CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED BALANCE SHEETS
Trade receivables, allowance for doubtful accounts (in dollars)	$ 802	$ 177
Common stock, par value (in dollars per share)
Common stock, authorized shares	50,000	50,000
Common stock, shares issued	9,091	8,631
Common stock, shares outstanding	9,091	8,631
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, authorized shares	5,000	5,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0