XML 81 R66.htm IDEA: XBRL DOCUMENT v3.21.1
General & Administrative Expenses, Stock compensation series (Details)
 12 Months Ended
Dec. 31, 2020
shares
$ / shares
October 2005 [Member] | Stock Options [Member]  
Stock Compensation Series [Abstract]  
Number of stock options (in shares) | shares 965
Vesting period 10 years
Fair value at grant date of stock options (in dollars per share) | $ / shares $ 144.00
March 2012 [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 14,515
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 13.80
June 2013 One [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 155,000
Vesting period 4 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 4.15
June 2013 Two [Member] | Stock Options [Member]  
Stock Compensation Series [Abstract]  
Number of stock options (in shares) | shares 155,000
Vesting period 5 years
Fair value at grant date of stock options (in dollars per share) | $ / shares $ 1.31
June 2013 Three [Member] | Stock Options [Member]  
Stock Compensation Series [Abstract]  
Number of stock options (in shares) | shares 155,000
Vesting period 5 years
Fair value at grant date of stock options (in dollars per share) | $ / shares $ 0.97
February 2014 One [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 29,333
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 6.92
February 2014 Two [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 29,333
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 6.33
February 2014 Three [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 29,333
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 5.63
February 2014 Four [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 88,000
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 7.61
June 2014 One [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 95,666
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 6.41
June 2014 Two [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 95,666
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 5.74
June 2014 Three [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 95,666
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 5.13
June 2014 Four [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 287,000
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 7.15
January 2015 [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 850,000
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 8.81
January 2016 [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 824,000
Vesting period 2 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 6.65
January 2017 [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 900,000
Vesting period 2 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 4.61
January 2018 One [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 355,000
Vesting period 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 3.92
January 2018 Two [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 212,000
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 2.30
January 2019 One [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 360,000
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 4.25
January 2019 Two [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 200,000
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 3.04
March 2019 [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 210,000
Vesting period 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 4.60
January 2020 One [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 460,000
Vesting period 3 years
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 8.22
January 2020 Two [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 150,000
Vesting period 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 8.22
January 2020 Three [Member] | Restricted Shares [Member]  
Stock Compensation Series [Abstract]  
Number of restricted shares (in shares) | shares 200,000
Vesting period 1 year
Fair value at grant date of restricted shares (in dollars per share) | $ / shares $ 3.5637