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Stock Based Compensation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock based compensation:
Employee Service Shared-based Compensation, Tax Benefit from Compensation Expense, Restricted Stock	$ 110,000	$ 33,000	$ (126,000)
Restricted stock, weighted average grant date fair value:
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 10
2006 Plan
Stock based compensation:
Number of shares authorized for grant	3,000,000
Shares Remaining for Issuance	744,697
Stock Appreciation Rights (SARs) [Member]
Stock based compensation:
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	222,112	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 2.57	$ 0.00
Restricted stock, weighted average grant date fair value:
Total unrecognized compensation expense	$ 386,000	$ 0
Weighted average period for recognition of compensation expense	2 years 4 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	4 years 4 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	226,021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 2.57
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 0.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 2.57
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares	(3,909)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	$ 2.57
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	29,028
Stock Appreciation Rights (SARs) [Member] | Selling, General and Administrative Expenses [Member]
Stock based compensation:
Stock based compensation expense	$ 185,000	$ 0
Restricted Stock [Member]
Restricted stock, nonvested:
Restricted stock, nonvested, beginning of year (in shares)	349,885	141,095	158,261
Restricted stock, grants in period (in shares)	135,268	315,429	84,643
Restricted stock, vested in period (in shares)	(117,828)	(82,067)	(95,717)
Restricted stock, forfeitures in period (in shares)	(23,406)	(24,572)	(6,092)
Restricted stock, nonvested, end of year (in shares)	343,919	349,885	141,095
Restricted stock, weighted average grant date fair value:
Restricted stock, nonvested, weighted average grant date fair value, beginning of period (USD per share)	$ 10.62	$ 16.79	$ 14.55
Restricted stock, grants in period, weighted average grant date fair value (USD per share)	7.65	11.32	19.17
Restricted stock, vested in period, weighted average grant date fair value (USD per share)	13.81	16.57	15.25
Restricted stock, forfeitures in period, weighted average grant date fair value (USD per share)	15.02	16.91	17.93
Restricted stock, nonvested, weighted average grant date fair value, end of period (USD per share)	$ 9.37	$ 10.62	$ 16.79
Total unrecognized compensation expense	$ 1,923,000	$ 2,598,000
Weighted average period for recognition of compensation expense	1 year 10 months
Shares Paid for Tax Withholding for Share Based Compensation	16,047	17,180	19,533
Restricted Stock [Member] | 2006 Plan
Stock based compensation:
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Restricted Stock [Member] | Selling, General and Administrative Expenses [Member]
Stock based compensation:
Stock based compensation expense	$ 1,379,000	$ 1,774,000	$ 1,331,000
Equity [Member]
Stock based compensation:
Employee Service Shared-based Compensation, Tax Benefit from Compensation Expense, Restricted Stock			$ (126,000)

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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