Condensed Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Accumulated deficit
Beginning balance at Dec. 31, 2018	$ 46,368	$ 1	$ 54,791	$ (8,424)
Beginning balance (in shares) at Dec. 31, 2018		7,592,911
Stock-based compensation	367		367
Shares issued related to vested restricted stock units	0
Shares issued related to vested restricted stock units (in shares)		50,222
Net income (loss)	1,847			1,847
Ending balance at Mar. 31, 2019	49,093	$ 1	55,158	(6,066)
Ending balance (in shares) at Mar. 31, 2019		7,643,133
Beginning balance at Dec. 31, 2018	46,368	$ 1	54,791	(8,424)
Beginning balance (in shares) at Dec. 31, 2018		7,592,911
Net income (loss)	559
Net income (loss) | Accounting Standards Update 2016-02	0
Ending balance at Jun. 30, 2019	48,319	$ 1	55,673	(7,355)
Ending balance (in shares) at Jun. 30, 2019		7,643,133
Beginning balance at Mar. 31, 2019	49,093	$ 1	55,158	(6,066)
Beginning balance (in shares) at Mar. 31, 2019		7,643,133
Stock-based compensation	515		515
Net income (loss)	(1,289)			(1,289)
Net income (loss) | Accounting Standards Update 2016-02	0
Ending balance at Jun. 30, 2019	48,319	$ 1	55,673	(7,355)
Ending balance (in shares) at Jun. 30, 2019		7,643,133
Beginning balance at Dec. 31, 2019	46,870	$ 1	56,557	(9,688)
Beginning balance (in shares) at Dec. 31, 2019		7,688,958
Stock-based compensation	295		295
Shares issued related to vested restricted stock units	0
Shares issued related to vested restricted stock units (in shares)		104,905
Net income (loss)	(52)			(52)
Ending balance at Mar. 31, 2020	47,113	$ 1	56,852	(9,740)
Ending balance (in shares) at Mar. 31, 2020		7,793,863
Beginning balance at Dec. 31, 2019	46,870	$ 1	56,557	(9,688)
Beginning balance (in shares) at Dec. 31, 2019		7,688,958
Net income (loss)	2,895
Ending balance at Jun. 30, 2020	50,200	$ 1	56,992	(6,793)
Ending balance (in shares) at Jun. 30, 2020		7,853,377
Beginning balance at Mar. 31, 2020	47,113	$ 1	56,852	(9,740)
Beginning balance (in shares) at Mar. 31, 2020		7,793,863
Stock-based compensation	140		140
Shares issued related to vested restricted stock units	0
Shares issued related to vested restricted stock units (in shares)		59,514
Net income (loss)	2,947			2,947
Ending balance at Jun. 30, 2020	$ 50,200	$ 1	$ 56,992	$ (6,793)
Ending balance (in shares) at Jun. 30, 2020		7,853,377