CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (loss)	Total
Balance at Beginning at Dec. 31, 2018		$ 141,359	$ (23,199)	$ (1,285)	$ 116,875
Balance at Beginning (in shares) at Dec. 31, 2018	7,968,420
Increase (Decrease) in Stockholders' Equity
Net income			5,437		5,437
Settlement of share awards		(110)			(110)
Settlement of share awards (in shares)	15,446
Adoption of ASU 2018-02			235	(235)	235
Other comprehensive income, net of tax				1,753	1,753
Share repurchase		(8)			(8)
Share repurchase (in shares)	(582)
Stock-based compensation		1,785			1,785
Balance at Ending at Sep. 30, 2019		143,026	(17,527)	233	125,732
Balance at Ending (in shares) at Sep. 30, 2019	7,983,284
Balance at Beginning at Dec. 31, 2018		141,359	(23,199)	(1,285)	116,875
Balance at Beginning (in shares) at Dec. 31, 2018	7,968,420
Balance at Ending at Dec. 31, 2019		142,797	(14,955)	(164)	127,678
Balance at Ending (in shares) at Dec. 31, 2019	7,940,168
Balance at Beginning at Jun. 30, 2019		142,095	(19,933)	(5)	122,157
Balance at Beginning (in shares) at Jun. 30, 2019	7,983,866
Increase (Decrease) in Stockholders' Equity
Net income			2,406		2,406
Other comprehensive income, net of tax				238	238
Stock-based compensation		939			939
Balance at Ending at Sep. 30, 2019		143,026	(17,527)	233	125,732
Balance at Ending (in shares) at Sep. 30, 2019	7,983,284
Balance at Beginning at Dec. 31, 2019		142,797	(14,955)	(164)	127,678
Balance at Beginning (in shares) at Dec. 31, 2019	7,940,168
Increase (Decrease) in Stockholders' Equity
Net income			19,660		19,660
Settlement of share awards		(258)			(258)
Settlement of share awards (in shares)	34,260
Other comprehensive income, net of tax				987	987
Share repurchase		(370)			(370)
Share repurchase (in shares)	(22,679)
Stock-based compensation		1,879			1,879
Balance at Ending at Sep. 30, 2020		144,048	4,705	823	149,576
Balance at Ending (in shares) at Sep. 30, 2020	7,951,749
Balance at Beginning at Jun. 30, 2020		143,498	(4,925)	844	139,417
Balance at Beginning (in shares) at Jun. 30, 2020	7,939,024
Increase (Decrease) in Stockholders' Equity
Net income			9,630		9,630
Settlement of share awards		(88)			(88)
Settlement of share awards (in shares)	12,725
Other comprehensive income, net of tax				(21)	(21)
Stock-based compensation		638			638
Balance at Ending at Sep. 30, 2020		$ 144,048	$ 4,705	$ 823	$ 149,576
Balance at Ending (in shares) at Sep. 30, 2020	7,951,749