91     91     45     45