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Share Based Payments and Employee Benefit Plans - Stock Units And Awards (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
$ / shares
shares
Restricted stock units  
stock units  
Fair value of stock granted | $ $ 1,300
Number of Shares  
Outstanding at beginning of year (in shares) | shares 75,000
Granted (in shares) | shares 242,961
Issued (in shares) | shares (8,334)
Forfeited / cancelled (in shares) | shares (42,406)
Outstanding at end of period (in shares) | shares 267,221
Weighted-Average Grant Date Fair Value  
Outstanding at beginning of year (in dollars per share) | $ / shares $ 3.75
Granted (in dollars per share) | $ / shares 5.34
Issued (in dollars per share) | $ / shares 3.75
Forfeited / cancelled (in dollars per share) | $ / shares 4.72
Outstanding at end of period (in dollars per share) | $ / shares $ 5.04
Additional information  
Unrecognized compensation cost | $ $ 904
Weighted-average period over which compensation cost is expected to be recognized 2 years
Deferred stock units  
Number of Shares  
Outstanding at beginning of year (in shares) | shares 54,500
Granted (in shares) | shares 15,000
Forfeited / cancelled (in shares) | shares (15,000)
Outstanding at end of period (in shares) | shares 54,500
Weighted-Average Grant Date Fair Value  
Outstanding at beginning of year (in dollars per share) | $ / shares $ 6.61
Granted (in dollars per share) | $ / shares 5.34
Forfeited / cancelled (in dollars per share) | $ / shares 5.34
Outstanding at end of period (in dollars per share) | $ / shares $ 6.61
Aggregate grant-date fair value | $ $ 80
Additional information  
Unrecognized compensation cost | $ $ 43
Weighted-average period over which compensation cost is expected to be recognized 1 year 2 months 12 days
Deferred stock units | Minimum  
stock units  
Vesting period 1 year
Deferred stock units | Maximum  
stock units  
Vesting period 3 years
Restricted stock awards  
Number of Shares  
Outstanding at beginning of year (in shares) | shares 35,069
Forfeited / cancelled (in shares) | shares (35,069)
Outstanding at end of period (in shares) | shares 0
Weighted-Average Grant Date Fair Value  
Outstanding at beginning of year (in dollars per share) | $ / shares $ 3.57
Forfeited / cancelled (in dollars per share) | $ / shares $ 3.57
Outstanding at end of period (in dollars per share) | $ / shares