Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Shareholders’ equity:
Common stock, par value (in dollars per share)	$ 0.02	$ 0.02
Common stock, authorized shares (in shares)	28,000,000us-gaap_CommonStockSharesAuthorized	28,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares)	13,212,669us-gaap_CommonStockSharesIssued	13,089,003us-gaap_CommonStockSharesIssued
Preferred stock, par value (in dollars per share)	$ 0.02	$ 0.02
Preferred stock, authorized shares (in shares)	2,000,000us-gaap_PreferredStockSharesAuthorized	2,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued (in shares)	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Treasury stock, at cost (in shares)	25,703us-gaap_TreasuryStockShares	28,396us-gaap_TreasuryStockShares

Face amount or stated value per share of common stock.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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