Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings
Beginning Balance at Dec. 31, 2019	$ 55,704	$ 12,094	$ (14,235)	$ 8,262	$ (1,988)	$ 51,571
Beginning Balance, shares at Dec. 31, 2019		3,350,833
Net income	6,055					6,055
Other comprehensive income (loss)	142				142
Stock compensation expense	929			929
Distributions to shareholders	(1,201)					(1,201)
Issuance of common stock	59	$ 7		52
Issuance of common stock (shares)		2,500
Cash settlement of stock options	(805)			(805)
Purchase of treasury stock	(287)		(287)
Purchase of treasury stock (shares)		(14,420)
Ending Balance at Sep. 30, 2020	60,596	$ 12,101	(14,522)	8,438	(1,846)	56,425
Ending Balance, shares at Sep. 30, 2020		3,338,913
Beginning Balance at Jun. 30, 2020	59,007	$ 12,094	(14,522)	8,304	(2,116)	55,247
Beginning Balance, shares at Jun. 30, 2020		3,336,413
Net income	1,579					1,579
Other comprehensive income (loss)	270				270
Stock compensation expense	327			327
Distributions to shareholders	(401)					(401)
Issuance of common stock	59	$ 7		52
Issuance of common stock (shares)		2,500
Cash settlement of stock options	(245)			(245)
Ending Balance at Sep. 30, 2020	60,596	$ 12,101	(14,522)	8,438	(1,846)	56,425
Ending Balance, shares at Sep. 30, 2020		3,338,913
Beginning Balance at Dec. 31, 2020	$ 62,717	$ 12,101	(14,522)	7,931	(826)	58,033
Beginning Balance, shares at Dec. 31, 2020	3,338,913	3,338,913
Net income	$ 11,322					11,322
Other comprehensive income (loss)	(330)				(330)
Stock compensation expense	1,341			1,341
Distributions to shareholders	(1,357)					(1,357)
Issuance of common stock	3,066	$ 552		2,514
Issuance of common stock (shares)		220,774
Cash settlement of stock options	(211)			(211)
Ending Balance at Sep. 30, 2021	$ 76,548	$ 12,653	(14,522)	11,575	(1,156)	67,998
Ending Balance, shares at Sep. 30, 2021	3,559,687	3,559,687
Beginning Balance at Jun. 30, 2021	$ 74,452	$ 12,576	(14,522)	10,829	(846)	66,415
Beginning Balance, shares at Jun. 30, 2021		3,529,208
Net income	2,046					2,046
Other comprehensive income (loss)	(310)				(310)
Stock compensation expense	455			455
Distributions to shareholders	(463)					(463)
Issuance of common stock	368	$ 77		291
Issuance of common stock (shares)		30,479
Ending Balance at Sep. 30, 2021	$ 76,548	$ 12,653	$ (14,522)	$ 11,575	$ (1,156)	$ 67,998
Ending Balance, shares at Sep. 30, 2021	3,559,687	3,559,687