Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (loss)	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2020		14,809
Beginning balance at Dec. 31, 2020	$ 306,925	$ 148	$ 195,597	$ 0	$ 111,180
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in public offering (in shares)		3,680
Issuance of common stock in public offering	86,205	$ 37	86,168
Issuance of common stock under employee benefit plans (in shares)		272
Issuance of common stock under employee benefit plans	0	$ 3	(3)
Deemed repurchased shares of common and restricted stock for tax withholding (in shares)		(90)
Deemed repurchased shares of common and restricted stock for tax withholding	(2,773)	$ (1)	(2,772)
Stock-based compensation	2,180		2,180
Unrealized gain on hedging derivatives, net of taxes	0
Net income	8,107				8,107
Ending balance (in shares) at Mar. 31, 2021		18,671
Ending balance at Mar. 31, 2021	400,644	$ 187	281,170	0	119,287
Beginning balance (in shares) at Dec. 31, 2021		18,709
Beginning balance at Dec. 31, 2021	415,612	$ 187	286,385	108	128,932
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee benefit plans (in shares)		218
Issuance of common stock under employee benefit plans	0	$ 3	(3)
Deemed repurchased shares of common and restricted stock for tax withholding (in shares)		(71)
Deemed repurchased shares of common and restricted stock for tax withholding	(1,444)	$ (1)	(1,443)
Stock-based compensation	2,356		2,356
Unrealized gain on hedging derivatives, net of taxes	1,324			1,324
Net income	5,333				5,333
Ending balance (in shares) at Mar. 31, 2022		18,856
Ending balance at Mar. 31, 2022	$ 423,181	$ 189	$ 287,295	$ 1,432	$ 134,265