Change in Capital Structure (Details) $ / shares in Units, $ in Thousands			12 Months Ended
	Sep. 20, 2018 USD ($) $ / shares shares	Jul. 06, 2018	Dec. 31, 2018 USD ($) $ / shares shares	Jun. 26, 2018 $ / shares shares	Dec. 31, 2017 $ / shares shares
Change in Capital Structure [Abstract]
Common stock, shares authorized (in shares) | shares			50,000,000	50,000,000	50,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares) | shares			1,000,000	1,000,000	1,000,000
Preferred stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01	$ 0.01
Stock split ratio		24
Deferred tax assets tax (benefit) | $			$ (863)
IPO [Member]
Change in Capital Structure [Abstract]
Sold and issued shares of common stock (in shares) | shares	2,900,000
Common stock price per share (in dollars per share) | $ / shares	$ 19
Net proceeds from initial public offering | $	$ 50,100
Non-voting Common Stock [Member]
Change in Capital Structure [Abstract]
Common stock, shares authorized (in shares) | shares			20,000,000	20,000,000	20,000,000
Common stock, par value (in dollars per share) | $ / shares			$ 0.01	$ 0.01	$ 0.01