Consolidated Statements of Stockholders Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjustment
Shares outstanding at beginning of period (in shares) at Dec. 31, 2017			9,365
Total stockholders' equity at beginning of period at Dec. 31, 2017	$ 9,192	$ 934	$ 94	$ 68,035	$ (56,197)	$ 939	$ (2,740)	$ (5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASC Topic 606	(3,617)				(3,617)
Net loss	(543)						(543)
Issuance of restricted stock, shares			277
Other comprehensive loss, net of taxes	(10)		$ 2	(12)
Redemption of stock to cover tax withholding for employee stock plans, shares			(18)
Redemption of stock related to tax withholdings on employee stock plan issuances	(33)		$ 0	(33)
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	1,082			1,082
Shares outstanding at end of period (in shares) at Dec. 31, 2018			9,624
Total stockholders' equity at end of period at Dec. 31, 2018	7,005	$ 190	$ 96	69,072	(58,875)	$ 190	(3,288)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASC Topic 606	(6,443)				(6,443)
Net loss	427						427
Stock Issued During Period, Shares, Other			3,652
Stock Issued During Period, Value, Other	8,201		$ 37	8,164
Issuance of restricted stock, shares			304
Other comprehensive loss, net of taxes	46		$ 3	43
Redemption of stock to cover tax withholding for employee stock plans, shares			(27)
Redemption of stock related to tax withholdings on employee stock plan issuances	(75)		$ 0	(75)
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	857			857
Shares outstanding at end of period (in shares) at Dec. 31, 2019			13,553
Total stockholders' equity at end of period at Dec. 31, 2019	10,208		$ 136	78,061	(65,128)		(2,861)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of ASC Topic 606	(9,200)				(9,200)
Net loss	447						447
Issuance of restricted stock, shares			284
Other comprehensive loss, net of taxes	440		$ 2	438
Redemption of stock to cover tax withholding for employee stock plans, shares			(57)
Redemption of stock related to tax withholdings on employee stock plan issuances	(188)		$ 0	(188)
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	1,178			1,178
Shares outstanding at end of period (in shares) at Dec. 31, 2020			13,780
Total stockholders' equity at end of period at Dec. 31, 2020	$ 2,885		$ 138	$ 79,489	$ (74,328)		$ (2,414)