Supplemental Disclosure of Cash Flow and Non-Cash Investing and Financing Activities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Supplemental disclosure of cash flow and non-cash investing and financing activities [Abstract]
Cash paid for interest	$ 119	$ 118
Income taxes paid	8,289	637
Share issuance of 441,009 shares in connection with acquisition	0	3,346
Share issuances of 17,539 and 43,344 shares in exchange for services performed, respectively	$ 166	$ 346
Shares issued in connection with business combination (in shares)		441,009
Shares issued for services performed (in shares)	17,539	43,344