Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]
Trade and other accounts receivable, allowance for doubtful accounts	$ 502	$ 319
Common stock, no par value
Common stock, authorized shares	80,000,000	80,000,000
Common stock, issued shares	13,327,077	13,417,877
Common stock, outstanding shares	13,327,077	13,417,877

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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