Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital & Accumulated Other Comprehensive Loss	Retained Earnings
Beginning balance (shares) at Dec. 31, 2018		19,389,066
Beginning balance at Dec. 31, 2018	$ 274,554	$ 2	$ 89,258	$ 185,294
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	742			742
Purchase of common stock for tax withholding (shares)		(67,648)
Purchase of common stock for tax withholding	(1,011)		(1,011)
Amortization of stock-based compensation	528		528
Cash dividends declared	(2,479)			(2,479)
Common stock repurchase program including commissions (shares)		(131,012)
Common stock repurchase program including commissions	(1,810)		(1,810)
Issuance of restricted stock under the Equity Plan and other (shares)		13,650
Issuance of restricted stock under the Equity Plan and other	70			70
Cumulative translation adjustment	(60)		(60)
Ending balance (shares) at Mar. 31, 2019		19,204,056
Ending balance at Mar. 31, 2019	270,534	$ 2	86,905	183,627
Beginning balance (shares) at Dec. 31, 2019		19,071,614
Beginning balance at Dec. 31, 2019	250,094	$ 2	85,273	164,819
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(4,539)			(4,539)
Purchase of common stock for tax withholding (shares)		(79,981)
Purchase of common stock for tax withholding	(903)		(903)
Amortization of stock-based compensation	1,182		1,182
Cash dividends declared	(2,488)			(2,488)
Issuance of restricted stock under the Equity Plan and other (shares)		1,918
Issuance of restricted stock under the Equity Plan and other	19			19
Cumulative translation adjustment	(220)		(220)
Ending balance (shares) at Mar. 31, 2020		18,993,551
Ending balance at Mar. 31, 2020	$ 242,780	$ 2	$ 85,332	$ 157,446