Shareholders' equity (Tables)

3 Months Ended

Mar. 31, 2018

Shareholders' equity [Abstract]

Changes in shareholders' equity

Changes in shareholders' equity for the three months ended March 31, 2018 were as follows (in thousands):

Balance at December 31, 2017	$	26,014
Net income		680
Share-based compensation expense		161
Issuance of shares from exercise of stock options		94
Foreign currency translation adjustment		(1	)
Relinquishment of stock awards upon exercise and fully vested deferred stock units		(246	)
Dividends declared and paid on common stock		(673	)
Purchase of common stock for treasury		(1,562	)
Balance at March 31, 2018	$	24,467