Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Retained Earnings [Member]
Beginning balance at Dec. 31, 2011	$ 101,655us-gaap_StockholdersEquity	$ 99	$ 20,943	$ (34)	$ 80,647
Beginning balance, shares at Dec. 31, 2011		9,871,000
Common stock issued on exercise of options	1,845	1	1,844	0	0
Common stock issued on exercise of options, shares	131,997	132,000
Share based compensation expense, net of tax	695	0	695	0	0
Share based compensation expense, net of tax, shares		0
Excess tax benefits from share-based compensation	295	0	295	0	0
Company repurchase of common stock	(60,232)	(30)	(22,864)	0	(37,338)
Company repurchase of common stock, shares	0	(2,986,000)
Cash dividends on common stock	(3,550)us-gaap_DividendsCommonStockCash	0	0	0	(3,550)
Unrealized holding gains (losses) on marketable securities, net of tax	57	0	0	57	0
Net (loss) income	13,131us-gaap_NetIncomeLoss	0	0	0	13,131
Ending balance at Dec. 31, 2012	53,896us-gaap_StockholdersEquity	70	913	23	52,890
Ending balance, shares at Dec. 31, 2012		7,017,000
Common stock issued on exercise of options and vesting of restricted stock units	1,860	2	1,858	0	0
Common stock issued on exercise of options and vesting of restricted stock units, shares		148,000
Common stock repurchased on vesting of restricted stock units	(89)	0	(89)	0	0
Common stock issued on exercise of options, shares	138,298
Common stock repurchased on vesting of restricted stock units, shares		0
Share based compensation expense, net of tax	1,016	0	1,016	0	0
Share based compensation expense, net of tax, shares		0
Excess tax benefits from share-based compensation	2,083	0	2,083	0	0
Company repurchase of common stock, shares	0
Cash dividends on common stock	(4,056)us-gaap_DividendsCommonStockCash	0	0	0	(4,056)
Unrealized holding gains (losses) on marketable securities, net of tax	(49)	0	0	(49)	0
Net (loss) income	17,892us-gaap_NetIncomeLoss	0	0	0	17,892
Ending balance at Dec. 31, 2013	72,553us-gaap_StockholdersEquity	72	5,781	(26)	66,726
Ending balance, shares at Dec. 31, 2013		7,165,000
Common stock issued on exercise of options and vesting of restricted stock units	434	0	434	0	0
Common stock issued on exercise of options and vesting of restricted stock units, shares		56,000
Common stock repurchased on vesting of restricted stock units	(407)	0	(407)	0	0
Common stock issued on exercise of options, shares	32,866
Common stock repurchased on vesting of restricted stock units, shares		(8,000)
Share based compensation expense, net of tax	1,699	0	1,699	0	0
Share based compensation expense, net of tax, shares		0
Excess tax benefits from share-based compensation	578	0	578	0	0
Company repurchase of common stock	(3,676)	(1)	(3,675)	0	0
Company repurchase of common stock, shares	(87,200)	(87,000)
Cash dividends on common stock	(5,442)us-gaap_DividendsCommonStockCash	0	0	0	(5,442)
Unrealized holding gains (losses) on marketable securities, net of tax	3	0	0	3	0
Net (loss) income	(27,084)us-gaap_NetIncomeLoss	0	0	0	(27,084)
Ending balance at Dec. 31, 2014	$ 38,658us-gaap_StockholdersEquity	$ 71	$ 4,410	$ (23)	$ 34,200
Ending balance, shares at Dec. 31, 2014		7,126,000

Stock Repurchased During Period Shares Related To Share Based Compensation

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Stock Repurchased During Period Value Related To Share Based Compensation

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Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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Number of shares issued which are neither cancelled nor held in the treasury.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Gross number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Number of share options (or share units) exercised during the current period.

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Value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of stock value of such awards forfeited. Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Gross value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Value of stock issued as a result of the exercise of stock options.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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