Earnings per share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reconciliation of the weighted average shares outstanding for the basic and diluted EPS computations [Abstract]
Loss from continuing operations	$ (989)	$ (369)
Basic:
Shares outstanding at beginning of period (in shares)	15,473	15,154
Weighted average shares issued during the period, net (in shares)	26	0
Weighted average common shares, basic (in shares)	15,499	15,154
Earnings from continuing operations per common share, basic (in dollars per share)	$ (0.06)	$ (0.02)
Diluted:
Dilutive impact of stock options and restricted stock awards (in shares)	0	0
Weighted average common shares, diluted (in shares)	15,499	15,154
Earnings from continuing operations per common share, diluted (in dollars per share)	$ (0.06)	$ (0.02)