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Cash Dividends	12 Months Ended
	Dec. 31, 2017
Cash Dividends [Abstract]
Cash Dividends	15.  Cash Dividends  We initiated a cash dividend in the third quarter of 2012 and paid the dividend quarterly until our Board of Directors discontinued dividend payments for the foreseeable future in December 2015.  We paid dividend payments of $3.4 million from cash on hand for the year ended December 31, 2015.  The dividend payments were recorded as a reduction to retained earnings on our Consolidated Balance Sheet. 

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- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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