Equity and Share Based Payments - Stock Options (Details) - Stock options $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares
Number of Shares
Options outstanding at beginning of period (in shares) | shares	914,470
Options granted (in shares) | shares	30,000
Options exercised (in shares) | shares	(9,500)
Options forfeited / cancelled (in shares) | shares	(269,897)
Options outstanding at end of year (in shares) | shares	665,073
Options exercisable at end of year (in shares) | shares	413,246
Weighted-Average Exercise Price
Options outstanding at beginning of period (in dollars per share) | $ / shares	$ 8.10
Options granted (in dollars per share) | $ / shares	5.34
Options exercised (in dollars per share) | $ / shares	4.84
Options forfeited / cancelled (in dollars per share) | $ / shares	7.85
Options outstanding at end of year (in dollars per share) | $ / shares	8.12
Options exercisable at end of year (in dollars per share) | $ / shares	$ 10.14
Additional disclosure related to options
Unrecognized compensation cost | $	$ 386
Weighted-average period over which compensation cost is expected to be recognized	1 year 6 months