Statements of Stockholders' Equity (USD $)	Total	Common Stock	Capital in Excess of Par Value	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive (Loss) Income Member
Balance at Dec. 31, 2011	$ 9,020,433us-gaap_StockholdersEquity	$ 326,115	$ 9,911,914	$ (614,315)	$ (562,469)	$ (40,812)
Balance (in shares) at Dec. 31, 2011		3,261,148			257,114
Net income (loss)	89,512us-gaap_NetIncomeLoss	0	0	89,512	0	0
Other comprehensive income (loss), net of taxes	(9,308)	0	0	0	0	(9,308)
Exercise of stock options	50,800		17,986	0	32,814	0
Exercise of stock options, Shares		0			(15,000)
Tax benefits related to stock options	7,261	0	7,261	0	0	0
Stock-based compensation	35,985	0	35,985	0	0	0
Balance at Dec. 31, 2012	9,194,683us-gaap_StockholdersEquity	326,115	9,973,146	(524,803)	(529,655)	(50,120)
Balance (in shares) at Dec. 31, 2012		3,261,148			242,114
Net income (loss)	117,395us-gaap_NetIncomeLoss	0	0	117,395	0	0
Other comprehensive income (loss), net of taxes	30,284	0	0	0	0	30,284
Exercise of stock options	21,750		6,436	0	15,314	0
Exercise of stock options, Shares		0			(7,000)
Tax benefits related to stock options	398	0	398	0	0	0
Stock-based compensation	31,359	0	31,359	0	0	0
Balance at Dec. 31, 2013	9,395,869us-gaap_StockholdersEquity	326,115	10,011,339	(407,408)	(514,341)	(19,836)
Balance (in shares) at Dec. 31, 2013		3,261,148			235,114
Net income (loss)	(167,159)us-gaap_NetIncomeLoss	0	0	(167,159)	0	0
Other comprehensive income (loss), net of taxes	(3,495)	0	0	0	0	(3,495)
Exercise of stock options	3,149		962	0	2,187	0
Exercise of stock options, Shares		0			(1,000)
Stock-based compensation	30,004	0	30,004	0	0	0
Balance at Dec. 31, 2014	$ 9,258,368us-gaap_StockholdersEquity	$ 326,115	$ 10,042,305	$ (574,567)	$ (512,154)	$ (23,331)
Balance (in shares) at Dec. 31, 2014		3,261,148			234,114

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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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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- Definition

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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- Definition

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

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