Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation And Other Benefit Plans (Narrative) (Details)

v3.6.0.2
Stock-Based Compensation And Other Benefit Plans (Narrative) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Proceeds from the issuances of common stock     $ 441,000 $ 5,685,000
Stock options, authorized   2,810,605    
Stock-based compensation   $ 192,000 3,810,000 3,321,000
Tax benefits related to stock based compensation   $ 0    
Stock options granted, exercisable life   5 years    
Total intrinsic value of options exercised     $ 300,000 $ 4,100,000
Weighted Average Grant Price, Awards granted   $ 0.49 $ 1.65 $ 2.43
Other benefit plans, cost   $ 316,000 $ 444,000 $ 464,000
Stock Option [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Proceeds from the issuances of common stock   0 0 5,700,000
Unrecognized compensation costs   $ 300,000    
Compensation costs expected to be recognized   1 year 1 month 6 days    
Options exercised   0    
Restricted Stock [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock, vesting period   3 years    
Unrecognized compensation costs   $ 300,000    
Compensation costs expected to be recognized   1 year 9 months 18 days    
Vest-date fair value   $ 600,000 $ 700,000 $ 400,000
Weighted Average Grant Price, Awards granted   $ 1.11 $ 3.34 $ 6.98
Number of shares added to treasury due to tax withholdings on vested shares   40,926    
Awards granted   542,330    
Stock Appreciation Rights (SARs) [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Share-Based Compensation Arrangement By Share-Based Payment Award Life   5 years    
Share-Based Compensation Arrangemet By Share-Based Payment Award Spread   300.00%    
Share-Based Compensation Arrangement By Share-Based Payment Award Grant Date Share Price   $ 1.04    
Stock, vesting period   3 years    
Awards granted 815,355 815,355    
Minimum [Member] | Stock Option [Member] | Portion Of Stock Options Granted In Dec. 31, 2016, 2105 And 2014 [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock, vesting period   2 years    
Maximum [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock, vesting period   5 years    
Maximum [Member] | Stock Option [Member] | Portion Of Stock Options Granted In Dec. 31, 2016, 2105 And 2014 [Member]        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock, vesting period   3 years